摘要
黄河流域(中卫段)是重要的生态功能区,也是生态脆弱区。本文基于RUSLE方程,在ArcGIS环境下分析黄河流域(中卫段)2010年、2015年、2020年春、夏、秋、冬四季的土壤侵蚀敏感性。结果表明,研究区土壤侵蚀综合敏感性从大到小依次为春季、冬季、秋季和夏季。黄河流域阶地土壤侵蚀不敏感,地形起伏度在200 m以上且坡度在15°以上区域土壤侵蚀高度敏感或极敏感,地形起伏度在20 m以内且坡度在5°以内区域土壤侵蚀不敏感。目前,对研究区侵蚀敏感性影响较大的因子为降雨量和植被覆盖度。
The Yellow River Basin in Zhongwei section is an important ecological function area and an ecologically fragile area.Based on the RUSLE equation,the soil erosion sensitivity of the Yellow River Basin in Zhongwei section in the spring,summer,autumn and winter of 2010,2015 and 2020 was analyzed by ArcGIS.The comprehensive sensitivity of soil erosion in the study area ranged from largest to smallest is spring,winter,autumn and summer.The terraced soil erosion in the Yellow River Basin is insensitive,the terrain undulation upper 200 m and the slope above 15°shows sensitive or extremely sensitive soil erosion,and the terrain undulation within 20 m and the slope within 5°shows insensitive soil erosion.Also,the factors that have a greater impact on the erosion sensitivity of the study area are rainfall and vegetation.
作者
许广河
张佳
仲佳鑫
刘君
黄玮
潘袁媛
Xu Guanghe;Zhang Jia;Zhong Jiaxin;Liu Jun;Huang Wei;Pan Yuanyuan(Ningxia Survey and Monitor Institute of Land and Resources,Yinchuan,Ningxia 750001;School of Environmental Studies,China University of Geosciences,Wuhan,Hubei 430074)
出处
《宁夏农林科技》
2022年第8期24-31,44,共9页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
宁夏自然科学基金(2020AAC03476)
第六批自治区青年科技人才托举工程。
