118 results on '"Kasparinskis, Raimonds"'
Search Results
2. Barriers and opportunities of soil knowledge to address soil challenges: Stakeholders’ perspectives across Europe
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Vanino, Silvia, Pirelli, Tiziana, Di Bene, Claudia, Bøe, Frederik, Castanheira, Nádia, Chenu, Claire, Cornu, Sophie, Feiza, Virginijus, Fornara, Dario, Heller, Olivier, Kasparinskis, Raimonds, Keesstra, Saskia, Lasorella, Maria Valentina, Madenoğlu, Sevinç, Meurer, Katharina H.E., O'Sullivan, Lilian, Peter, Noemi, Piccini, Chiara, Siebielec, Grzegorz, Smreczak, Bozena, Thorsøe, Martin Hvarregaard, and Farina, Roberta
- Published
- 2023
- Full Text
- View/download PDF
3. A global perspective on soil science education at third educational level; knowledge, practice, skills and challenges
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Charzyński, Przemysław, Urbańska, Magdalena, Franco Capra, Gian, Ganga, Antonio, Holmes, Peter, Szulczewski, Melanie, Baatar, Undrakh-Od, Boularbah, Ali, Bresilla, Betim, Cacovean, Horea, Datta, Ashim, Gadsby, Helen, Gargouri, Kamel, Gebrehiwot Gebregeorgis, Eyob, Giani, Luise, Grover, Samantha, Juliev, Mukhiddin, Kasparinskis, Raimonds, Kawahigashi, Masayuki, Anna Kellermann, Liv, John Kim, Kye-Hoon, Krótka, Lenka, Kukuļs, Imants, Kunchulia, Ilia, Laaouidi, Younes, Leglize, Pierre, Mouketou-Tarazewicz, Dieudonne, Mugagga, Frank, József Novák, Tibor, Ortiz, Juan, Osuna-Vallejo, Veronica, Penížek, Vít, Tomov, Plamen, Prokofeva, Tatiana, Pulido, Manuel, Recha, Charles W., Reintam, Endla, Repe, Blaž, Şahin, Salih, Hassan Salehi, Mohammad, Tankari Dan Badjo, Abdourahamane, Teperics, Károly, Törmänen, Tiina, Tsyrybka, Viktar, Vaisvalavičius, Rimantas, Vezzani, Fabiane, and Zhang, Shugang
- Published
- 2022
- Full Text
- View/download PDF
4. Land-use legacies affect Norway spruce Picea abies colonization on abandoned marginal agricultural land in Eastern Baltics
- Author
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Rūsiņa, Solvita, Prižavoite, Dana, Nikodemus, Oļģerts, Brūmelis, Guntis, Gustiņa, Lauma, and Kasparinskis, Raimonds
- Published
- 2021
- Full Text
- View/download PDF
5. Impact of Anthropogenic Activities on Microbial Community Structure in Riverbed Sediments of East Kazakhstan
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Muter, Olga, primary, Gudrā, Dita, additional, Daumova, Gulzhan, additional, Idrisheva, Zhanat, additional, Rakhymberdina, Marzhan, additional, Tabors, Guntis, additional, Dirnēna, Baiba, additional, Dobkeviča, Linda, additional, Petrova, Olga, additional, Apshikur, Baitak, additional, Luņģe, Megija, additional, Fridmanis, Dāvids, additional, Denissov, Igor, additional, Bekishev, Yerkebulan, additional, Kasparinskis, Raimonds, additional, Mukulysova, Zarina, additional, and Polezhayev, Stanislav, additional
- Published
- 2024
- Full Text
- View/download PDF
6. Bacterial and archaeal community structure in benthic sediments from glacial lakes at the Múlajökull Glacier, central Iceland
- Author
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Lamsters, Kristaps, Ustinova, Monta, Birzniece, Līga, Silamiķelis, Ivars, Gaidelene, Julia, Karušs, Jānis, Krievāns, Māris, Kasparinskis, Raimonds, Fridmanis, Dāvids, and Muter, Olga
- Published
- 2020
- Full Text
- View/download PDF
7. Stocktake study of current fertilisation recommendations across Europe and discussion towards a more harmonised approach
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European Commission, Higgins, Suzanne [0000-0001-6116-4410], Keesstra, S. D. [0000-0003-4129-9080], Kadziuliene, Z. [0000-0001-6181-5885], Jordan-Meille, L. [0000-0003-1169-7002], Trinchera, A. [0000-0003-3655-5617], Spiegel, H. [0000-0003-1285-8509], Sandén, T. [0000-0002-9542-0117], Baumgarten, A. [0000-0001-7454-7592], Jensen, Johannes L. [0000-0002-0415-6665], Hirte, Juliane [0000-0002-8873-955X], Liebisch, Frank [0000-0003-0000-7491], Löw, P. [0000-0001-9042-5528], Kuka, K. [0000-0002-9867-725X], De Boever, M. [0000-0001-9352-0475], D'Haene, Karoline [0000-0002-9637-0844], Madenoglu, S. [0000-0002-5012-2773], Ozcan, H. [0000-0001-6752-4077], Vervuurt, W. [0000-0002-0474-0597], de Haan, J.J. [0000-0002-5686-4348], Stenberg, B. [0000-0003-3018-4990], Denoroy, P. [0000-0003-0378-0746], Mihelič, R. [0000-0002-6845-1903], Astover, A. [0000-0002-8924-6925], Mano, R. [0000-0001-6591-4880], Sempiterno, C. [0000-0002-8727-9803], Valboa, G. [0000-0002-6884-0191], Aronsson, Helena [0000-0003-2251-0223], Krogstad, T. [0000-0003-4728-6301], Torma, S. [0000-0002-4444-9067], Gabriel, José Luis [0000-0002-5508-4120], Laszlo, P. [0000-0001-5604-0982], Adamczyk, Bartosz [0000-0003-4286-9508], Jurga, Beata [0000-0001-9398-0359], Smreczak, Bożena [0000-0001-8972-8636], Huyghebaert, Bruno [0000-0002-4245-2721], Kasparinskis, Raimonds [0000-0003-3692-1621], Mason, E. [0000-0002-3537-6900], Chenu, C. [0000-0001-9054-0489], Higgins, Suzanne, Keesstra, S. D., Kadziuliene, Z., Jordan-Meille, L., Wall, David, Trinchera, A., Spiegel, H., Sandén, T., Baumgarten, A., Jensen, Johannes L., Hirte, Juliane, Liebisch, Frank, Klages, Susanne, Löw, P., Kuka, K., De Boever, M., D'Haene, Karoline, Madenoglu, S., Ozcan, H., Vervuurt, W., de Haan, J.J., van Geel, W.C.A, Stenberg, B., Denoroy, P., Mihelič, R., Astover, A., Mano, R., Sempiterno, C., Calouro, F., Valboa, G., Aronsson, Helena, Krogstad, T., Torma, S., Gabriel, José Luis, Laszlo, P., Borchard N., Adamczyk, Bartosz, Jacobs, A., Jurga, Beata, Smreczak, Bożena, Huyghebaert, Bruno, Abras, Morgan, Kasparinskis, Raimonds, Mason, E., Chenu, C., European Commission, Higgins, Suzanne [0000-0001-6116-4410], Keesstra, S. D. [0000-0003-4129-9080], Kadziuliene, Z. [0000-0001-6181-5885], Jordan-Meille, L. [0000-0003-1169-7002], Trinchera, A. [0000-0003-3655-5617], Spiegel, H. [0000-0003-1285-8509], Sandén, T. [0000-0002-9542-0117], Baumgarten, A. [0000-0001-7454-7592], Jensen, Johannes L. [0000-0002-0415-6665], Hirte, Juliane [0000-0002-8873-955X], Liebisch, Frank [0000-0003-0000-7491], Löw, P. [0000-0001-9042-5528], Kuka, K. [0000-0002-9867-725X], De Boever, M. [0000-0001-9352-0475], D'Haene, Karoline [0000-0002-9637-0844], Madenoglu, S. [0000-0002-5012-2773], Ozcan, H. [0000-0001-6752-4077], Vervuurt, W. [0000-0002-0474-0597], de Haan, J.J. [0000-0002-5686-4348], Stenberg, B. [0000-0003-3018-4990], Denoroy, P. [0000-0003-0378-0746], Mihelič, R. [0000-0002-6845-1903], Astover, A. [0000-0002-8924-6925], Mano, R. [0000-0001-6591-4880], Sempiterno, C. [0000-0002-8727-9803], Valboa, G. [0000-0002-6884-0191], Aronsson, Helena [0000-0003-2251-0223], Krogstad, T. [0000-0003-4728-6301], Torma, S. [0000-0002-4444-9067], Gabriel, José Luis [0000-0002-5508-4120], Laszlo, P. [0000-0001-5604-0982], Adamczyk, Bartosz [0000-0003-4286-9508], Jurga, Beata [0000-0001-9398-0359], Smreczak, Bożena [0000-0001-8972-8636], Huyghebaert, Bruno [0000-0002-4245-2721], Kasparinskis, Raimonds [0000-0003-3692-1621], Mason, E. [0000-0002-3537-6900], Chenu, C. [0000-0001-9054-0489], Higgins, Suzanne, Keesstra, S. D., Kadziuliene, Z., Jordan-Meille, L., Wall, David, Trinchera, A., Spiegel, H., Sandén, T., Baumgarten, A., Jensen, Johannes L., Hirte, Juliane, Liebisch, Frank, Klages, Susanne, Löw, P., Kuka, K., De Boever, M., D'Haene, Karoline, Madenoglu, S., Ozcan, H., Vervuurt, W., de Haan, J.J., van Geel, W.C.A, Stenberg, B., Denoroy, P., Mihelič, R., Astover, A., Mano, R., Sempiterno, C., Calouro, F., Valboa, G., Aronsson, Helena, Krogstad, T., Torma, S., Gabriel, José Luis, Laszlo, P., Borchard N., Adamczyk, Bartosz, Jacobs, A., Jurga, Beata, Smreczak, Bożena, Huyghebaert, Bruno, Abras, Morgan, Kasparinskis, Raimonds, Mason, E., and Chenu, C.
