IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Assessing Soil Erosion Rates on Manually-Tilled Hillslopes in the Sichuan Hilly Basin Using ~(137)Cs and ~(210)Pb_(ex) Measurements
ZHENG JinJun1; HE XiuBin1; D WALLING1; ZHANG XinBao1; D FLANAGAN2; QI YongQing3
2007
Source PublicationPedosphere
ISSN1002-0160
Volume37Issue:3Pages:273
AbstractPurple soils are widely distributed in the Sichuan Hilly Basin and are highly susceptible to erosion, especially on the cultivated slopes. Quantitative assessment of the erosion rates is, however, difficult due to small size of the plots of the manually-tilled land, the complex land use, and steep hillslopes. ~(137)Cs and ~(210)Pb_(ex) (excess ~(210)Pb) tracing techniques were used to investigate the spatial pattern of soil erosion rates associated with slope-land under hoe tillage in Neijiang of the Sichuan Hilly Basin. The ~(137)Cs and ~(210)Pb_(ex) inventories at the top of the cultivated slope were extremely low, and the highest inventories were found at the bottom of the cultivated slope. By combining the erosion rates estimates provided by both ~(137)Cs and ~(210)Pb_(ex) measurements, the weighted mean net soil loss from the study slope was estimated to be 3100 t km~(-2) year~(-1), which was significantly less than 6930 t km~(-2) year~(-1) reported for runoff plots on a 10°cultivated slope at the Suining Station of soil Erosion. The spatial pattern of soil erosion rates on the steep agricultural land showed that hoe tillage played an important role in soil redistribution along the slope. Also, traditional farming practices had a significant role in reducing soil loss, leading to a lower net erosion rate for the field.
Language英语
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/31545
Collection山地表生过程与生态调控重点实验室
Affiliation1.中国科学院成都山地灾害与环境研究所
2.USDA-ARS National Soil Erosion Research Laboratory, West Lafayette
3.中国科学院
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
ZHENG JinJun,HE XiuBin,D WALLING,et al. Assessing Soil Erosion Rates on Manually-Tilled Hillslopes in the Sichuan Hilly Basin Using ~(137)Cs and ~(210)Pb_(ex) Measurements[J]. Pedosphere,2007,37(3):273.
APA ZHENG JinJun,HE XiuBin,D WALLING,ZHANG XinBao,D FLANAGAN,&QI YongQing.(2007).Assessing Soil Erosion Rates on Manually-Tilled Hillslopes in the Sichuan Hilly Basin Using ~(137)Cs and ~(210)Pb_(ex) Measurements.Pedosphere,37(3),273.
MLA ZHENG JinJun,et al."Assessing Soil Erosion Rates on Manually-Tilled Hillslopes in the Sichuan Hilly Basin Using ~(137)Cs and ~(210)Pb_(ex) Measurements".Pedosphere 37.3(2007):273.
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