安徽省土壤侵蚀区域分布研究

Soil Erosion Areal Distribution in Anhui Province

选用SLEMSA土壤侵蚀修正模型,在安徽省选择129个代表站点,分别计算了土壤流失比率、裸地土壤流失量、地形因子,得出安徽省土壤侵蚀量为7 683万t/a。分析发现,安徽省每年63.2%的土壤侵蚀分布在大别山区(占全省年土壤侵蚀总量的30.2%)和皖南山区(33%),提出这2个区域应作为安徽省水土保持综合防治工作的重点。

SLEMSA modified was selected in this paper to calculate soil loss ration, bare land soil loss amount and landform based on 129 points in Anhui. The results showed that the soil erosion amount was 76 830 000 t/a in Anhui, and 63.2% of soil erosion in Anhui distributed in Dabieshan area （30. 2%） and Wannan area （33%）. This article recommend that these two areas should be served as main area of Anhui soil and water conservation work.