%0 Journal Article
%T Soil Erosion Law Based on Cs-137 Tracer Method in Typical Slope, Tiantai County, Zhejiang Province<br>用Cs-137示踪法研究浙江天台县典型坡面的土壤侵蚀规律
%A NIE Guo-hui
%A YE Yong-qi
%A YE Sui-gao
%A KAI Mei-ling
%A <br>聂国辉
%A 叶永棋
%A 叶碎高
%A 开美玲
%J 土壤
%D 2009
%I 
%X Cs-137 tracer method is simple, rapid and accurate, which has been widely used in soil erosion research. This article, taking Tiantai County as an example on the basis of non-farming soil erosion model, obtained the background value of Cs-137 (2382.02 Bq/m2) and soil Cs-137 profile distribution function (243.73e-0.113z), and also analyzed soil erosion and deposit law in different positions simultaneously. The results showed that soil erosion mainly occurred in the topsoil within 20 cm and the net loss of topsoil was higher than those of the middle and below slope locations, soil deposition occurred in the neighborhood of the foot - slope. Soil erosion rate at the different locations in the slope didn't increase with the length of slope simply, but changed with the surface vegetation structure and coverage.
%K Cs-137 tracer method
%K Typical slope
%K The background value of Cs-137
%K Tiantai County of Zhejiang Province<br>Cs-137示踪法
%K 典型坡面
%K Cs-137背景值
%K 浙江省天台县
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=56F69E970C6E5190CDB409D28DD0E3C6&aid=0F6CE54F30FE686616652180F044A11D&yid=DE12191FBD62783C&vid=2001E0D53B7B80EC&iid=0B39A22176CE99FB&sid=358F98408588E522&eid=F416A9924F23B020&journal_id=0253-9829&journal_name=土壤&referenced_num=0&reference_num=11