- Abstract
The European Commission has set targets for a reduction in nutrient losses by at least 50% and a reduction in fertiliser use by at least 20% by 2030 while ensuring no deterioration in soil fertility. Within the mandate of the European Joint Programme EJP Soil ‘Towards climate-smart sustainable management of agricultural soils’, the objective of this study was to assess current fertilisation practices across Europe and discuss the potential for harmonisation of fertilisation methodologies as a strategy to reduce nutrient loss and overall fertiliser use. A stocktake study of current methods of delivering fertilisation advice took place across 23 European countries. The stocktake was in the form of a questionnaire, comprising 46 questions. Information was gathered on a large range of factors, including soil analysis methods, along with soil, crop and climatic factors taken into consideration within fertilisation calculations. The questionnaire was completed by experts, who are involved in compiling fertilisation recommendations within their country. Substantial differences exist in the content, format and delivery of fertilisation guidelines across Europe. The barriers, constraints and potential benefits of a harmonised approach to fertilisation across Europe are discussed. The general consensus from all participating countries was that harmonisation of fertilisation guidelines should be increased, but it was unclear in what format this could be achieved. Shared learning in the delivery and format of fertilisation guidelines and mechanisms to adhere to environmental legislation were viewed as being beneficial. However, it would be very difficult, if not impossible, to harmonise all soil test data and fertilisation methodologies at EU level due to diverse soil types and agro-ecosystem influences. Nevertheless, increased future collaboration, especially between neighbouring countries within the same environmental zone, was seen as potentially very beneficial. This study
- Published
- 2023
8. Changes in soil organic matter and soil humic substances following the afforestation of former agricultural lands in the boreal-nemoral ecotone (Latvia)
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Kukuļs, Imants, Kļaviņš, Māris, Nikodemus, Oļģerts, Kasparinskis, Raimonds, and Brūmelis, Guntis
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- 2019
- Full Text
- View/download PDF
9. Stocktake study of current fertilisation recommendations across Europe and discussion towards a more harmonised approach
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Higgins, Suzanne, primary, Keesstra, Saskia, additional, Kadziuliene, Žydrė, additional, Jordan‐Meille, Lionel, additional, Wall, David, additional, Trinchera, Alessandra, additional, Spiegel, Heide, additional, Sandén, Taru, additional, Baumgarten, Andreas, additional, Jensen, Johannes Lund, additional, Hirte, Juliane, additional, Liebisch, Frank, additional, Klages, Susanne, additional, Löw, Philipp, additional, Kuka, Katrin, additional, De Boever, Maarten, additional, D'Haene, Karoline, additional, Madenoglu, Sevinc, additional, Özcan, Hesna, additional, Vervuurt, Wieke, additional, Haan, Janjo de, additional, Geel, Willem van, additional, Stenberg, Bo, additional, Denoroy, Pascal, additional, Mihelič, Rok, additional, Astover, Alar, additional, Mano, Raquel, additional, Sempiterno, Cristina, additional, Calouro, Fatima, additional, Valboa, Giuseppe, additional, Aronsson, Helena, additional, Krogstad, Tore, additional, Torma, Stanislav, additional, Gabriel, Jose, additional, Laszlo, Peter, additional, Borchard, Nils, additional, Adamczyk, Bartosz, additional, Jacobs, Anna, additional, Jurga, Beata, additional, Smrezak, Bożena, additional, Huyghebaert, Bruno, additional, Abras, Morgan, additional, Kasparinskis, Raimonds, additional, Mason, Eloise, additional, and Chenu, Claire, additional
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- 2023
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10. National soil data in EU countries, where do we stand?
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Cornu, Sophie, primary, Keesstra, Saskia, additional, Bispo, Antonio, additional, Fantappie, Maria, additional, van Egmond, Fenny, additional, Smreczak, Bozena, additional, Wawer, Rafał, additional, Pavlů, Lenka, additional, Sobocká, Jaroslava, additional, Bakacsi, Zsófia, additional, Farkas‐Iványi, Kinga, additional, Molnár, Sándor, additional, Møller, Anders Bjørn, additional, Madenoglu, Sevinc, additional, Feiziene, Dalia, additional, Oorts, Katrien, additional, Schneider, Florian, additional, Gonçalves, Maria da Conceição, additional, Mano, Raquel, additional, Garland, Gina, additional, Skalský, Rastislav, additional, O'Sullivan, Lilian, additional, Kasparinskis, Raimonds, additional, and Chenu, Claire, additional
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- 2023
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11. Effects of afforestation of agricultural land with grey alder (Alnus incana (L.) Moench) on soil chemical properties, comparing two contrasting soil groups
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Nikodemus, Oļģerts, Kaupe, Dārta, Kukuļs, Imants, Brūmelis, Guntis, Kasparinskis, Raimonds, Dauškane, Iluta, and Treimane, Agita
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- 2020
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12. National soil data in EU countries, where do we stand?
