神东矿区植被覆盖和土壤侵蚀时空动态分析  

Temporal and Spatial Dynamic Analysis of Soil Erosion in Shendong Mining Area

作　　者：王小燕 王丽云 马宁[1] WANG Xiaoyan;WANG Liyun;Ma Ning(Upper and Middle Yellow River Bureau,YRCC,Xi’an 710021,China)

机构地区：[1]黄河水利委员会黄河上中游管理局,陕西西安710021

出　　处：《人民黄河》2022年第5期124-127,共4页Yellow River

摘　　要：神东矿区是我国西北地区最大的煤炭生产基地,为了给神东矿区煤炭资源合理开发和水土流失防治提供参考,基于卫星遥感影像数据、数字高程模型和经验性土壤侵蚀模型,对2005—2018年神东矿区土地利用、植被覆盖度和土壤侵蚀时空动态变化情况进行了分析。结果表明:神东矿区土地利用方式日趋合理、植被覆盖度总体向好发展、土壤侵蚀强度逐渐减弱;林地、居民点及工矿用地、草地面积增加,耕地面积减少;高覆盖度和中高覆盖度面积增幅较大,主要由中覆盖度和中低覆盖度转化而来;中度以上土壤侵蚀面积减少,较高强度侵蚀向较低强度侵蚀转化。The Shendong mining area is the largest coal production base in Northwest China. In order to provide references for the rational development of coal resources and the prevention and control of water and soil erosion in the Shendong mining area, based on satellite remote sensing image data, digital elevation models and empirical soil erosion models, the results of 2005-2018 the temporal and spatial dynamic changes of land use, vegetation coverage and soil erosion in Shendong mining area were analyzed. The results show that the land use of Shendong mining area is becoming more reasonable, the vegetation coverage is generally improving and the soil erosion intensity is gradually weakening;the area of woodland, residential area, industrial and mining land, and grassland has been increased, while the area of arable land has been decreased;high and medium-to-high coverage areas are increased greatly mainly due to the conversion of medium and low coverage;the area of soil erosion above moderate is reduced and the erosion of higher intensity is transformed to lower intensity.

关 键 词：土地利用 植被覆盖度 土壤侵蚀强度 神东矿区 

分 类 号：S157.1[农业科学—土壤学] TV882.1[农业科学—农业基础科学]