نتایج جستجو برای: cultivated land
تعداد نتایج: 139197 فیلتر نتایج به سال:
New Zealand Journal of Ecology (1997) 21(2): 121-128 ©New Zealand Ecological Society E. wiltoni Locket, Leptyphanthes tenuis (Blackwall) dominated in pitfall trap catches. In this paper, we provide the first quantitative data on the density and diversity of spiders in New Zealand cultivated land under different management regimes, and compare the species assemblages with those found in similar ...
In Iran, the development of cultivated areas becomes gradually impossible due to ever-increasing population growth and urban area development. Therefore, it is very important to use the existing cultivated lands more efficiently. Land suitability evaluation makes the sustainable use of the lands feasible. The objective of this study was qualitative, quantitative and economic assessment of land ...
In Iran, the development of cultivated areas becomes gradually impossible due to ever-increasing population growth and urban area development. Therefore, it is very important to use the existing cultivated lands more efficiently. Land suitability evaluation makes the sustainable use of the lands feasible. The objective of this study was qualitative, quantitative and economic assessment of land ...
A large amount of cultivated lands in China is occupied by vacant residential areas, thereby wasting land resources and placing local food security at risk. Therefore, transforming vacant rural residential land back to its previous form is urgently required to maintain the amount of cultivated land and guarantee food security. We comprehensively analyzed the willingness of farmers to participat...
The forms and dynamics of soil phosphorus can be greatly affected by land use changes, which often involve changes in vegetation cover, biomass production and nutrient cycling in the ecosystem. Present research evaluates the impact of land use change on the amount of total organic and inorganic P, labile, moderately labile and nonlabile P pools in semiarid soils of central Zagros. Samples were ...
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