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Cornu, Sophie, Keesstra, Saskia, Bispo, Antonio, Fantappie, Maria, van Egmond, Fenny, Smreczak, Bozena, Wawer, Rafał, Pavlů, Lenka, Sobocká, Jaroslava, Bakacsi, Zsófia, Farkas-Iványi, Kinga, Molnár, Sándor, Møller, Anders Bjørn, Madenoglu, Sevinc, Feiziene, Dalia, Oorts, Katrien, Schneider, Florian, da Conceição Gonçalves, Maria, Mano, Raquel, Garland, Gina, Skalský, Rastislav, O'Sullivan, Lilian, Kasparinskis, Raimonds, Chenu, Claire, Cornu, Sophie, Keesstra, Saskia, Bispo, Antonio, Fantappie, Maria, van Egmond, Fenny, Smreczak, Bozena, Wawer, Rafał, Pavlů, Lenka, Sobocká, Jaroslava, Bakacsi, Zsófia, Farkas-Iványi, Kinga, Molnár, Sándor, Møller, Anders Bjørn, Madenoglu, Sevinc, Feiziene, Dalia, Oorts, Katrien, Schneider, Florian, da Conceição Gonçalves, Maria, Mano, Raquel, Garland, Gina, Skalský, Rastislav, O'Sullivan, Lilian, Kasparinskis, Raimonds, and Chenu, Claire
- Abstract
At the European scale, soil characteristics are needed to evaluate soil quality, soil health and soil-based ecosystem services in the context of the European Green Deal. While some soil databases exist at the European scale, a much larger wealth of data is present in individual European countries, allowing a more detailed soil assessment. There is thus an urgent and crucial need to combine these data at the European scale. In the frame of a large European Joint Programme on agricultural soils launched by the European Commission, a survey was conducted in the spring of 2020, in the 24 European participating countries to assess the existing soil data sources, focusing on agricultural soils. The survey will become a contribution to the European Soil Observatory, launched in December 2020, which aims to collect metadata of soil databases related to all kind of land uses, including forest and urban soils. Based upon a comprehensive questionnaire, 170 soil databases were identified at local, regional and national scales. Soil parameters were divided into five groups: (1) main soil parameters according to the Global Soil Map specifications; (2) other soil chemical parameters; (3) other physical parameters; (4) other pedological parameters; and (5) soil biological features. A classification based on the environmental zones of Europe was used to distinguish the climatic zones. This survey shows that while most of the main pedological and chemical parameters are included in more than 70% of the country soil databases, water content, contamination with organic pollutants, and biological parameters are the least frequently reported parameters. Such differences will have consequences when developing an EU policy on soil health as proposed under the EU soil strategy for 2023 and using the data to derive soil health indicators. Many differences in the methods used in collecting, preparing, and analysing the soils were found, thus requiring harmonization procedures and more coopera
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- 2023
13. Stocktake study of current fertilisation recommendations across Europe and discussion towards a more harmonised approach
- Author
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Higgins, Suzanne, Keesstra, Saskia D., Kadziuliene, Žydrė, Jordan-Meille, Lionel, Wall, David, Trinchera, Alessandra, Spiegel, Heide, Sandén, Taru, Baumgarten, Andreas, Jensen, Johannes L., Hirte, Juliane, Liebisch, Frank, Klages, Susanne, Löw, Philipp, Kuka, Katrin, De Boever, Maarten, D'Haene, Karoline, Madenoglu, Sevinc, Özcan, Hesna, Vervuurt, Wieke, de Haan, Janjo, van Geel, Willem, Stenberg, Bo, Denoroy, Pascal, Mihelič, Rok, Astover, Alar, Mano, Raquel, Sempiterno, Cristina, Calouro, Fatima, Valboa, Giuseppe, Aronsson, Helena, Krogstad, Tore, Torma, Stanislav, Gabriel, Jose, Laszlo, Peter, Borchard, Nils, Adamczyk, Bartosz, Jacobs, Anna, Jurga, Beata, Smreczak, Bożena, Huyghebaert, Bruno, Abras, Morgan, Kasparinskis, Raimonds, Mason, Eloise, Chenu, Claire, Higgins, Suzanne, Keesstra, Saskia D., Kadziuliene, Žydrė, Jordan-Meille, Lionel, Wall, David, Trinchera, Alessandra, Spiegel, Heide, Sandén, Taru, Baumgarten, Andreas, Jensen, Johannes L., Hirte, Juliane, Liebisch, Frank, Klages, Susanne, Löw, Philipp, Kuka, Katrin, De Boever, Maarten, D'Haene, Karoline, Madenoglu, Sevinc, Özcan, Hesna, Vervuurt, Wieke, de Haan, Janjo, van Geel, Willem, Stenberg, Bo, Denoroy, Pascal, Mihelič, Rok, Astover, Alar, Mano, Raquel, Sempiterno, Cristina, Calouro, Fatima, Valboa, Giuseppe, Aronsson, Helena, Krogstad, Tore, Torma, Stanislav, Gabriel, Jose, Laszlo, Peter, Borchard, Nils, Adamczyk, Bartosz, Jacobs, Anna, Jurga, Beata, Smreczak, Bożena, Huyghebaert, Bruno, Abras, Morgan, Kasparinskis, Raimonds, Mason, Eloise, and Chenu, Claire
- Abstract
The European Commission has set targets for a reduction in nutrient losses by at least 50% and a reduction in fertiliser use by at least 20% by 2030 while ensuring no deterioration in soil fertility. Within the mandate of the European Joint Programme EJP Soil ‘Towards climate-smart sustainable management of agricultural soils’, the objective of this study was to assess current fertilisation practices across Europe and discuss the potential for harmonisation of fertilisation methodologies as a strategy to reduce nutrient loss and overall fertiliser use. A stocktake study of current methods of delivering fertilisation advice took place across 23 European countries. The stocktake was in the form of a questionnaire, comprising 46 questions. Information was gathered on a large range of factors, including soil analysis methods, along with soil, crop and climatic factors taken into consideration within fertilisation calculations. The questionnaire was completed by experts, who are involved in compiling fertilisation recommendations within their country. Substantial differences exist in the content, format and delivery of fertilisation guidelines across Europe. The barriers, constraints and potential benefits of a harmonised approach to fertilisation across Europe are discussed. The general consensus from all participating countries was that harmonisation of fertilisation guidelines should be increased, but it was unclear in what format this could be achieved. Shared learning in the delivery and format of fertilisation guidelines and mechanisms to adhere to environmental legislation were viewed as being beneficial. However, it would be very difficult, if not impossible, to harmonise all soil test data and fertilisation methodologies at EU level due to diverse soil types and agro-ecosystem influences. Nevertheless, increased future collaboration, especially between neighbouring countries within the same environmental zone, was seen as potentially very beneficial. This study
- Published
- 2023
14. Spatial relationships between soil properties and land use change after agricultural land abandonment
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Afanasjeva, Kristine, primary, Kasparinskis, Raimonds, additional, and Nikodemus, Olgerts, additional
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- 2023
- Full Text
- View/download PDF
15. Linking land use and peat soil distribution and properties in agricultural lands of Latvia
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Kasparinskis, Raimonds, primary, Vinogradovs, Ivo, additional, Afanasjeva, Kristīne, additional, Avotiņš, Andris, additional, Dirnēna, Baiba, additional, Kukuļs, Imants, additional, and Nikodemus, Oļģerts, additional
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- 2023
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16. Vegetation changes in boreo-nemoral forest stands depending on soil factors and past land use during an 80 year period of no human impact
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Kokarevica, Ilze, Brumelis, Guntis, Kasparinskis, Raimonds, Rolava, Arta, Nikodemus, Olgerts, Grods, John, and Elferts, Didzis
- Subjects
Forest ecology -- Models ,Natural areas -- Models ,Forest management -- Models ,Earth sciences - Abstract
Information on the long-term changes in plant communities that occur without human interference is limited, due to insufficient studies where vegetation can be resurveyed. In 1912, a strict nature protection reserve, with non-intervention management, was established on Moricsala Island in Latvia, located in the boreo-nemoral forest zone. Prior to establishment of the nature reserve, part of the island area was used for agriculture. The island is now covered almost entirely by forest dominated by Quercus robur L. and Tilia cordata Mill. on sandy soils. Resurvey was conducted in 2011 in 17 plots in which tree layers and the understory vegetation had been described in 1930. The plots were classified into two groups based on tree species composition in 1930 to determine changes in species composition. Differences in understory and tree canopy composition between these groups persisted over the period between the studies, in relation to soil factors and past stand history. Considerable turnover of species occurred, with a decrease of species typical of open habitats and replacement by species typical of nemoral (temperate deciduous) forest plant communities. In the past, Q. robur had likely established in open habitats created by agricultural land use or past fire but is presently not regenerating in the understory. Key words: management, understory vegetation, conservation, succession, regeneration. L'information a propos des changements a long terme qui surviennent dans les communautes vegetales sans intervention humaine est limitee parce qu'il n'y a pas assez d'etudes dans les endroits ou la vegetation peut etre reinventoriee. En 1912, une reserve naturelle integrale, sans intervention d'amenagement, a ete etablie sur l'ile de Moricsala, en Lettonie, situee dans la zone de la foret boreo-nemorale. Anterieurement a l'etablissement de la reserve naturelle, une partie de la superficie de l'ile etait consacree a l'agriculture. L'ile est maintenant presque entierement couverte de foret dominee par Quercus robur L. et Tilia cordata Mill. sur des sols sablonneux. Un nouvel inventaire a ete realise en 2011 dans dix-sept placettes-echantillons ou la strate arborescente et la vegetation de sous-bois avaient ete decrites en 1930. Les placettes-echantillons ont ete classees en deux groupes sur la base de la composition en especes d'arbre en 1930 pour determiner les changements de composition en especes. Les differences entre les deux groupes dans la composition du sous-bois et des arbres du couvert forestier ont persiste durant la periode entre les deux etudes en relation avec les facteurs du sol et l'historique des peuplements. Un renouvellement considerable des especes est survenu; il est caracterise par une diminution des especes typiques des habitats ouverts et leur remplacement par des especes (feuillues temperees) typiques des communautes forestieres nemorales. Dans le passe, Q. robur s'etait vraisemblablement etabli dans des habitats ouverts crees par la pratique de l'agriculture ou des incendies passes, mais presentement il ne se regenere pas dans le sous-bois. [Traduit par la Redaction] Mots-cles: amenagement, vegetation de sous-bois, conservation, succession, regeneration., 1. Introduction In densely populated regions of Europe, the legacies of land use have profoundly affected forest fragmentation and biodiversity (Hermy and Verheyen 2007). In regions where much of the [...]
