天山中段北麓盐渍化现状与成因-水土保持研究.PDF

10 3 . 10 . 3 Vo l N o 2003 9 Resear ch o f Soil and Water Conserv ation Sep. , 200 3 熊文成, 刘运明, 李有利 ( , , 100 87 1 : , , , : ; ; ; ; ; : S 156. 4 1; T P 79 : A : 1005-3409 ( 200 3 03-0097 -05 Situati on and Origin of Soil Salinization i n the North Front of the Central Ti anshan Mountains - , - , - X ION G Wen cheng L IU Y un m ing L I Y ou li ( M OE Laboratory f or Earth Surf ace Processes and Dep artment of Geograp hy, Peking Univ ersity, Beij ing 100871, hina Abstract: T he distr ibutio n , ex tensio n and deg r ee o f soil salinizat ion w a s analy zed by ey e int erpret atio n and computer automat - ically classif ication . T he r elation bet w een so il salinization and g eolo gy , geo mor pho lo gy , hydro lo gy , v eg etation and human ac- tiv ities w as discu ssed. In or der to car r y out land su stainable ut ilizatio n , some counter measur es are g iv en . Key words: soil salinizatio n ; geo mor pho log y; hy dr olo gy ; veg etation ; human activ ity ; T ianshan M ountains 2 1 , [ 1] 150200 mm , 2 000 , 3 000 mm , 1115 , , 4 7 , 56 % , [2] , 7 , 1 C , - 20 . 2 C, 7 27. 6 C , , 0. 7 m/ s, 20 m/ s 1. 4 5 m [ 3]