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| Matter-element model to the comprehensive evaluation on danger of soil erosion |
| Fu Shifeng, Zha Xuan |
| Institute of Geography, Fujian Normal University, 350007, Fuzhou, China |
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Abstract Based on the new cognition of danger of soil erosion, six indexes are adopted, namely, rainfall erosion force, topographic relief, percentage of forestry area, percentage of slight and above erosion area, soil erodibility factor K value, comprehensive development intensity of regional society and economics through all-sided correlation analysis on influencing factor. By means of methods of extension engineering and principal component analysis, a matter-element model to the comprehensive evaluation on danger of soil erosion in Fujian province is set up. The output of the model provides reasonable bases for soil and water conservation zoning, soil and water conservation planning, setting up the crucial control region and adopting specific measures further.
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Received: 01 January 2005
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