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为贵州省土壤侵蚀和石漠化的治理提供依据,运用K-means聚类从垦殖率、≥25°坡耕地/耕地、多年平均降雨量、梯田/耕地、人均粮食产量、人均耕地面积和土壤厚度7个指标对贵州省土壤侵蚀危险度进行了评价。结果表明:土壤侵蚀危险度的空间分布格局明显,大致从西至东递减;土壤侵蚀危险度极强度区域的主要问题是垦殖率高,强度区域主要问题是梯田占耕地的比例小,中度区域主要问题是土层偏薄,在进行土壤侵蚀治理时应根据不同区域的主要问题有针对性地进行治理。
It provided the basis for the management of soil erosion and desertification in Guizhou Province. K-means clustering was used to study the relationship between soil erosion and rocky desertification. Thickness of seven indicators of soil erosion risk assessment in Guizhou Province. The results showed that the spatial distribution pattern of soil erosion risk decreased obviously from the west to the east. The main problem in the extreme soil erosion risk area was the high reclamation rate. The main problem in the intensity area was that the proportion of terraces in cultivated land was small and moderate The main problem in the region is that the soil layer is too thin. In the process of soil erosion control, we should conduct targeted management according to the major problems in different regions.