10 results on '"WATER supply"'
Search Results
2. Wiederansiedlung gefährdeter Arten der Pfeifengraswiesen in Luxemburg.
- Author
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Breit, Franziska, Albrecht, Harald, and Schneider, Simone
- Subjects
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NATURE conservation , *WATER supply , *SUPPLY & demand , *WILDLIFE reintroduction , *SURVIVAL rate , *BOTANY , *FOREST restoration - Abstract
Today, wet meadows and their typical flora are in sharp decline. In Luxembourg, these include characteristic species of Molinion meadows such as Oenanthe peucedanifolia, Scorzonera humilis, Stachys officinalis, Succisa pratensis and Serratula tinctoria. To support such species, the nature conservation syndicate SICONA has practiced propagation and in situ plantation since 2012. The aim of this study was to assess the long-term success of such reintroduction measures. We examined the establishment of the five target species four to nine years after reintroduction. Three questions were addressed: (1) how successful was the reintroduction, (2) how did vegetative and generative traits - as key indicators of vitality and fitness - differ between newly established and extant populations, and (3) what influence did site conditions have on establishment success? For this purpose, survival, reproduction, and establishment rates were determined on six reintroduction plots per species. Vitality and fitness in newly established (introduction sites) and sites with natural populations (reference sites) were compared using phenometric and reproductive traits. Ellenberg indicator values determined from vegetation surveys were applied to characterize site conditions. For three target species, Stachys officinalis, Succisa pratensis, and Oenanthe peucedanifolia, the newly planted populations showed successful establishment and reproduction, underlined by establishment rates between 327 and 763%. In Serratula tinctoria, one quarter of planted individuals survived, while little regeneration occurred. For these four target species and in 60% of all 30 reintroduction plots population size increased. Only for Scorzonera humilis establishment was less successful, averaging 7.5%. Whilst, for all five species, most of the newly planted individuals reached a vitality similar to that of extant populations, their reproductive fitness usually ranged lower. Comparison of Ellenberg indicator values illustrated that habitat conditions for the target species at most of the restoration sites well matched with conditions at the reference sites. In some introduction sites, indicator values suggest higher base and nitrogen supply and a lower water availability than on the long existing sites. Weaker development of the target species in such sites proves the great importance of suitable site conditions for restoration success. Nursery propagation and on-site plantation were demonstrably a well-suited method to strengthen declining populations of threatened Molinion meadow species and it seems likely that newly established populations can remain viable in the long term. Nevertheless, not all target species showed successful establishment. Serratula tinctoria barely managed to reproduce and for Scorzonera humilis both survival and reproduction rates were very low. Species-specific factors such as insufficient genetic exchange or over-aging of donor populations are discussed as potential causes. In addition, reintroduction can also be constrained by practice-related factors such as the shortage of sites suitable for stenoecious species and the lack of suitable sites for re-wetting. This study also demonstrates the importance of monitoring the long-term success of in situ conservation measures, which has received insufficient attention in restoration practice so far. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
3. Äolische Sandebenen, Fluss- und Playasee-Ablagerungen in der Hessischen Senke: Die Detfurth-Formation (Mittlerer Buntsandstein, Untertrias) zwischen Marburg und Hessisch-Lichtenau.
- Author
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Hug-Diegel, Nicola
- Subjects
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CORE drilling , *PLAYAS , *ROCK properties , *WATER supply , *SANDSTONE - Abstract
Aeolian sediments are widespread along the western margin of the Hessian Depression and partly build up the entire Detfurth Formation. To the northeast, towards the central Hessian Depression, they interfinger with aquatically deposited sediments, but are still widely traceable. In profiles containing the Detfurth Claystone or its equivalents, aeolianites sometimes still occur up to 18 m thick above the pelites. Based on detailed sedimentological recordings and facies interpretations of the core drillings Remsfeld GWM6 (2017) and Hirschhagen BK04/10 (2004) as well as evaluation of previously unpublished drill profiles of the core drillings Kirtorf GW3 (2001), Borken Z1 (1984/85) and Oberkaufungen I (2000), the spatial relationships of the aeolian, fluviatile and limnic facies of the Detfurth Formation between Marburg and Hessisch-Lichtenau are reconstructed. A preliminary facies model explains the observed lateral and vertical sequences of deposits of dry and wet aeolian sand plains, aquatic-dominated sand plains, deltas, fluvial plains and the central (mega-)playa lake. The spatial relationships of the previous subformations Detfurth Sandstone, "Detfurth Wechselfolge" (alternating sequence) and Detfurth Claystone, which clearly deviate from a "layer-cake geometry" in the Hessian Depression, can also be clarified using this model. For geogenetic reasons, but also because of the completely different rock properties of fluvial and aeolian sediments, it is proposed to combine the aeolianites in a separate subformation. Considerations on the temporal development of base level, water supply and sediment supply lead to a sequence-stratigraphic concept for the sediments of the Detfurth Formation in the western to northern Hessian Depression. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