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- 2016
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17. Soil–vegetation interactions in abandoned farmland within the temperate region of Europe
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Ruskule, Anda, Nikodemus, Oļģerts, Kasparinskis, Raimonds, Prižavoite, Dana, Bojāre, Daina, and Brūmelis, Guntis
- Published
- 2016
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18. The perception of abandoned farmland by local people and experts: Landscape value and perspectives on future land use
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Ruskule, Anda, Nikodemus, Olgerts, Kasparinskis, Raimonds, Bell, Simon, and Urtane, Ilze
- Published
- 2013
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19. Patterns of afforestation on abandoned agriculture land in Latvia
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Ruskule, Anda, Nikodemus, Olǵerts, Kasparinska, Zane, Kasparinskis, Raimonds, and Brūmelis, Guntis
- Published
- 2012
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20. The contribution of the European Society for Soil Conservation (ESSC) to scientific knowledge, education and sustainability
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Dazzi, Carmelo, Cornelis, Wim, Costantini, Edoardo A.C., Dumitru, Mihail, Fullen, Michael A., Gabriels, Donald, Kasparinskis, Raimonds, Kertész, Adam, Lo Papa, Giuseppe, Pérès, Guenola, Rickson, Jane, Rubio, José L., Sholten, Thomas, Theocharopoulos, Sid, and Vasenev, Ivan
- Published
- 2019
- Full Text
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21. Integrating ecosystem services into decision support for management of agroecosystems: Viva Grass tool
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Vinogradovs, Ivo, primary, Villoslada, Miguel, additional, Nikodemus, Oļģerts, additional, Ruskule, Anda, additional, Veidemane, Kristina, additional, Gulbinas, Justas, additional, Morkvenas, Žymantas, additional, Kasparinskis, Raimonds, additional, Sepp, Kalev, additional, Järv, Henri, additional, Klimask, Jaak, additional, Zariņa, Anita, additional, Brūmelis, Guntis, additional, Dotas, Arvydas, additional, and Kryžanauskas, Audrius, additional
- Published
- 2020
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22. Land-use legacies affect Norway spruce Picea abies colonization on abandoned marginal agricultural land in Eastern Baltics
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Rūsiņa, Solvita, primary, Prižavoite, Dana, additional, Nikodemus, Oļģerts, additional, Brūmelis, Guntis, additional, Gustiņa, Lauma, additional, and Kasparinskis, Raimonds, additional
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- 2020
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23. The contribution of the European Society for Soil Conservation (ESSC) to scientific knowledge, education and sustainability
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Rickson, Jane [0000-0001-6624-4073], Pérès, Guénola [0000-0001-9716-0884], Vasenev, Ivan [0000-0001-9127-9569], Dazzi, C., Cornelis, Wim, Costantini, Edoardo A. C., Dumitru, Mihail, Fullen, Michael A., Gabriels, Donald, Kasparinskis, Raimonds, Kertész, Adam, Lo Papa, Giuseppe, Pérès, Guénola, Rickson, Jane, Rubio, José Luis, Sholten, Thomas, Theocharopoulos, Sid. P., Vasenev, Ivan, Rickson, Jane [0000-0001-6624-4073], Pérès, Guénola [0000-0001-9716-0884], Vasenev, Ivan [0000-0001-9127-9569], Dazzi, C., Cornelis, Wim, Costantini, Edoardo A. C., Dumitru, Mihail, Fullen, Michael A., Gabriels, Donald, Kasparinskis, Raimonds, Kertész, Adam, Lo Papa, Giuseppe, Pérès, Guénola, Rickson, Jane, Rubio, José Luis, Sholten, Thomas, Theocharopoulos, Sid. P., and Vasenev, Ivan
- Abstract
Soil is an integral component of the global environmental system which supports the quality and diversity of terrestrial life on Earth. Therefore, it is vital to consider the processes and impacts of soil degradation on society, especially on the provision of environmental goods and services, including food security and climate change mitigation and adaptation. Scientific societies devoted to soil science play significant roles in reducing soil degradation and promoting soil conservation by advancing scientific knowledge, education and environmental sustainability. The ESSC was founded on 4 November 1988, with the aims to: 1. Support research on soil degradation, soil protection and soil and water conservation. 2. Provide a network for the exchange of knowledge about soil degradation processes and soil conservation research and practises. 3. Produce publications on major issues relating to soil degradation and soil and water conservation. 4. Advise regulators and policy-makers on soil issues, especially soil degradation, protection and conservation. The societal challenges that can be addressed through better soil protection, advancing knowledge and scientific approaches to soil protection and sustainable management, mean the ESSC embraces the on-going development, application, review and constructive criticism of highly innovative scientific soil conservation methods. In this context, the ESSC analyses and publicizes the roles and functions of soil in natural and human-modified systems and the functional optimization of soils to ensure sustainable environmental protection. “The thin layer of soil that forms a patchy covering over the continents controls our own existence and that of every other animal of the land” (Rachel Carson (1962) in ‘Silent Spring’).
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- 2019
24. The impact of wood-derived biochar on the survival of Trichoderma spp. and growth of Secale cereale L. in sandy soil
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Vecstaudza, Dagnija, Grantina-Ievina, Lelde, Makarenkova, Galina, Kasparinskis, Raimonds, Selga, Turs, Vilhelmine Steinberga, Stelmahere, Solvita, Steiner, Christoph, and Muter, Olga
- Subjects
food and beverages ,complex mixtures - Abstract
The interrelations between biochar (BC) and soil microbiota remain unclear. Addressing this will be important for understanding how BC affects soil properties and plant growth. Here, we tested the influence of wood-derived BC with immobilised Trichoderma viride on rye Secale cereale L. in sandy soil. We found that the addition of BC leads to a significant (P 2+ and Mg2+, as well as a decrease in the concentration of Al3+, irrespective of BC particle size and the presence of T. viride. Plant growth was stimulated in the presence of small (Trichoderma spp., was tested by cultivation-dependent methods and qPCR. Both of these approaches revealed a positive effect of BC on the survival of Trichoderma spp. under the tested conditions, especially in the presence of a small particle size fraction.
- Published
- 2018
- Full Text
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25. Soil sequences atlas. 2
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Glina, Bartłomiej, Mendyk, Łukasz, Bogacz, Adam, OrzechowskI, Mirosław, Sowiński, Paweł, Smólczyński, Sławomir, Kalisz, Barbara, Świtoniak, Marcin, Hulisz, Piotr, Reintam, Endla, Astover, Alar, Shanskiy, Merrit, Kõlli, Raimo, Vaisvalavičius, Rimantas, Volungevičius, Jonas, Buivydaitė, Vanda, Gregorauskienė, Virgilija, Sewerniak, Piotr, Jankowski, Michał, Dąbrowski, Michał, Jasińska, Justyna, Pollmann, Thomas, Junge, Birte, Giani, Luise, Penížek, Vít, Zádorová, Tereza, Němeček, Karel, Novák, Tibor József, Mester, Tamás, Balla, Dániel, Szabó, György, Karklins, Aldis, Kasparinskis, Raimonds, Krievans, Maris, Jaworski, Tomasz, Pietrzak, Damian, Pindral, Sylwia, Saksa, Martin, Skalský, Rastislav, Czigány, Szabolcs, Fábián, Szabolcs Ákos, Nagy, Gábor, Repe, Blaž, Uzarowicz, Łukasz, Świtoniak, Marcin (editor), and Charzyński, Przemysław (editor)
- Subjects
atlases ,atlased ,Kesk-Euroopa ,Central Europe ,soils ,mullad - Abstract
Täistekst This is the second book in the series of Soil Sequence Atlases. The first volume was published in 2014. Main pedogeographic features are presented in the form of sequences to give a comprehensive picture of soils - their genesis and correlations with the environment in typical landscapes of Central Europe from Estonia furthest north, through Latvia, Lithuania, Poland, Germany, Czechia, Slovakia and Hungary to the southernmost Slovenia. Soils of natural landscapes - loess and sand (continental dunes) - are presented, as well as those of plains of various origin, karst lands, low mountains, and anthropically modified soils. Each chapter presents soil profiles supplemented by landscape information and basic analytical data. Then, genetic interpretations of soil properties related to soil forming agents are given as schematic catenas. When one factor changes while the others are more or less stable, the soil sequence can be recognised. Depending on the dominant soil-forming factor affecting repeated soil patterns, different types can be distinguished. Chapters are arranged roughly in accordance with the main soil-forming process in sequences, and referring to the WRB key (peat formation, vertic and gleyic process, podzolisation, humus accumulation, clay illuviation), with one small exception - the Technosols have been placed at the end of book. The main objective of this book is to present the diversity of relations between soil and landscape, climate, hydrology and human relations, and to present interpretations reflecting the World Reference Base for Soil Resources (2015) classification with comments on the choice of qualifiers. Sixteen Reference Soil Groups are featured, and represented by 67 soil profiles. The secondary objective is pedological education. One of the aims of soil science education is to explain to students the relations between landscape and soil cover. The patterns of soil units within landscapes are to some extent predictable. The collected data is intended as a useful educational tool in teaching soil science, supporting understanding of the reasons for the variability of soil cover, and also as a WRB classification guideline. The Atlas was developed as part of the EU Erasmus+ FACES project (Freely Accessible Central European Soil). Marcin Šwitoniak, Przemyslaw Charzynski
- Published
- 2018
26. Modeling the mobility of glyphosate from two contrasting agricultural soils in laboratory column experiments
- Author
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Berzins, Andrejs, primary, Jansons, Martins, additional, Kalneniece, Kristine, additional, Shvirksts, Karlis, additional, Afanasjeva, Kristine, additional, Kasparinskis, Raimonds, additional, Grube, Mara, additional, Bartkevics, Vadims, additional, and Muter, Olga, additional
- Published
- 2019
- Full Text
- View/download PDF
27. Effects of stand-level and landscape factors on understorey plant community traits in broad-leaved forest of the boreo-nemoral zone in Latvia
- Author
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Brūmelis, Guntis, primary, Artistova, Anna, additional, Elferts, Didzis, additional, Kasparinskis, Raimonds, additional, Nikodemus, Oļģerts, additional, Amatniece, Vita, additional, and Rendenieks, Zigmārs, additional
