基于GIS和CSLE的土壤侵蚀定量评价——以山东省临沂地区为例

发布时间：2018-05-14 23:00

本文选题：土壤侵蚀 + CSLE模型　；参考：《江苏农业科学》2016年11期

【摘要】：为了解及评估山东省临沂地区土壤侵蚀现状,在地理信息系统(geographic information system,简称GIS)技术支持下,应用中国土壤侵蚀方程(Chinese soil loss equation,简称CSLE)模型,中分辨率成像光谱仪[moderate-resolution imaging spectroradiometer,简称MODIS(250 m)]与航天飞机雷达地形测绘[shuttle radar topography mission,简称SRTM(90 m)]影像,测量研究区10个气象站点降水量数据及土壤类型图等数据,结合临沂地区特征,定量估算了研究区土壤侵蚀量。结果表明:(1)研究区土壤的微度侵蚀占总面积的80.83%,轻度侵蚀占15.62%;(2)在地形起伏较大的山区、丘陵地带存在非常明显的中、强度侵蚀,土壤侵蚀较为严重的地区主要分布在山区周围,平原地区侵蚀强度较轻;(3)山区周围的侵蚀以山脚为主,越往上的区域,侵蚀程度越低。
[Abstract]:In order to understand and evaluate the present situation of soil erosion in Linyi area, Shandong Province, with the support of GIS technology, the Chinese soil loss equation, model was applied to the soil erosion equation of China. The mid-resolution imaging spectrometer (MODIS(250 m) and the space shuttle radar topographic mapping (shuttle radar topography mission, mm) are used to measure the precipitation data and soil type map of 10 meteorological stations in the study area, combined with the characteristics of Linyi region. The amount of soil erosion in the study area was estimated quantitatively. The results show that the soil micro-erosion accounts for 80.83% of the total area in the study area, and the slight erosion accounts for 15.622% of the total area. The erosion intensity of the plain area is lighter than that of the mountain area (3) the erosion around the mountain area is mainly at the foot of the mountain, and the erosion degree is lower as the area goes up.
【作者单位】：中国石油大学地球科学与技术学院;海洋石油工程股份有限公司;
【基金】：农业气象保障与重点实验室开放基金(编号:AMF201309) 中央高校基本科研业务费专项资金(编号:11CX04012A)
【分类号】：S127;S157.1

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