人民黄河2016，Vol.38Issue(4)：79-81,128,4.DOI:10.3969/j.issn.1000-1379.2016.04.018
延安市土地利用与土壤侵蚀关系研究
Research of Relationship Between Land Use and Soil Erosion in Yan’ an City
摘要
Abstract
Based on GIS technology, the land use and current situation of soil erosion of Yan’ an City in 2009 was analyzed, and the relationships between them were studied by spatial overlay analysis. The results show that the land use of Yan’ an City is mainly composed of cultivated land, woodland and grassland, which makes up 97.4% of the total area;the main degree of soil erosion is micro⁃erosion and light erosion, accounting for 39.28% and 23.31% of the total area respectively;among the different land use types, town village and mining land are the maximally eroded with the erosion intensity comprehensive index of 6. 14; the forestland is the minimally eroded with the erosion intensity comprehensive index of only 1.83. Aiming at the erosion situation of Yan’ an City, optimizing the land use structure and improving the vegetation will prevent and control the soil and water loss problem.关键词
土壤侵蚀/GIS技术/土地利用/侵蚀强度/延安市Key words
soil erosion/GIS technology/land use/erosion intensity/Yan’ an City分类
农业科技引用本文复制引用
董起广,韩霁昌,张卫华,李娜,雷娜..延安市土地利用与土壤侵蚀关系研究[J].人民黄河,2016,38(4):79-81,128,4.基金项目
“十二五”国家科技支撑计划项目（2014BAL01B03）。 （）
