Р ~。 Hon91Р (1Institutefor Sensing Application 0Guilin TechnologyGuilinGuangxi541004ChinaР 2Center’ Sensing GuangxiNanningGuangxi。Р: order provide certain basis and support the study desertificationРdevelopment and evolution southwest China karst , paper takes the karst undergroundРriver basin the study and image two different periods extract information Рthree natural factors !猻, and landuseР.珿 pare the erosion condition two periodsР the study , reference erosion 甌 shows Рthe steeper the slope the and intense the erosion and the conРtrois erosion intensityInorder and erosion areathe protectР and woodsAs the landusetypebecause changes , Р痶 great the erosion intensityIt the study can provide referenceРfor the local 瑂, and eroР.РKey wordssoil籯 areaRSslopevegetationcoveragelanduseMaocunGuilin
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