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Effects of tillage practices and slope on runoff and erosion of soil from the Loess Plateau, China, subjected to simulated rainfall

文献类型：期刊论文

作者Wu, Faqi1,2; Wang, Linhua1; Dalabay, Nurmolda1; Lu, Pei1; Wu, FQ (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China.
刊名SOIL & TILLAGE RESEARCH
出版日期2017
卷号166页码:147-156
关键词Tillage Practice Soil Erosion Reduction Benefits Plot Rainfall Simulation Loess Plateau
ISSN号0167-1987
DOI10.1016/j.still.2016.09.007
文献子类Article
英文摘要Soil erosion, particularly during summer fallow period, in sloped farmland has been identified as a critical threat to sustainable agricultural development in the Loess Plateau of China. However, the effects of varying tillage practices during the summer fallow period have not been fully investigated. The objective of this study was to determine the effects of tillage practices on runoff and sediment loss under plot (4.0 m in length and 1.0 m in width) rainfall simulations. Runoff initiation time, runoff amount, sediment loss and cumulative infiltration amount were recorded. One rainfall intensity (90 mm h(-1), 40 min), three slopes (5 degrees,10 degrees, and 15 degrees) and four prevalent tillage practices (Artificial Digging, AD; Artificial Hoeing, AH; Contour Plow, CP; and Traditional Plow, TP) were studied. Two indices, runoff reduction benefits (RRB) and sediment reduction benefits (SRB), were selected to evaluate the effect of the practice on controlling runoff and sediment Compared to TP treatment, the AD, AH and CP were more effective in reducing the magnitude of runoff amount and sediment loss as well as increasing the rain water infiltration amount. CP with a 15 degrees slope was an exception in which the sediment loss increased. In general, the SRB was greater than the RRB for a given tillage practice under the same slope, suggesting that the benefits from sediment reduction were more effective than the benefits from runoff reduction. RRB and SRB were the largest for AD, followed by AH and CP, irrespective of slopes. The capacity of the three tillage practices to reduce runoff and sediment decreased as the slope increased. In particular, AD at a 5 degrees slope had the best performance in reducing runoff and sediment loss; however, SRB and RRB were -57% and 1%, respectively, for a CP plot with a 15 degrees slope. This finding suggested that CP had a higher sediment loss and a similar runoff amount compared to those of TP. These results of plot simulated rainfall will contribute to our knowledge about the effects of different tillage practices on soil erosion from sloped farmland. (C) 2016 Elsevier B.V. All rights reserved.
学科主题Agriculture
URL标识查看原文
出版地AMSTERDAM
语种英语
WOS记录号WOS:000391077900017
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China [41271288] ; National Natural Science Foundation of China [41271288] ; National Natural Science Foundation of China [41271288] ; National Natural Science Foundation of China [41271288]
源URL[http://ir.iswc.ac.cn/handle/361005/8030]  
专题水保所科研产出--SCI_2017--SCI
通讯作者Wu, FQ (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China.
作者单位1.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China
2.Northwest A&F Univ, Coll Resources & Environm, Yangling 712100, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Faqi,Wang, Linhua,Dalabay, Nurmolda,et al. Effects of tillage practices and slope on runoff and erosion of soil from the Loess Plateau, China, subjected to simulated rainfall[J]. SOIL & TILLAGE RESEARCH,2017,166:147-156.
APA Wu, Faqi,Wang, Linhua,Dalabay, Nurmolda,Lu, Pei,&Wu, FQ .(2017).Effects of tillage practices and slope on runoff and erosion of soil from the Loess Plateau, China, subjected to simulated rainfall.SOIL & TILLAGE RESEARCH,166,147-156.
MLA Wu, Faqi,et al."Effects of tillage practices and slope on runoff and erosion of soil from the Loess Plateau, China, subjected to simulated rainfall".SOIL & TILLAGE RESEARCH 166(2017):147-156.

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来源：水土保持研究所

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