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The importance of the approached topic derives from the fact that the land properties are extremely differentiated in the territory, due to the variation of pedogenesis factors and conditions, as well as from the fact that in production system of plants, the productive potential of the soil and the judiciously applied humar labour are harmoniously combined. The aim of the research finds its origin in the current scientific and practical concerns of the accumulation of knowledge on pedological and agrochemical characteristics regarding the inventory, grading and classification of soil resources according to the ecological requirements of the main cultivated plants, in order to identify and develops an agronomically, ecologically and conservatively integrated management for the soil and the environment. The presented results are part of the program of doctoral studies and researches (28.09.2015- 27.09.2018) having as theme "Research on the ecopedological bases of land productivity in the Lipova Hills and possible pressures on their quality". The approached issue refers to the lands of the territorial administrative unit (ATU) Remetea Mare with an area of 10125 ha, of which 8691 ha represents the agricultural land. The paper offers, through the presented material, basic knowledge and methodological elements for the evaluation and characterization of natural and anthropically induced resources, in the hope that the information obtained will arouse the interest of the decision maker so that in the near future agricultural research and practice, together with environmental protection, to make efforts for the development of interdisciplinary studies, not being able to talk about a healthy environment without a healthy soil. [ABSTRACT FROM AUTHOR]

The aim of the research undertaken finds its origin in the current scientific and practical preoccupations more and more assiduous to identify and develop an integrated management of agroecosystems, efficient from an agronomic point of view, with reduced energetic and financial efforts, ecological and conservative for soil and environment. This paper presents a few aspects regarding the edaphic layer structure and its quality, as well as some restrictive features of land quality, features that define their vocation for certain utilities and different favorabilities for certain plants and fruit trees. The geographical area known as the Lipovei Hills, Lipovei Piedmont or Lipova Plateau is positionally located in the western part of the country. As a geographical unit of transition between the orogeny of the Western Carpathians. They are an integral part of the Western Hills, which are well-individualized geomorphological units by the structure of deposits, their location on the periphery and altitude. The situation of the land of recent developments and its current state consists of all areas represented by land areas and those covered by water, regardless of destination, the title on which they are held or the public or private domain to which they belong. Referring to the area taken into account, the issue addressed refers to an area of 309,186 ha of which 181,890 ha are agricultural land (58.83%) and 110,695 ha (35.80%) land with forest vegetation, located in western Romania, which from an administrative point of view, they belong to a number of 25 ATUs from Timiş (17) and Arad counties (9). [ABSTRACT FROM AUTHOR]

Our research has its origins in the scientific and practical preoccupations regarding gathering knowledge about determining the risks of the apparition of limiting factors in the land productivity and estimating values for a series of the considered factors: compactness degree, soil reactivity, granular composition, surface and depth humidity. All these factors influence the workability of the land. The importance of this subject comes from the fact that there are close links between the structure of the land fund with its characteristics and the grown species, links that are various and complex. Thus, the properties of the soil can greatly influence the roots, mineral nutrition, the air and water supply needed for all the physiological processes, and the plants themselves will influence directly and indirectly the fertility of the soil and its productivity. Taking into consideration all these aspects, and based upon the research done throughout the PHD course - 28th of September 2015 to the present with the topic RESEARCH ON THE ECO- PEDOLOGY BASES OF LIPOVA HILLS LAND PRODUCTIVITY AND POSSIBLE PRESSURES UPON THEIR QUALITY, this paper presents a few aspects regarding the establishing othe risk of apparition and intensification of limiting factors in fields productivity, characteristics that define land vocation for certain usages or agricultural practices. Through its geographical position, the area known as LIPOVA HILLS, LIPOVA PIEMONTE OR LIPOVA PLATEAU, is situated in the western part of the country, 21°22'30'' and 22°21'30'' east longitude and 45°55' and 46°15' north latitude, as a transition between Western Carpathians and the lower region of Bega- Timis corridor. Thus, the area has specific characteristics of real interest for scientific research. The research is linked up with the fundamentals of durable agriculture, responding to domestic demands of constituting a scientific database needed for the foundation of technology and management measures of agro-eco systems. [ABSTRACT FROM AUTHOR]

The purpose of the researches is based on current scientific and practical discourses on the accumulation of knowledge on the spatial peculiarities of the natural frame as elements that define the quality of the soils and the possible pressures on them. The importance of the topic is derived from the fact that the relations between the soil characteristics and the main cultivated species can establish relationships of varied and complex reciprocity. So the soil properties can exert a definite influence on the development of the root system, mineral nutrition, ensuring the aerohydric and thermal regime necessary for the physiological processes and the plants (phytocoenoses) in their turn act both directly and indirectly on the soil fertility status. Considering that these considerations in the paper are presented on the basis of the research carried out during the doctoral school, respectively 28.09.2015 and so far on the subject "Research on ecopedological bases of land productivity in Lipovei Hills and possible pressures on their quality", some aspects related to the structure of edafic cover and to the particularities of the main types and associations of soils, to their quality status and some restrictive characteristics of land quality, characteristics that define their vocation for certain utilities. By its geographical location the area known as Lipovei Hills, Lipovei Piedmont or Lipova Plateau is situated in the western part of the country, between the geographical coordinates: 21°22'30'' şi 22°21'30'' eastern longitude and 45°55' şi 46°15' north latitude, as a transition unit between the Western Carpathian orogen and the low, subsidence area of the Banat-Crişana Plain, which imparts to the area specific specicities of real interest for the scientific research. The necessity of the geomorphological and pedological researches of this depression unit of Mureş de Jos (the actual piedmont complex Lipovei Hills) was also imposed for socioeconomic and agricultural reasons in particular, because without knowing how the natural landscape evolved, from origins to at present, it is not possible to determine how the lands and soils will develop in the future. [ABSTRACT FROM AUTHOR]