- Published
- 2019
- Full Text
- View/download PDF
28. Humus forms, carbon stock and properties of soil organic matter in forests formed on dry mineral soils in Latvia.
- Author
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Kukuļs, Imants, Nikodemus, Oļģerts, Kasparinskis, Raimonds, and Žīgure, Zane
- Subjects
HUMUS ,SOIL mineralogy ,TROPICAL dry forests ,FOREST soils ,SOIL classification ,SOIL sampling - Abstract
Copyright of Estonian Journal of Earth Sciences is the property of Teaduste Akadeemia Kirjastus and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
29. A multitiered approach for grassland ecosystem services mapping and assessment: The Viva Grass tool
- Author
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Villoslada, Miguel, primary, Vinogradovs, Ivo, additional, Ruskule, Anda, additional, Veidemane, Kristina, additional, Nikodemus, Olgerts, additional, Kasparinskis, Raimonds, additional, Sepp, Kalev, additional, and Gulbinas, Justas, additional
- Published
- 2018
- Full Text
- View/download PDF
30. Supplementary material 1 from: Villoslada M, Vinogradovs I, Ruskule A, Veidemane K, Nikodemus O, Kasparinskis R, Sepp K, Gulbinas J (2018) A multitiered approach for grassland ecosystem services mapping and assessment: The Viva Grass tool. One Ecosystem 3: e25380. https://doi.org/10.3897/oneeco.3.e25380
- Author
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Villoslada, Miguel, primary, Vinogradovs, Ivo, additional, Ruskule, Anda, additional, Veidemane, Kristina, additional, Nikodemus, Olgerts, additional, Kasparinskis, Raimonds, additional, Sepp, Kalev, additional, and Gulbinas, Justas, additional
- Published
- 2018
- Full Text
- View/download PDF
31. The impact of wood-derived biochar on the survival of Trichoderma spp. and growth of Secale cereale L. in sandy soil
- Author
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Vecstaudza, Dagnija, primary, Grantina-Ievina, Lelde, additional, Makarenkova, Galina, additional, Kasparinskis, Raimonds, additional, Selga, Turs, additional, Steinberga, Vilhelmine, additional, Stelmahere, Solvita, additional, Steiner, Christoph, additional, and Muter, Olga, additional
- Published
- 2018
- Full Text
- View/download PDF
32. Wooden biochar as a carrier for endophytic isolates
- Author
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Vecstaudza, Dagnija, primary, Senkovs, Maris, additional, Nikolajeva, Vizma, additional, Kasparinskis, Raimonds, additional, and Muter, Olga, additional
- Published
- 2017
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33. The impact of wood-derived biochar on the survival of <italic>Trichoderma</italic> spp. and growth of <italic>Secale cereale</italic> L. in sandy soil.
- Author
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Vecstaudza, Dagnija, Grantina-Ievina, Lelde, Makarenkova, Galina, Kasparinskis, Raimonds, Selga, Turs, Steinberga, Vilhelmine, Stelmahere, Solvita, Steiner, Christoph, and Muter, Olga
- Subjects
RYE ,PLANT growth ,SANDY soils ,FUNGI diversity ,SOIL fungi ,BIOCHAR - Abstract
The interrelations between biochar (BC) and soil microbiota remain unclear. Addressing this will be important for understanding how BC affects soil properties and plant growth. Here, we tested the influence of wood-derived BC with immobilised
Trichoderma viride on ryeSecale cereale L. in sandy soil. We found that the addition of BC leads to a significant (P < .05) increase in the concentrations of Ca2+ and Mg2+ , as well as a decrease in the concentration of Al3+ , irrespective of BC particle size and the presence ofT. viride . Plant growth was stimulated in the presence of small (<2 mm) particle-sized BC. Fungal diversity, as well as an absolute and relative abundance ofTrichoderma spp., was tested by cultivation-dependent methods and qPCR. Both of these approaches revealed a positive effect of BC on the survival ofTrichoderma spp. under the tested conditions, especially in the presence of a small particle size fraction. [ABSTRACT FROM AUTHOR]- Published
- 2018
- Full Text
- View/download PDF
34. Tree Species Establishment in Urban Forest in Relation to Vegetation Composition, Tree Canopy Gap Area and Soil Factors
- Author
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Jankovska, Ilze, primary, Brūmelis, Guntis, additional, Nikodemus, Oļģerts, additional, Kasparinskis, Raimonds, additional, Amatniece, Vita, additional, and Straupmanis, Gustavs, additional
- Published
- 2015
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- View/download PDF
35. Effect of biochar and Trichoderma application on fungal diversity and growth of Zea mays in a sandy loam soil.
- Author
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Muter, Olga, Grantina-Ievina, Lelde, Makarenkova, Galina, Vecstaudza, Dagnija, Strikauska, Silvija, Selga, Turs, Kasparinskis, Raimonds, Stelmahere, Solvita, and Steiner, Christoph
- Subjects
BIOCHAR ,CARBON sequestration ,SOIL amendments ,TRICHODERMA ,PLANT nutrients - Abstract
Application of biochar (BC) to agricultural soils has raised global interest. BC could serve as a carrier for immobilization of beneficial microorganisms. Effect of straw-derived BC (50 t ha
-1 ) with and without immobilized Trichoderma viride on the growth of maize in a sandy loam soil in Zemgale region (Latvia) was studied in a 128-day mini-field trial. Four treatment types were compared, i.e., without amendments [C], biochar [BC], biochar with T. viride [BCT], and T. viride [T]. The highest amount of Trichoderma spp. DNA was detected by qPCR in [BCT]. The obtained results demonstrated high heterogenity of soil samples. Addition of straw-derived BC with immobilized T. viride to sandy loam soil promoted survival of Trichoderma spp. and significantly (p < 0.05) increased maize growth. The highest germination index, i.e., 87.5%, after 14 days was observed in the [BCT] treatment. These results provide new methods for the optimization of cultivation conditions for maize in Northern latitudes. [ABSTRACT FROM AUTHOR]- Published
- 2017
- Full Text
- View/download PDF
36. Effect of soil and canopy factors on vegetation of Quercus robur woodland in the boreo-nemoral zone: A plant-trait based approach
- Author
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Ikauniece, Sandra, primary, Brūmelis, Guntis, additional, Kasparinskis, Raimonds, additional, Nikodemus, Olģerts, additional, Straupe, Inga, additional, and Zariņš, Juris, additional
- Published
- 2013
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37. Influence of afforestation on soil genesis, morphology and properties in glacial till deposits
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Nikodemus, Olgerts, primary, Kasparinskis, Raimonds, additional, and Kukuls, Imants, additional
- Published
- 2013
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38. Leaching of Contamination from Stabilization/Solidification Remediated Soils of Different Texture
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Burlakovs, Juris, primary, Kasparinskis, Raimonds, additional, and Klavins, Maris, additional
- Published
- 2012
- Full Text
- View/download PDF
39. Monitoring seasonal changes in microbial populations of spruce forest soil of the Northern Temperate Zone.
- Author
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Grantina, Lelde, Bondare, Gunta, Janberga, Anna, Tabors, Guntis, Kasparinskis, Raimonds, Nikolajeva, Vizma, and Muiznieks, Indrikis
- Subjects
SOIL microbiology ,SPRUCE ,FORESTS & forestry ,FILAMENTOUS fungi ,BIODIVERSITY ,DNA ,NORWAY spruce - Abstract
Copyright of Estonian Journal of Ecology is the property of Teaduste Akadeemia Kirjastus and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2012
