[1]聂勇,范建容,杨阿强.重庆市开县土壤侵蚀自动评价研究[J].水土保持研究,2007,14(03):109-111.
 NIE Yong,FAN Jian-rong,YANG A-qiang.A Study on Auto-assessing Soil Erosion in Kaixian of Chongqing[J].,2007,14(03):109-111.
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重庆市开县土壤侵蚀自动评价研究()
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《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]

卷:
14卷
期数:
2007年03期
页码:
109-111
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
A Study on Auto-assessing Soil Erosion in Kaixian of Chongqing
作者:
聂勇12 范建容1 杨阿强12
1. 中国科学院、水利部成都山地灾害与环境研究所, 成都, 610041;
2. 中国科学院研究生院, 北京, 100039
Author(s):
NIE Yong12 FAN Jian-rong1 YANG A-qiang12
1. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Resource, Chengdu 610041, China;
2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
关键词:
遥感GIS土壤侵蚀
Keywords:
RSGISsoil erosion
分类号:
S157.1
摘要:
本次土壤侵蚀自动评价采用TM卫星影像,通过人机交互目视解译获取土地利用信息,应用数字高程模型(DEM)生成坡度图,从TM影像提取NDVI,利用像元二分模型得到植被覆盖度,运用GIS强大的空间分析功能,建立土壤侵蚀强度评判模型,自动评价生成开县的土壤侵蚀强度分级图.对评价的结果进行了分析,结果符合开县的土壤侵蚀实际情况,研究表明土壤侵蚀自动评价方法可行.
Abstract:
In the auto-assessing of soil erosion,TM remote sensing images are basic information and the land use map can be gained by man-machine interactive visual interpretation method.The slope ranking map is derived from DEM and normalized deference vegetation index(NDVI) is extracted from TM images,then the vegetation fraction can be estimated from NDVI through the dimidiate pixel model.After establishing the judgment model of soil erosion intensity,the model auto-generates the soil erosion in Kaixian with the powerful function of spatial analysis of geographic information system.It provides the analysis of the soil erosion intensity data,which suits the actual situation in Kaixian,so the method of auto-assessing is appropriate.

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备注/Memo

备注/Memo:
收稿日期:2006-6-1
基金项目:国家重点基础研究发展计划项目(2003CB415202、2006CB403203)资助
作者简介:聂勇(1981- ),男,硕士,主要从事遥感与地理信息系统的应用及山地侵蚀等领域的研究工作.
更新日期/Last Update: 1900-01-01