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Showing items 18991 through 18999 of 73594.The place of grasslands in the French regions has undergone great changes presently as a consequence of the deep transformations of contemporary agriculture, with environmental and social effects.
Salinization and alkalization are considered spatiotemporal dynamic soil degradation processes. In order to investigate the effects of agricultural activities on land degradation and soil salinity, Shamsabad area in Qom province was selected.
Provision of clean freshwater is an essential ecosystem service that is under increasing pressure worldwide from a variety of conflicting demands. Water yields differ in relation to landâcover type.
Low or medium spatial resolution satellite images are used for environmental monitoring in remote, extremely cold areas such as Antarctica. However, they cannot provide detailed spatial and spectral information over Antarctic areas.
There is a growing demand for improving the measurement of forest resources, with more frequent updating and better information on environmental variables.
Transboundary haze pollution from smoke from land preparation fires has become a perennial problem in Indonesia, especially in the last 10 years during the dry season.
Traditional varieties or land races from diverse rice growing ecosystems serving as repository of desirable gene pools for rice improvement including rice hybrids have been marginalized or are at the verge of perhaps total genetic erosion.
Economic, agronomic, and biophysical drivers affect global land use, so all three influences need to be considered in evaluating economically optimal allocations of the world’s land resources.
In this study,land cover data were digitized on topographical maps(1954,1984 and 2001).Land cover data were analyzed using ArcGIS and Fragstats programs.
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