中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Vertical migration of soil constituents due to lateral soil movement under long-term tillage systems

文献类型:期刊论文

作者Zhang ZH(张泽洪)1,2,3; Zhang JH(张建辉)1; Wang Y(王勇)1,3
刊名International Agricultural Engineering Journal
出版日期2016
卷号25期号:4页码:41-51
关键词vertical migration soil constituents stratification ratio (SR) vertical migration coefficient (VMC) tillage erosion
ISSN号0858-2114
通讯作者张建辉
英文摘要

Research on the vertical migration of soil redistribution induced by tillage and the resultant effects on soil properties is limited for the slope land in non-mechanized agricultural areas. Both land-use types (uncultivated land and cultivated land) were selected in hilly areas of the Sichuan Basin, China to compare the vertical distribution of 137Cs and soil constituents and determine the vertical migration of soil constituents. The 137Cs data showed that vertical soil migration presented an increasing trend from the upper slope positions to the lower slope positions under the transport effect of tillage. The stratification ratio (SR) of soil constituents showed that the mixing effect of tillage resulted in the uniform distribution of soil organic matter (SOM), total nitrogen (TN), available nitrogen (AN), total phosphorus (TP), and available phosphorus (AP) across the soil profile. For SOM, TN, and AN, the vertical migration coefficients (VMCs) were less than 1.0 in the plough layer and more than 1.0 below the plough layer, suggesting that soil constituents were migrated downward from the plough layer to the subsoil(20-35 cm)due to tillage inversion at the middle and lower slope positions, but little migration due to tillage erosion at the upper slope positions. Vertical migration of soil constituents increased from the upper slope positions to the lower slope positions under the transporting effect of tillage. This shows that landscape positions exerted an important impact on the vertical migration of soil constituents. The study indicates that lateral and vertical soil redistribution by the inversion and transport effect of tillage causes the vertical migration of soil constituents and their lateral variability.

收录类别EI
原文出处http://www.iaej.cn/EN/abstract/abstract406.shtml#
语种英语
源URL[http://ir.imde.ac.cn/handle/131551/17767]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Conservancy, Chengdu 610041, China
2.School of Land and Resources, China West Normal University, Nanchong 637009, China
3.Graduate School of the Chinese Academy of Sciences, Beijing 100049, China)
推荐引用方式
GB/T 7714
Zhang ZH,Zhang JH,Wang Y. Vertical migration of soil constituents due to lateral soil movement under long-term tillage systems[J]. International Agricultural Engineering Journal,2016,25(4):41-51.
APA Zhang ZH,Zhang JH,&Wang Y.(2016).Vertical migration of soil constituents due to lateral soil movement under long-term tillage systems.International Agricultural Engineering Journal,25(4),41-51.
MLA Zhang ZH,et al."Vertical migration of soil constituents due to lateral soil movement under long-term tillage systems".International Agricultural Engineering Journal 25.4(2016):41-51.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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