CAJ | 학술논문

本文利用Landsat TM影像提取研究区的植被覆盖信息和土地利用信息,结合ASTER GDEM 30m分辨率的DEM数据提取的坡度信息,采用水利部部颁标准评价窟野河流域的土壤侵蚀风险.研究得出:①窟野河流域整体侵蚀风险不高,侵蚀面积占流域总面积的66.47%.②坡度在8°~15°的地区,侵蚀面积最大,坡度在5°~15°的地区占侵蚀总面积的95.65%;在1 150m~1 300m高程带内,侵蚀面积最大,高程小于850m和大于1 450m的地区侵蚀面积占的比例小.此研究结果可作为研究区的基础性数据,为以后管理部门作决策提供依据.
본문이용Landsat TM영상제취연구구적식피복개신식화토지이용신식,결합ASTER GDEM 30m분변솔적DEM수거제취적파도신식,채용수리부부반표준평개굴야하류역적토양침식풍험.연구득출:①굴야하류역정체침식풍험불고,침식면적점류역총면적적66.47%.②파도재8°~15°적지구,침식면적최대,파도재5°~15°적지구점침식총면적적95.65%;재1 150m~1 300m고정대내,침식면적최대,고정소우850m화대우1 450m적지구침식면적점적비례소.차연구결과가작위연구구적기출성수거,위이후관리부문작결책제공의거.
The paper extracted vegetation fraction and land use information of the researcharea from Landsat TM 30mmulti-spectral images and extracted slope information combined withASTER GDEM 30m multi-spectral data, and assessed thesoil erosionrisk in Kuye river basic according to the standard of Ministry of Water Resources. The re?sults show that:(1)the overall erosion risk of Kuye river is not high, the eroded area accounts for 66.47%of the total drainage area.(2)the eroded area isthe largest in the slope zone of 8°~15°, in theslope zone of 5°~15°,the eroded area accounts for 95.65%of the total area;the eroded area is largest in the elevationzone of 1150~1300m,the proportion of the eroded area is smallest in the elevation zone of less than 850m and morethan 1450m.The results can be used as the fundamental data in the research area, and provide basis formaking decisionsby the management departments in the future.