نتایج جستجو برای: technogenic desertification
تعداد نتایج: 2649 فیلتر نتایج به سال:
desertification is the consequence of series of processes in which climate change and human activities are more important factors than others. arid and semi-arid areas have occupied most parts of iran. sistan region is one of arid areas of iran where wind erosion is an important factor of land degradation and soil deterioration. for classification of desertification intensity, several methods h...
sistan plain is affected by desertification and this phenomenon has serious impacts on roads and socio- economic activities of local people of this region. the main purpose of this study is estimating the current and potential desertification intensity of niatak region of sistan based on micd method. that, through it the working units of this region were prepared as the base map for evaluating ...
Now days desertification of lands in phenomelal that threaded different region of world specially arid, semi arid and semi-arid humid. In this research whit using of two Irainian new methods: IMDPA that is based on geometric sum and MICD that is based on arithmetic sum. Desertification capacity of Lar city area during recent half century (from 1995 to 2005) has considered with emphasis on facto...
Since its origins, the concept of desertification has been shrouded in controversy and ambiguity. As a result, no single definition term acceptable; there is agreement on extent or seriousness; solutions proposed are often disparate counterproductive. This essay suggests all this due to being permanent ‘prisoner history’, historical process led by United Nations Convention Desertification (UNCC...
Undoubtedly, land degradation linked to desertification causes a decrease in qualitative and quantitative features of natural resources. This research aimed to assess land desertification by local residents and their role in controlling desertification in Isfahan province, Iran in 2016. The criteria were soil climate, vegetation, erosion, and demography. The indicators of soil texture, stone fr...
and Applied Analysis 3 TM images MODIS Meteorogical data Other dataset Landuse NDVI Precipitation Temperature Wind DEM Soil Dataset of study area Soil erosion sensitivity Soil desertification sensitivity Landscape unit plaques density Landscape evenness index Land utilization degree composite index Ecological suitability index Land resources utilization degree index Ecological vulnerability in ...
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