西昌攀枝花高速公路弃土场土壤侵蚀预报-自然灾害学报.PDFVIP

16 1 V o.l 16, No. 1 2007 2 JOURNA L OF NATURAL D ISA STER S F eb. 2007 : 1004- 4574 ( 2007 01- 0109- 04 1 2 陈廷方, 崔 鹏 ( 1. , 62 1002; 2. / , 6 1004 1 : , , , , : ; ; : TU 413. 6+ 2 : A Prediction of soil erosion on dum p yard of Xichang- Panzhihua expressway 1 2 CHEN T ing-fang , CU I P eng ( 1. Col lege of Environm en t and R esources, Sou thw est U n ivers ity of S cience and T echn ology, M iany ang 62 1002, Ch ina; 2. Inst itu te ofM oun tain H azards and Env ironm en t, Ch in ese A cadem y of Sciences/M in istry of W ater Conservan cy, Ch engdu 6 1004 1, Ch ina Abstract: In order to invest igate the behavior o f so il erosion on slope o f dum p yard o f X ichang- Panzh ihua express- w ay during construction, the expermi ent of so il erasion w ith natural rainfa ll on X ichang- P anzhihua expressw ay w as conducted. T he resu lts show that the m a in type of so il erosion is gu lly erosion, the amount of so il erosion cau sed by gu lly erosion is h igher than that by surface erosion. T he principa l facto r causing so il erosion on the slope is ind iv idu- al am ount o f precipitation and the w idth of the flat roof. F inally, a m ode l to predict soil erosion on the slope o f dum p yard of X ichang- Panzh ihua expressw ay w as g iven. K eywords: dum p yard;