| 永定河治理区土壤侵蚀时空变化分析 |
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| 引用本文： | 张喜旺,凌峰,李晓松,闫娜娜,吴炳方.永定河治理区土壤侵蚀时空变化分析[J].测绘科学,2011,36(6):80-82,55. |
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| 作者姓名： | 张喜旺 凌峰 李晓松 闫娜娜 吴炳方 |
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| 作者单位： | 1. 中国科学院遥感应用研究所,北京,100101
2. 水利部海委海河流域水土保持监测中心站,天津,300170 |
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| 基金项目： | 中国科学院知识创新工程重大项目(KZCX1-YW-08-03);水利部“官厅密云水库上游水土保持遥感监测二期工程”(HW-STBC2004-03) |
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| 摘 要： | 本文利用“北京一号”小卫星32 m多光谱数据提取研究区的植被覆盖信息与土地利用信息,利用1∶50 000DEM数据提取研究区坡度信息,采用中华人民共和国水利部部颁标准“土壤侵蚀分类分级标准SL 190-96”,评价研究区的水蚀风险等级；并结合全国第二次土壤侵蚀遥感(LandsatTM)调查数据,进行土壤侵蚀时空变化分析...
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| 关 键 词： | 土壤侵蚀 时空变化 地理信息系统 遥感 |
Analysis of soil erosion temporal and spatial changes in the Yongding River controlling area |
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| ZHANG Xi-wang,LING Feng,LI Xiao-song,YAN-Nana,WU Bing-fang.Analysis of soil erosion temporal and spatial changes in the Yongding River controlling area[J].Science of Surveying and Mapping,2011,36(6):80-82,55. |
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| Authors: | ZHANG Xi-wang LING Feng LI Xiao-song YAN-Nana WU Bing-fang |
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| Institution: | ①(①Institute of Remote Sensing Applications,Chinese Academy of Sciences,Beijing 100101,China;②Haihe River Water Conservancy Committee,Ministry of Water Resources,Tianjin 300170,China) |
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| Abstract: | The paper extracted vegetation fraction and land use information from Beijing-1 small satellite 32m multi-spectral images,and extracted slope information from DEM obtained from 1∶50 000 topographic map,and assessed the soil erosion risk according to the national professional standard of SL190-96 Standards for classification and Gradation of Soil Erosion.Subsequently it compared with the result of the Second Remote Sensing Investigation of Soil Erosion in China using Landsat TM in 2000,and analyzed the temporal and spatial changes of erosion risk.The results showed as follows:according to the overall status,the eroded area decreased by 2803.42 km2,but the more severe and extremely severe area increased by 29.38 km2 and 18.05 km2 respectively;according to the changing trends,the area sum of erosion level degradation is larger than the area sum of erosion level upgrade.The fact indicated that most regions still have degradation trend when the eroded area becomes smaller in the study area.Finally,it produced erosion changing trends map which would help control soil erosion. |
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| Keywords: | soil erosion temporal and spatial changes GIS RS |
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