| 锦屏一级水电站影响区土壤侵蚀潜在危险度分析 |
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| 引用本文： | 潘树林,李高阳,辜彬.锦屏一级水电站影响区土壤侵蚀潜在危险度分析[J].中国水土保持,2003(11):32-34. |
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| 作者姓名： | 潘树林 李高阳 辜彬 |
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| 作者单位： | 1. 宜宾学院,生物工程系,四川,宜宾,644007;四川大学,生命科学院,四川,成都,610065
2. 四川大学,生命科学院,四川,成都,610065 |
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| 摘 要： | 利用GIS技术制作专题坡度图可知 ,锦屏一级水电站影响区内 16°～ 2 5°的坡度区占最大比例 ,河谷两侧主要坡度范围为 2 6°～ 3 5° ;由当地环境资源调查资料可知 ,影响区年降水量在 60 0mm以上 ,植被覆盖率平均为 3 0 93 % ,坡耕地占坡地面积平均为 2 97% ,当地土壤主要是山地草甸土 ,岩性多为硬性变质岩。根据有关评价标准 ,确定锦屏一级水电站影响区土壤侵蚀潜在危险度为轻险型
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| 关 键 词： | 潜在水土流失 MAPGIS 锦屏一级水电站 |
| 文章编号： | 1000-0941(2003)11-0032-03 |
| 修稿时间： | 2003年8月18日 |
Analysis on Degrees of Potential Danger of Soil Erosion in Effected Area of Jinping Grade One Hydro-Power Station |
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| PAN Shu lin ,LI Gao yang ,GU Bin.Analysis on Degrees of Potential Danger of Soil Erosion in Effected Area of Jinping Grade One Hydro-Power Station[J].Soil and Water Conservation In China,2003(11):32-34. |
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| Authors: | PAN Shu lin LI Gao yang GU Bin |
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| Institution: | PAN Shu lin 1,2,LI Gao yang 2,GU Bin 2 |
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| Abstract: | It is learnt from slope drawing of special topic made by using GIS technology that 16°～25° sloped area makes the maximum proportion in the effected area of Jinping Grade One Hydro Power Station. The slope on the both sides of the valley is mainly between 26° and 35°. It is known from the survey data of local environmental resources that the annual precipitation of the effected area is greater than 600 mm, the average rate of coverage of vegetation 30.93% and the average proportion of sloped farmland in sloped area 2.97%. The local red soil is mainly mountainous meadow soil and the lithologic character is mainly hard metamorphic rock. According to the related evaluation standard that the degrees of potential danger of soil erosion in the effected area of Jinping Grade One Hydro Power Station is decided as light danger type. |
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| Keywords: | potential soil and water loss MAPGIS Jinping Grade One Hydro-Power Station |
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