期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2006
卷号：XXXVI Part 4
出版社：Copernicus Publications
摘要：Desertification is one of the world's most alarming process of environmental degradation not as a natural problem of advancing deserts, but a phenomenon of land degradation due to loss of land's biological productivity, caused by human induced factors and climate change. It affects one third of the earth's surface and over a billion people. Moreover, it has potentially devasting consequences in terms of social and economic costs. The pilot project at the behest of Ministry of Environment and Forests, Govt. of India has been taken up by the Space Applications Centre. Ratlam district of Madhya Pradesh has been included in 10 districts selected for pilot study in the country. Ratlam district is situated in the extreme western part of Madhya Pradesh. It is a part of Malwa Plateau and making boundary with Rajasthan state also. It is being affected by the desertification process of nature extending from Rajasthan side, as observed during the last few decades. Mass scale cattle grazing, lowering of ground water table, non-availability of surface water, scanty rainfall, skeletal soil, loss of vegetation cover etc., are some the major pr oblems of the district. Due to these problems the area is being converted into the desert alarmingly. Maps depicting landuse/landcover, process of degradation and severity of degradation of Ratlam district have been prepared on 1:50,000 scale using IRS-1C/1D LISS III data for Rabi and Kharif seasons pertaining to normal monsoon/rainfall seasons. Analysis of results for Ratlam district reveals that about 50,780 ha. area of land with scrub was affected by degradation process such as vegetation degradation (46,800 ha.), water erosion (398 ha.). Out of total geographical area 23,850 ha. of forest area was affected by vegetation degradation. Total barren/rocky area affected was about 4,230 ha out of it 140 ha. was affected by water erosion. About 407240 ha. of other category was under degradation
关键词：Desertification; Land degradation; Soil and water conservation
