ABSTRACT

Regionalization, the assembling of districts of land together based on their homogeneity, is a basic work for soil and water conservation. Using quantitative techniques in this field is new methodology, which is expected to summarize much more information than a qualitative procedure. In this paper, we employ the most popular numerical methods, Two-way Indicator Species Analysis (TWINSPAN) and Detrended Correspondence Analysis (DCA), to synthesize data information. Shanxi Plateau was divided into a number of rectangular districts of 20' latitude by 30' longitude. In each district, the most important natural characteristics related to water loss and soil erosion, such as areas of vegetation types and soil types, climatic factors, topographic features and soil erosion intensities, are measured and used in the analysis.