- Full Text
- View/download PDF
40. Influence of environmental factors on the spatial distribution and diversity of forest soil in Latvia.
- Author
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Kasparinskis, Raimonds and Nikodemus, Olgerts
- Subjects
- *
QUATERNARY forms , *QUATERNARY Period , *LINEAR statistical models , *SEDIMENTS - Abstract
This study was carried out to determine the spatial relationships between environmental factors (Quaternary deposits, topographical situation, land cover, forest site types, tree species, soil texture) and soil groups, and their prefix qualifiers (according to the international Food and Agricultural Organization soil classification system World Reference Base for Soil Resources [FAO WRB]). The results show that it is possible to establish relationships between the distribution of environmental factors and soil groups by applying the generalized linear models in data statistical analysis, using the R 2.11.1 software for processing data from 113 sampling plots throughout the forest territory of Latvia. A very high diversity of soil groups in a relatively similar geological structure was revealed. For various reasons there is not always close relationship between the soil group, their prefix qualifiers and Quaternary deposits, as well as between forest site types, the dominant tree species and specific soil group and its prefix qualifiers. Close correlation was established between Quaternary deposits, forest site types, dominant tree species and soil groups within nutrient-poor sediments and very rich deposits containing free carbonates. No significant relationship was detected between the CORINE Land Cover 2005 classes, topographical situation and soil group. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
41. A multitiered approach for grassland ecosystem services mapping and assessment: The Viva Grass tool
- Author
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Villoslada, Miguel, Vinogradovs, Ivo, Ruskule, Anda, Veidemane, Kristina, Nikodemus, Olgerts, Kasparinskis, Raimonds, Sepp, Kalev, and Gulbinas, Justas
- Subjects
tiered approach ,media_common.quotation_subject ,0211 other engineering and technologies ,02 engineering and technology ,010501 environmental sciences ,01 natural sciences ,Grassland ,Adaptability ,Ecosystem services ,Tier 2 network ,lcsh:QH540-549.5 ,Earth and Planetary Sciences (miscellaneous) ,Ecosystem ,0105 earth and related environmental sciences ,Nature and Landscape Conservation ,media_common ,2. Zero hunger ,Integrated business planning ,geography ,geography.geographical_feature_category ,Ecology ,business.industry ,Environmental resource management ,grasslands ,021107 urban & regional planning ,integrated planning ,15. Life on land ,Agriculture ,lcsh:Ecology ,business ,Decision analysis - Abstract
Throughout the second half of the 20th Century, the area of semi-natural grasslands in the Baltic States decreased substantially, due to agricultural abandonment in some areas and intensification in more productive soil types. In order to halt the loss of biodiversity and ecosystem services provided by grasslands, the LIFE+ programme funded project, LIFE Viva Grass, aims at developing an integrated planning tool that will support ecosystem-based planning and sustainable grassland management. LIFE Viva Grass integrated planning tool is spatially explicit and allows the user to assess the provision and trade-offs of grassland ecosystem services within eight project case study areas in Estonia, Latvia and Lithuania. In order to ensure methodological adaptability, the structure of the LIFE Viva Grass integrated planning tool follows the framework of the tiered approach. In a multi-tier system, each consecutive tier entails an increase in data requirements, methodological complexity or both. The present paper outlines the adaptation of the tiered approach for mapping and assessing ecosystem services provided by grasslands in the Baltic States. The first tier corresponds to a deliberative decision process: The matrix approach is used to assess the potential supply of grassland ecosystem services based on expert estimations. Expert values are subsequently transferred to grassland units and therefore made spatially explicit. The data collected in the first tier was further enhanced through a Principal Components Analysis (PCA) in order to explore ES bundles in tier 2. In the third tier, Multi-Criteria Decision Analysis is used to target specific policy questions.
- Full Text
- View/download PDF
42. CARBON ACCUMULATION AND HUMIFICATION IN SOILS OF ABANDONED FORMER AGRICULTURAL LANDS IN THE HEMIBOREAL ZONE.
- Author
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KUKUĻS, Imants, NIKODEMUS, Oļģerts, KASPARINSKIS, Raimonds, GRĀVELSIŅA, Santa, and PRIŽAVOITE, Dana
- Subjects
- *
AFFORESTATION , *CARBON in soils , *HUMIFICATION , *FARM research , *LAND use - Abstract
Abandonment of the agricultural land is a common, topical problem in many post-soviet countries, including Latvia. These changes impact nutrient cycling, soil properties. The results of the study of abandoned agricultural lands in the hemiboreal zone in Latvia validated the theory that after afforestation, in long term, soil accumulates organic carbon (Corg). During the first 30 years of abandonment, Corg content in mineral topsoil does not present a significant increase; it varies from 42 to 43 t ha-1. More rapid Corg content increase was observed in the territories where the age of the forest land had exceeded 30 years; the mean Corg content in 31-60 years old forest stands reached 51.3 t ha-1. The Corg content which has been accumulated in litter increases in older forest sites. In spruce and mixed forest stands, where age of the forest had exceeded 60 years, the mean Corg content in litter was 17.8 t ha-1. Afforestation also changes the content of humic substances and the humification rate in the mineral topsoil. In agricultural lands C of humic substances (Chs) constituted 65% of total topsoil Corg. In sites where age of the forest land was more than 30 years Chs exceeded 75% of total Corg amount. [ABSTRACT FROM AUTHOR]
- Published
- 2015
43. Latvijas mūsdienu klimata ekstrēmi: ļoti spēcīgu pērkona negaisa gadījumu analīze
- Author
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Galakrodznieks, Jānis, Kasparinskis, Raimonds, and Latvijas Universitāte. Ģeogrāfijas un Zemes zinātņu fakultāte
- Subjects
Ģeogrāfija ,pērkona negaiss ,principālā komponentanalīze ,attālinātie novērojumi ,faktiskie novērojumi ,Pīrsona korelācijas koeficients - Abstract
Bakalaura darba ietvaros tiek pētīti faktori, kas izraisa un veicina ļoti stipru pērkona negaisu veidošanos un intensificēšanos. Bakalaura darba mērķis ir izvērtēt ļoti spēcīgu pērkona negaisu veidošanās faktorus Latvijā 6 gadu laikā, lai konstatētu iespējamās sakarības starp ļoti stipru pērkona negaisa veidošanās faktorus raksturojošus un intensitātes rādītājiem. Lai sasniegtu bakalaura darba mērķi, izmantoti parametri no Dr.geogr. Zanitas Avotnieces disertācijas ietvaros radītās datubāzes, kurā apkopoti pērkona negaisu gadījumi no 2009. līdz 2015. gadam, meteoroloģisko staciju faktiskajiem novērojumiem un skaitlisko prognožu modeļu reanalīzēm un veikta to principiālā komponentanalīze un parametru savstarpējo sakarību meklēšana. Bakalaura darba rezultāti liecina par 3 cieši saistītām parametru grupām. Konstatētas 26 savstarpējās lineāras sakarības starp parametriem, kas dod ierosinājumus turpmākiem šo sakarību pētījumiem., Factors that cause and support very severe thunderstorm formation and intensification are investigated within this bachelor’s thesis. The goal of the thesis is to evaluate very severe thunderstorm formation factors over Latvia in 6-year period to identify possible relationships between thunderstorm formation factor and intensity indicators. This goal is reached through the use of parameters from database, developed by Dr.geogr. Zanita Avotniece for dissertation thesis, that compiles thunderstorm cases from 2009 to 2015, as well as parameters from weather station observations and numerical weather prediction model reanalyses and performing principal component analysis as well as searching for bivariate relationships between parameters. The results of the thesis suggest 3 closely linked parameter groups. 26 linear interrelationships between parameters were found, thus providing clues for further investigation of these relationships.