4. Hallig Habel wieder in ruhigem Fahrwasser.
- Subjects
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MARINE resources conservation , *WATER supply , *SOOT , *NATIONAL parks & reserves , *INAUGURATION , *HOME repair - Abstract
The renovation of the heavily damaged house on the Hallig Habel is almost completed. The ground floor had to be disposed of due to soot deposits, and the house had to be detoxified and painted. The electricity, gas, and water supply have been renewed. The renovation was carried out in cooperation with the building management and the State Office for Coastal Protection, National Park, and Marine Conservation. The Jordsand association is responsible for furnishing and minor repairs. The renovation was a major challenge and lasted until September 2023. The Hallig could be regularly occupied again from the end of July and was officially inaugurated on September 14, 2023, with an inauguration trip. There were also exhibitions about the history of Habel and guided tours of the western part of the Hallig. The renovation was financed through favorable offers and donations, including generous sponsorship from Schultz GmbH & Co KG. The care of the Hallig had to be carried out from Hallig Gröde during the renovation but could be resumed normally from summer 2024. [Extracted from the article]
- Published
- 2023
5. Messe IFAT.
- Subjects
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ENERGY demand management , *WATER demand management , *WATER supply , *DRINKING water , *NEW business enterprises - Abstract
IFAT 2024 is an environmental industry fair that takes place in Munich and presents new solutions for expanding climate resilience. The fair is primarily aimed at municipalities that are confronted with environmental tasks such as drinking water supply. One focus of the fair is on measurement technology for coping with the energy transition and climate change. Alternative drives and solutions for reducing energy demand in water management are also presented. The fair also offers a start-up area for international young companies and an action area for lectures and discussion rounds. [Extracted from the article]
- Published
- 2024
6. Messe IFAT.
- Subjects
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ENERGY demand management , *WATER demand management , *WATER supply , *DRINKING water , *NEW business enterprises - Abstract
IFAT 2024 is an environmental industry fair that takes place in Munich and presents new solutions for expanding climate resilience. The fair is primarily aimed at municipalities that are confronted with environmental tasks such as drinking water supply. One focus of the fair is on measurement technology for coping with the energy transition and climate change. Alternative drives and solutions for reducing energy demand in water management are also presented. The fair also offers a start-up area for international young companies and an action area for lectures and discussion rounds. [Extracted from the article]
- Published
- 2024
7. Brasilien im Umbruch.
- Author
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Wahl, Achim
- Subjects
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WATER supply , *EQUALITY , *INTERNATIONAL relations , *SOCIAL conflict - Abstract
The article "Brazil in Transition" deals with the challenges that arise for Brazil's foreign and domestic policy after Lula da Silva's election victory over Jair Bolsonaro. Brazil is the fifth largest country in the world and occupies almost half of the area of the South American continent. It has a multiethnic and multicultural population, shaped by migration from different parts of the world. Brazil is a presidential federal republic and is part of the BRICS countries. The country has large natural and water resources, a high biodiversity in the Amazon basin, and a developed industrial base. However, there is still a great social inequality and conflict potential in the country. [Extracted from the article]
- Published
- 2023
8. HT 2012: Das Wasser: Ressource zwischen Alltagsbedarf, Ingenieurkunst und Repräsentation. Eine Konversation zwischen Antike und Neuzeit.
- Author
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Hellberg, Florian
- Subjects
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WATER management , *HYDRAULIC engineering , *WATER supply , *LEGITIMACY of governments , *HISTORY , *CONFERENCES & conventions ,EGYPTIAN politics & government, 332-30 B.C. - Abstract
The article reports on a panel on the social, economic, and symbolic aspects of water management in history, convened at the Deutscher Historikertag (Conference of German Historians), held from September 25-28, 2012, in Mainz, Germany. Topics of discussion included conflicts over the water supply in ancient Greece, the use of hydraulic engineering projects to enhance the legitimacy of governments in early modern Europe, and the politics of water management in Ptolemaic Egypt.
- Published
- 2012
9. ANALISE COMPARATIVA ENTRE A VAZÃO REAL E AVAZÃO DE REFERÊNCIA PARA OUTORGA DE ÁGUA DO CÓRREGO BARRERINHOUBERLÂNDIA-MG.
- Author
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Silva, Josimar Felisbino, Da Luz Netto, Fausto Miguel, and Rodrigues, Silvio Carlos
- Subjects
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COMPARATIVE studies , *WATER supply , *NATURAL resources , *METEOROLOGICAL precipitation , *DISCHARGE of ballast water - Published
- 2010
10. EINFLUSS VON WASSER- UND NÄHRSTOFFVERSORGUNG AUF DIE ANFANGSENTWICKLUNG EINER NACHSAAT.
- Author
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Milimonka, A. and Richter, K.
- Subjects
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WATER supply , *SEEDLINGS , *GRASSES - Abstract
In a pot experiment the influence of water (insufficient: 1 mm d-1 by watering; sufficient: capillary raising water from 35 cm soil depth) and nutrient supply (NPK-fertilisation broadcast or stripe fertilisation to the sod seeded row) onto the juvenile development of the sod seeded grass Festuca pratensis Huds. was investigated. With insufficient water supply the number of sod seeded plants at the end of the experimental periods was 50% as well as 0% of that of the well watered treatments. Obviously, the stripe fertilisation does not result in an improved nutrient supply and establishment. The results indicate a more complicate establishment with increasing amounts of Elymus repens L. The effects of insufficient light supply can be excluded. The restricted establishment of the so seeded grasses seems to be caused by effects in the rooting zone. [ABSTRACT FROM AUTHOR]
- Published
- 2001
- Full Text
- View/download PDF
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