Soil Erosion Spatial Distribution Character of Sloping Field in the Sichuan Hilly Basin:Taking a Cultivated Slope in Neijiang as Example  

作　　者：ZHENG Jinjun QI Yongqing HUA Lizhong HE Xiubin ZHANG Xinbao 

机构地区：[1]Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China [2]Graduate University of Chinese Academy of Sciences,Beijing 100049, China [3]Institute of Earth Environment, Chinese Academy ofSciences/State Key Laboratory of Loess and Quaternary Geology,Xi＇an 710075, Shaanxi, China

出　　处：《Wuhan University Journal of Natural Sciences》2006年第4期984-988,共5页武汉大学学报（自然科学英文版）

基　　金：SupportedbytheNationalBasicResearchProgramofChina(973Program,G2003CB415201)(2003CB415201),theNationalNaturalScienceFoundationofChina(40271015)andtheInternationalAtomicEnergyAgency(12322/RO).

摘　　要：^137Cs nuclear tracing technique was used to estimate rates of soil redistribution on a sloping field with traditional erosion control measures located near Shangqiao Village, Neijiang City, in the Sichuan Hilly Basin of China. The downslope changes of ^137 Cs inventory and its corresponding soil erosion rates in the sloping field show a rolling trend and have two peak values in two inflexions of the sloping field, these result reflects that the changes of microphysiognomy play a key role on the spatial soil redistribution of the sloping field.^137Cs nuclear tracing technique was used to estimate rates of soil redistribution on a sloping field with traditional erosion control measures located near Shangqiao Village, Neijiang City, in the Sichuan Hilly Basin of China. The downslope changes of ^137 Cs inventory and its corresponding soil erosion rates in the sloping field show a rolling trend and have two peak values in two inflexions of the sloping field, these result reflects that the changes of microphysiognomy play a key role on the spatial soil redistribution of the sloping field.

关 键 词：the Sichuan Hilly Basin ^137CS soil erosion rates micro-physiognomy 

分 类 号：S157[农业科学—土壤学]