- Published
- 2021
44. Augsnes virsējo horizontu ķīmiskais sastāvs priežu mežaudzēs Latvijā
- Author
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Bondars, Dmitrijs, Kasparinskis, Raimonds, and Latvijas Universitāte. Ģeogrāfijas un Zemes zinātņu fakultāte
- Subjects
Vides zinātne ,telpiskā izplatība ,Latvija ,augsnes ķīmiskās īpašības ,minerālās virskārtas horizonts - Abstract
Augsnes ķīmisko īpašību noteikšana ir svarīga, jo tieši tā ietekmē augu izplatību un spēju baroties un augt. Bakalaura darba mērķis ir noskaidrot C, N, P, apmaiņas katjonu (Na+, Mg2+, K+, Ca2+, Al3+, Fe3+, Mn2+) koncentrāciju un augsnes minerālās virskārtas pH reakciju Latvijas teritorijas augsnēs. Darbā ir aprakstītas nosakāmo ķīmisko elementu īpašības un ietekmes uz augsni un augošiem tajā augiem. Darbs sastāv no četrām daļām – literatūras apskata, pētījuma materiāliem un metodēm, rezultātu analīzes un secinājumiem. Literatūras apraksts ir sadalīts trīs nodaļās, kas ietver sevī augsnes kvalitāti ietekmējošos faktorus, augsnes ķīmiskās īpašības un apraksts par atmosfēras piesārņojumu un tā monitoringu, izmantojot augsni. Otrajā daļā ir aprakstītas pētījuma metodes un materiāli. Trešajā daļā ir aprakstītas izveidotās kartes, salīdzinātas tās ar 2017. gada nedzīvās zemsegas horizonta (O) ķīmisko elementu izplatības kartēm un noteikti iespējamie nosakāmo ķīmisko elementu izplatības cēloņi. Darbs sastāv no 28 attēliem, 2 tabulām un 2 pielikumiem. Pētījums parāda, ka minerālās virskārtas horizonta ķīmisko elementu saturs ir zemāks nekā nedzīvās zemsegas (O) horizontā, taču kopējā izplatība norāda uz to, ka uzkrāšanās tendence salīdzināmajos horizontos gandrīz visos gadījumos ir līdzīga. Tiek parādītas galvenās vietas ar ķīmisko elementu augstākām vērtībām, tāpēc minerālās virskārtas horizonts arī ir pieļaujams izmantošanai vides monitorigā., The determination of the chemical properties of the soil is important because it directly affects the spread of plants and their ability to feed and grow. The aim of the bachelor thesis is to clarify the concentration of C, N, P, exchange cations (Na+, Mg2+, K+, Ca2+, Al3+, Fe3+, Mn2+) and the pH of the soil mineral surface in the soils of the territory of Latvia. The Bachelors thesis has examined the properties and impacts of the chemical elements on the soil and on growing in it plants. The Bachelors thesis consists of four parts: literature survey, study materials and methods, analysis of the results and conclusion. The description of the literature is divided into three chapters, which include factors affecting soil quality, the chemical properties of the soil and a description of atmospheric pollution and its monitoring using soil. The second part describes the methods and materials of the study. The third part reviews the established maps, comparing them with the maps of the chemical elements of the organic horizon (O) in 2017 and identifying possible causes of the spread of the chemical elements. The Bachelors thesis consists of 28 images, 2 tables and 2 attachments. The study shows that the chemical elements of the mineral surface horizon are lower than those in organic (O) horizon, but the overall distribution indicates that the trend of accumulation on comparable horizons is similar in almost all cases. The main sites with higher values of chemical elements are displayed, so the mineral surface horizon is also allowed for use in environmental monitoring.
- Published
- 2021
45. Meža ugunsbīstamības prognozēšanas metožu salīdzinājums un piemērotība Latvijas apstākļiem
- Author
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Hofmanis, Nauris, Kasparinskis, Raimonds, and Latvijas Universitāte. Ģeogrāfijas un Zemes zinātņu fakultāte
- Subjects
Ģeogrāfija ,ugunsbīstamība ,meža ugunsgrēks ,Ņesterova metode ,Kanādas mežu ugunsgrēku laikapstākļu indekss ,prognozēšana - Abstract
Bakalaura darba “Meža ugunsbīstamības prognozēšanas metožu salīdzinājums un piemērotība Latvijas apstākļiem” mērķis ir noteikt Latvijas apstākļiem atbilstošāko mežu ugunsbīstamības prognozēšanas metodi. Darbā pētīta meža ugunsapsardzības sistēma Latvijā un salīdzināta šobrīd Latvijas, Vides, ģeoloģijas un meteoroloģijas centrā izmantotā Ņesterova un citās valstīs par efektīvu atzītā Kanādas mežu ugunsgrēku laikapstākļu indeksa metožu lietderība prognozējot meža ugunsbīstamību Latvijas apstākļos. Pētījuma rezultāti liecina, ka mēnešu ugunsbīstamības tendences vienlīdz labi prognozē abas aplūkotās metodes. Tomēr 2019. gadā faktiski reģistrētajiem ugunsgrēkiem augstākās ugunsbīstamības vērtības, atbilstoši ugunsbīstamības klasēm, nosaka Kanādas mežu ugunsgrēku laikapstākļu indekss., The aim of the bachelor`s thesis “Comparison and suitability of methods to forecast forest fires in Latvia” is to determine the most suitable method for forecasting forest fire hazards for Latvian conditions. The author analyzed the forest fire protection system of Latvia and compared currently in use by Latvian Environment, Geology and Meteorology Centre Nesterov method and in other countries recognized as effective Canadian Forest Fire Weather Index utility to forecast forest fires in Latvian conditions. The research results show that both used methods forecasted monthly fire danger trends equally good. However, the highest fire danger values for fires registered in 2019, accordingly to fire danger classes, are determined by the Canadian Forest Fire Weather Index.
- Published
- 2021
46. Ilggadīgo zālāju augšņu un to īpašību raksturojums z/s 'Sita' un z/s 'Stirnas'
- Author
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Kļavinskis, Dainis, Kasparinskis, Raimonds, and Latvijas Universitāte. Ģeogrāfijas un Zemes zinātņu fakultāte
- Subjects
Ģeogrāfija ,zālāji ,augsnes veidošanās procesi ,augsnes kartēšana ,augsni ietekmējoši faktori ,augsnes auglība - Abstract
Pēdējo gadu laikā Latvijā, tāpat kā visā Eiropā strauji samazinās dabīgo un daļēji dabīgo zālāju platības. Zālāju kvalitāte un izplatība ir atkarīga no augsnēm uz kurām tie sastopami, tādēļ, ir svarīgi izzināt augsni ietekmējošos faktorus un īpašības, lai būtu iespējams izstrādāt ieteikumus zālāju ilgtspējīgai apsaimniekošanai. Augsnes faktorus ietekmē reljefs, mitruma apstākļi, kā arī cilvēku antropogēnā darbība. Bakalaura darba mērķis ir noskaidrot augšņu un to īpašību ģeogrāfiskās likumsakarības saistībā ar dabas faktoriem un cilvēka saimniecisko darbību ilggadīgajos zālājos lokālā mērogā Z/S „Sita” un Z/S “Stirnas”, lai izstrādātu rekomendācijas zālāju ilgtspējīgai apsaimniekošanai. Pētījumā lokālā mērogā konstatēta relatīvi liela augšņu daudzveidība, ko nosaka augsnes veidošanās procesi, turklāt, fizikālo un ķīmisko īpašību mainību ietekmē augsnes cilmiezis, novietojums reljefā, mitruma apstākļi, ka arī cilvēka saimnieciskā darbība. Augsnes virskārtā ķīmiskās īpašibas ir daudz atšķirīgākas nekā cilmiezī, ko nosaka ārējo faktoru ietekme., In recent years, areas of the natural and semi-natural grasslasnds in Latvia and accross the Europe has been swiftly decreasing. The quality and prevelance of grasslands depends on the soil on which it grows. It is important to know the factors and properties that affects the soil. Afterwards recommendations can be made for the sustainable management of grasslands. Soil factors are affected by topography, moisture conditions and by anthropogenic impacts. The objective of the bachelors thesis is to find out geographical relation between human anthropogenic and natural factors in permanent grasslands of farms "Sita" and "Stirnas" in order to develop recomenndations for sustainable management of grasslands. The research found relatively large soil diversity, which are determined by soil formation processes, besides physical and chemical soil properties are affected by soil parent material, topography, moisture conditions and human anthropogenic activity. The chemical properties of soil top horizon are much more varied than soil parent material, as a result of external factors.
- Published
- 2019
47. Zālāju biomasa un tās noteikšanas iespējas Vidzemes augstienes centrālajā daļā
- Author
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Pavlovska, Maija, Kasparinskis, Raimonds, and Latvijas Universitāte. Ģeogrāfijas un Zemes zinātņu fakultāte
- Subjects
zālāju biomasa ,Vides zinātne ,zemes kvalitatīvā vērtība ,augsnes īpašības ,zālāju ekosistēmu pakalpojumi ,zālāju klases - Abstract
Augsnes nosaka zālāju telpisko izplatību, to īpašības ir viens no galvenajiem zālāju kvalitāti un ilgtspējīgu apsaimniekošanu ietekmējošiem faktoriem. Zālāju ekosistēmas nodrošina vitāli svarīgus ekosistēmu pakalpojumus, kuri atkarīgi no augsnes īpašībām. Zālāju biomasa ir viens no pakalpojumiem, kas ir relatīvi maz pētīts, bet tam ir milzīgs pielietošanas potenciāls ne tikai lauksaimniecībā kā lopbarībai, bet arī kā alternatīvajam bioenerģijas ieguves veidam. Pētījuma mērķis ir noskaidrot zālāju biomasas telpiskās izplatības noteikšanas un prognozēšanas iespējas, izmantojot zālāju klases un augsnes faktoru nozīmi, lai šo informāciju integrētu zālāju ekosistēmu biomasas vērtēšanā, plānošanā un ilgtspējīgā apsaimniekošanā. Maģistra darbā apkopota literatūra par zālāju ekosistēmām, to sniegtajiem pakalpojumiem, biomasu un tās raksturojumu, kā arī augsnes faktoriem un indikatoriem biomasas nodrošināšanā. Atslēgas vārdi: zālāju ekosistēmu pakalpojumi, zālāju biomasa, zālāju klases, zemes kvalitatīvā vērtība, augsnes īpašības, tālizpētes metodes., Soil determines spatial distribution of grasslands. Quality and sustainable management of grasslands are influenced by soil properties. Grassland ecosystems provide vital ecosystem services that depend on soil properties. Above-ground biomass is one of the ecosystem services that has not been widely studied, but it has high potential not only in agriculture, but also as an alternative resource for bio-energy production. The aim of the master thesis is to identify the possibilities for determining and predicting the spatial distribution of grassland biomass using soil factors to integrate this information into biomass assessment, planning and sustainable management of grassland ecosystems. The master thesis summarizes the literature on grassland ecosystems, their services, above-ground biomass and its properties, as well as soil factors and indicators providing ecosystem services. Keywords: grassland ecosystem services, grassland biomass, grassland classes, land quality value, soil properties, remote sensing methods.
