| Soil Erosion Spatial Distribution Character of Sloping Field in the Sichuan Hilly Basin： Taking a Cultivated Slope in Neijiang as Example |
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| 作者姓名： | ZHENG Jinjun QI Yongqing HUA Lizhong HE Xiubin ZHANG Xinbao |
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| 作者单位： | [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 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);国家自然科学基金 |
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| 摘 要： | 0IntroductionNeijiang City locates in the south of The SichuanHilly Basin.The Sichuan Hilly Basin is underlainby horizontally bedded Mesozoic mudstones,siltstonesand sandstones.Purple soils developed on these rapidlyweathering rocks are widely distributed across the basin.According to second state soil erosion surveys based onremote sensing,the soil erosion rates in local area aretypicallyinthe range of3000-5000t·km-2·a-11,2].Inthe Sichuan Hilly Basin,one sloping field may is com-pose…
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| 关 键 词： | 四川盆地 重金属污染 土壤腐蚀速率 微地貌 内江 水土保持 |
| 文章编号： | 1007-1202（2006）04-0984-05 |
| 收稿时间： | 2005-12-10 |
Soil erosion spatial distribution character of sloping field in the Sichuan Hilly Basin: Taking a cultivated slope in Neijiang as example |
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| ZHENG Jinjun QI Yongqing HUA Lizhong HE Xiubin ZHANG Xinbao.Soil erosion spatial distribution character of sloping field in the Sichuan Hilly Basin: Taking a cultivated slope in Neijiang as example[J].Wuhan University Journal of Natural Sciences,2006,11(4):984-988. |
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| Authors: | Zheng Jiniun Qi Yongging Hua Lizhong He Xiubin Zhang Xinbao |
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| Institution: | (1) Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, 610041 Chengdu, Sichuan, China;(2) Graduate University of Chinese Academy of Sciences, 100049 Beijing, China;(3) Institute of Earth Environment, Chinese Academy of Sciences/State Key Laboratory of Loess and Quaternary Geology, 710075 Xi'an, Shaanxi, China |
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| Abstract: | ^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. |
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| Keywords: | the Sichuan Hilly Basin 137Cs soil erosion rates micro-physiognomy |
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