SWAT模型及其应用.PDF

11 4 . 11 . 4 Vo l N o 2004 12 Resear ch o f Soil and Water Con serv ation Dec. , 2004 SWA T 1, 2 1, 2 丁晋利 , 郑粉莉 ( 1. , 7 12 100 2. , 7 12 100) : SW A T G IS RS , , SW A T , : SW A T : S 157. 1: A : 1005 -3409( 2004) 04 -0 12 8-03 SWAT Model and Its Appli cation 1, 2 1, 2 - , - DIN G J in li ZHEN G Fen li ( 1. The State K ey L aboratory of Soil Erosion and Dryland Farming on L oess P lateau, , , , 7 12 100, Institute of Soil and Water Conserv ation CA S M W Yangling Shaanxi China 2 . - , , 7 12100 , ) N orthw est Sci tech University of A griculture Forestry Yang ling Shaanxi China Abstract: SW A T modle physically b ased is the acr ony m f or So il a nd Water A ssessm ent T oo l , dev elo ped by the U SDA . By u sing GI S a nd RS , SW A T w a s develop ed t o pr edict the imp act of land m anag em ent pr actices on w ater , sedim ent and ag ricultural chem ical yields in lar ge co mplex w ater sheds w ith var ying soils, land u se and m anag em ent conditio n s in the long - ter m . T he SW AT mo del enables user s to stu dy long -ter m imp act s . T he pr inciple, str uctur e, appliance and asses