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- W2362505564 abstract "Soil erosion is the main reason for environment degradation globally.China is undergoing the severest erosion.Remote sensing is the only method that can monitor land exhaustively and directly by providing good coverage of the earth at a great range of scales.Since 1970s people have already utilized remote sensing to monitor soil erosion and do risk assessing.This paper tries to gather and review the currently remote sensing approaches in soil erosion monitoring.This paper describes several methods for effective erosion monitoring of large land areas,including: visual interpretation,vegetation index derivation,digital image classification,spectrum mixture modeling,digital elevation analysis obtained by orthorectified aerial photography.This paper discusses the dominances and limitations of these methods.We can choose a suitable method depending on the extent of erosion information obtained,application objectives,accessed data and other aspects.In China visual interpretation is the generalused method among these methods.Vegetation index derivation can be combined with soil erosion model well.Other methods were used less.With the development of remote sensing,it can be believed that remote sensing techniques would empower land managers to dynamically use satellite imagery for environmental management.The relationship of dynamic change detection and soil erosion mechanism,different resolution image integration use and microwave application in soil erosion monitoring should be paid more attention in coming research." @default.
- W2362505564 created "2016-06-24" @default.
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- W2362505564 date "2011-11-17" @default.
- W2362505564 modified "2023-09-28" @default.
- W2362505564 title "Overview of Remote Sensing Approaches to Soil Erosion Monitoring" @default.
- W2362505564 doi "https://doi.org/10.11873/j.issn.1004-0323.2005.5.537" @default.
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