定量遥感支的持下的磐石市土壤侵蚀动态监测1.pdf

29 6 V ol . 29, No . 6 2009 12 Bulletin of So il and Water Co nserv atio n Dec. , 2009 岳书平, 闫业超 , 2 10044) : 1979 M SS 2002 ET M , GIS , , , 1979) 2002 , , , , : ; ; ; ; : A : 1000- 2 88X 2009) 06- 0126- 05 : F 323. 1 Soil Erosion Dynamic Detection in Panshi City Based on Quantitative Remote Sensing Y U E Shu- ping, Y A N Y e- chao (College of Remote S ensing , N anj ing University of I nf ormation S cience Technology N anj ing , J iangs u 2 10044, China) Abstract: Based on the M SS images in 1979 and ET M dat a in 2002, soil er osion change in Panshi Cit y is st udied w it h t he aid of R S and GIS . T he sub- pixel m odels are u sed t o est imat e veget at ion coverage and t hen landuse and slope info rmat io n is com bined t o st udy reg ional soil erosio n change. Result s show t hat f rom 1979 to 2002, soil er osion becam e m ore seriou s and t he m ain so il ero sion region w as gradually ex panded and it s ar- ea w as increased. T his met ho d is highly ef ficient and can impr ove the speed and eff iciency of regional soil ero- sion mo nit oring. It is an ef fective w ay t o st udy reg ional so il erosio n. Keywords: fractional green vegetation cover sub-pixel model soil erosion dynamic detection Panshi City 1 , , , , [ 1] , , [ 2] , 125b35c )