- Published
- 2019
48. Podzolēšanās procesa raksturojums dažāda vecuma meža zemju augsnēs morēnas nogulumos
- Author
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Dirnēna, Baiba, Kasparinskis, Raimonds, and Latvijas Universitāte. Ģeogrāfijas un Zemes zinātņu fakultāte
- Subjects
alumīnijs ,Vides zinātne ,morēnas nogulumi ,podzolēšanās ,dzelzs - Abstract
Boreonemorālajā reģionā podzolēšanās ir galvenais augsnes veidošanās faktors un līdz ar lauksaimniecības zemju aizaugšanu tiek veicināta podzolēšanās procesa attīstību arvien plašākās teritorijās. Nav pieejami pietiekami daudz pētījumi par podzolēšanās procesa attīstību uz smaga granulometriskā sastāva augsnēm, tādēļ pētījuma mērķis ir noskaidrot dzelzs un alumīnija savienojumu mainību dažāda vecuma meža zemju augsnēs, lai raksturotu podzolēšanās procesa attīstību morēnas nogulumos. Šis pētījums ir turpinājums Ģ. Pavlova uzsāktajam pētījumam par apmežošanās procesa ietekmi uz augšņu īpašību mainību. Darbā raksturoti faktori, kas ietekmē podzolēšanās procesu, kā arī dzelzs un alumīnija savienojumu formu mainīgumu augsnē. Pētījuma rezultāti parāda, ka nozīmīgākie alumīnija un dzelzs savienojumu mainības ietekmējošie faktori ir augsnes pH vērtība, granulometriskais sastāvs, kā arī veģetācija un zemes izmantošanas vēsture. Tika konstatēts, ka alumīnija un dzelzs savienojumu brīvo un amorfo formu migrēšanu augsnes profilā galvenokārt ietekmē putekļu un māla daļiņu saturs augsnē, bet ar organiskajām vielām saistīto trīsvērtīgo savienojumu migrēšana ir atkarīga no augsnes pH vērtības., Podzolization is a key soil forming factor in a boreonemoral zone. And with the overgrowth of agricultural lands, podzolization process is increasing in wider areas. There is not enough research on the development of the podzolic process in heavy soils. Therefore, the aim of the study is to find out the variability of iron and aluminum compounds in forest soils of different age to characterize the process of podzolization in moraine sediments. This study is a follow-up to Ģ. Pavlova study on the impact of the afforestation process on the variability of soil properties. Paper describes the factors influencing the podzolization process and the variability of the forms of iron and aluminum compounds in the soil. Results show that the most important factors influencing the variation of aluminum and iron compounds are soil pH, granulometric composition, as well as vegetation and historical land use. It was found that the migration of free and amorphous forms of aluminum and iron compounds in the soil profile is mainly influenced by the dust and clay particles in the soil, but the migration of organic matter trivalent compounds depends on the soil pH value.
- Published
- 2018
49. Dabiskās apmežošanās ar parasto egli Picea abies ietekme uz augsnes virskārtu bijušajās lauksaimniecībā izmantojamās zemēs
- Author
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Afanasjeva, Kristīne, Kasparinskis, Raimonds, and Latvijas Universitāte. Ģeogrāfijas un Zemes zinātņu fakultāte
- Subjects
smilts ,mikrobioloģiskā aktivitāte ,Vides zinātne ,fizikālās un ķīmiskās īpašības ,augsnes virskārta ,mālsmilts - Abstract
Apmežošanās procesa ietekme uz augsnes fizikālajām un ķīmiskājām īpašībām, kā arī mikrobioloģisko aktivitāti vēl joprojām ir relatīvi vāji saprotama, sarežģītu procesu un dažādu vides faktoru dēļ. Maģistra darbā ir apkopota literatūra par lauksaimniecības zemju apmežošanās procesa attīstību pasaulē un Latvijā, apmežošanās procesa ietekmi uz augsnes īpašībām, kā arī par augsnes mikroorganismiem un to darbību. Maģistra darba mērķis ir noskaidrot dabiskās apmežošanās ar parasto egli Picea abies (L.) H.Karst ietekmi uz augsnes virskārtas fizikālajām un ķīmiskajām īpašībām, kā arī mikrobioloģisko aktivitāti smilts un mālsmilts augsnēs bijušajās lauksaimniecības zemēs. Pētījuma rezultāti parāda, ka lauksaimniecības zemei dabiski apmežojoties ar parasto egli Picea abies (L.) H.Karts 15 gadu ilgā periodā mainās veģetācijas pārklājums, augsnes skābums, tilpummasas blīvums, apmaiņas katjonu, kopējā oglekļa, slāpekļa un fosfora koncentrācijas, kā arī ietekmē mikroorganismu aktivitāti. Izmaiņas ir novērotas gan smilts, gan mālsmilts augsnē pārsvarā dziļumā no 0 līdz 10 cm., Afforestation process influence on the soil physicochemical properties and microbiological activity are still relatively poorly understood, due to complex processes and various environmental factors. The master's thesis summarizes literature about the afforestation process development on agricultural lands in the world and Latvia, the impact of the afforestation process on soil properties, as well about soil microorganism and their activities. The aim of the master's thesis is to find out the influence of natural afforestation with spruce Picea abies (L.) H.Karst on the physical and chemical properties and microbiological activity in sandy and loamy sand soils in former agricultural lands. The results of the research show that natural afforestation of agricultural land with Norway spruce Picea abies (L.) H.Kart during the 15-year period changes vegetation cover, soil acidity, bulk density, concentration of exchangeable cations, organic carbon, total nitrogen, phosphorus, as well activity of microorganisms. The changes are observed in both sand and loamy sand soils, mostly at depths from 0 to 10 cm.
- Published
- 2018
50. Augsnes faktoru ietekme uz zemes izmantošanas struktūru Gailīšu un Īslīces pagastos
- Author
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Stankovska, Olga, Kasparinskis, Raimonds, and Latvijas Universitāte. Ģeogrāfijas un Zemes zinātņu fakultāte
- Subjects
lauksaimniecībā izmantojamās zemes ,Ģeogrāfija ,augsnes granulometriskais sastāvs ,zemes kvalitatīvā vērtība ,telpiskā diferenciācija - Abstract
Pēdējo desmitgažu laikā, zemes lietošanas veidu un zemes segumu izmaiņas pasaulē ir kļuvušas par vienām no aktuālākajām pētījuma tēmām sabiedrībā, īpaši saistībā ar ilgstpējības jautājumu. Zemes izmantošanas struktūrai un zemes lietošanas veidiem raksturīgs mainīgums gan telpiskā, gan temporālā aspektā. To galvenokārt nosaka antropogēnie faktori, t.sk. sociālie, ekonomiskie un politiskie, savukārt biofizikālajiem faktoriem, t.sk. augsnes faktoram ir būtiska nozīme augstāk minēto antropogēno faktoru noteikšanā. Pētījuma mērķis ir noskaidrot augsnes faktoru nozīmi zemes izmantošanas struktūras telpiskajā diferenciācijā Gailīšu un Īslīces pagastos. Pētījuma rezultāti pierāda, ka augsnes faktoriem (augsnes klasei, tipam, granulometriskā sastāva grupai un zemes kvalitatīvai vērtībai) ir būtiska loma zemes izmantošanas struktūras telpiskajā diferenciācijā pētāmajos pagastos. Lielākas kontūru platības raksturīgas tieši auglīgām augsnēm ar augstu zemes kvalitatīvo vērtību., Over past decades change of land use and land cover in the world have become one of the most actual research topics in society, particularly in relation to issue of sustainability. Land use structure and types of land use are variable in both spatial and temporal terms. Mainly this variability is driven by anthropogenic factors, including social, economic and political, while biophysical factors including soil factors play an important role in determining previously mentioned anthropogenic factors. The study aims to find out effect of soil factors on spatial differentiation of land use structure in Gailisu and Islices parishes. Results show that soil factors (class, type, texture and quality of land) have essential role in spatial differentiation of land use structure in studied parishes. Greater contour areas are distributed on fertile soils with high value of land quality.
- Published
- 2017
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