长江科学院院报2016，Vol.33Issue(11)：21-27,7.DOI:10.11988/ckyyb.20160810
3S技术支持下的汝溪河水土流失动态监测及分析
Dynamic Monitoring and Analysis on the Changes of Soil and Water Loss of Ruxi River Based on 3S Technology
摘要
Abstract
In the aim of providing basic data and decision-making basis for soil and water conservation work,we car-ried out dynamic monitoring on soil and water loss and ecological environment under the support of RS, GIS and GPS technologies. With Ruxi River in Three Gorges Reservoir region as study area, we obtained the pattern, inten-sity and distribution of soil erosion through spatial overlay based on information of land-use types, vegetation cover-age and slope gradient.According to Classification standard of soil erosion, we analyzed the dynamic changes of soil and water loss in 2014 and 2015, and adopted transfer matrix to analyze the area and types of land-use changes. Results suggest that from 2014 to 2015,although the land-use patterns of Ruxi River have experienced structural ad-justment, the distribution of soil and water loss were generally stable. The area of microsoil erosion was slightly in-creased, the area of mild and intense soil erosion kept balance,the area of moderate soil erosion was slightly re-duced, and the extremely or severe conditions have been alleviated.关键词
水土流失/动态监测/3S技术/三峡库区汝溪河/土壤侵蚀/转移矩阵Key words
water and soil loss/dynamic monitoring/3S technology/Ruxi River in Three Gorges Reservoir region/soil erosion/transfer matrix分类
农业科技引用本文复制引用
张穗,姜莹,李喆..3S技术支持下的汝溪河水土流失动态监测及分析[J].长江科学院院报,2016,33(11):21-27,7.基金项目
长江流域国家重点防治区2016年度水土流失动态监测项目(CKSK2016341/KJ) （CKSK2016341/KJ）
中央级公益性科研院所基本科研业务费项目(CKSF2015019/KJ,CKSF2016006/KJ) （CKSF2015019/KJ,CKSF2016006/KJ）
