Guizhous Karst rocky desertification is most serious in China. The analysis of the evolution features could provide the objective basis for the tackling and transformation of rocky desertification. The survey of the rocky desertification was based on the three phases of remote sensing images spanning 20 years (at the end of the 1980s, the end of the 1990s and the year of 2008). On the basis of geometric correction, image registration, image mosaic, radiometric correction, and information enhancement and in combination with the field examination and artificial interpretation, researchers obtained the limestone distribution map, the rocky desertification distribution map, the rocky desertification evolution map and the data base. Comparison and analysis show that, from 1988 to 1999, the rocky desertification of Guizhou Province became more and more serious, and the annual average degradation area increased by 744 km2; nevertheless, from 1999 to 2008, the area of degradation became smaller and smaller, and the degradation area was reduced by 1 153.3 km2 per year. In combination with the evolution features of rocky desertification in Guizhou Province, this paper deals with the relationship of decrease of agricultural population, the development and utilization of marsh gas, the increase of per head income and the policy of conversion of cropland into forest to the evolution regularity of rocky desertification, with the purpose of providing objective grounds for the further tackling and transformation of rocky desertification.
李建存, 涂杰楠, 童立强, 郭兆成. 贵州岩溶石漠化20年演变特征与影响因素分析[J]. 国土资源遥感, 2013, 25(4): 133-137.
LI Jiancun, TU Jienan, TONG Liqiang, GUO Zhaocheng. 20 year’s evolution features and influence factor analysis of rocky desertification in Guizhou. REMOTE SENSING FOR LAND & RESOURCES, 2013, 25(4): 133-137.
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2013, Vol. 25 
