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	Incorporation of ridge and furrow method of rainfall harvesting with mulching for crop production under semiarid conditions
	Li, XY; Gong, JD; Gao, QZ; Li, FR
刊名	AGRICULTURAL WATER MANAGEMENT
	2001-09-20
卷号	50期号:3页码:173-183
关键词	ridge and furrow rainfall harvesting mulch semiarid region NW China
ISSN号	0378-3774
通讯作者	Li, XY()
英文摘要	A plastic-covered ridge and furrow rainfall harvesting (PRFRH) system combined with mulches was designed to increase water availability to crops for improving and stabilizing agricultural production in the semiarid Loess region of northwest China. The system was built by shaping the soil surface with alternate ridges and furrows along the contour. The plastic-covered ridges served as a rainfall harvesting zone and furrows as a planting zone. Some materials were also used to mulch the furrows to increase the effectiveness of the harvested water. This system can make better utilization of light rain by harvesting rainwater through the plastic-covered ridge. The field experiment (using corn as an indicator crop) showed that grain yields in the PRFRH system with mulches in 1998 and 1999 were significantly higher than the controls. with an increase of 4010-5297 kg per ha (108-143%). In most treatments, the water use efficiencies (WUE) were in excess of 2.0 kg m(-3). The WUE values of corn in this system were 1.9 times greater than the controls in 1998 and 1.4 times greater than the controls in 1999. The plastic-covered ridge led to a yield increase of 3430 kg per ha (92%) in 1998 and of 1126 kg per ha (21%) in 1999 compared with the uncovered ridge. On average, the additional mulches in the furrow brought about a yield increase of 8-25%. Based on the results of this study and other researches, this technique can increase corn grain yield by 60-95% in drought and average years, 70-90% in wet years, and 20-30% in very wet years. The PRFRH system had the potential to increase crop yield and produced greater economic benefit, therefore it could be used in regions dominated by light rainfall of low intensity where crops generally fail due to water stress. (C) 2001 Published by Elsevier Science B.V.
收录类别	SCI
WOS关键词	REGION ; CHINA
WOS研究方向	Agriculture ; Water Resources
WOS类目	Agronomy ; Water Resources
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000170475500002
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556677
专题	寒区旱区环境与工程研究所
通讯作者	Li, XY
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Li, XY,Gong, JD,Gao, QZ,et al. Incorporation of ridge and furrow method of rainfall harvesting with mulching for crop production under semiarid conditions[J]. AGRICULTURAL WATER MANAGEMENT,2001,50(3):173-183.
APA	Li, XY,Gong, JD,Gao, QZ,&Li, FR.(2001).Incorporation of ridge and furrow method of rainfall harvesting with mulching for crop production under semiarid conditions.AGRICULTURAL WATER MANAGEMENT,50(3),173-183.
MLA	Li, XY,et al."Incorporation of ridge and furrow method of rainfall harvesting with mulching for crop production under semiarid conditions".AGRICULTURAL WATER MANAGEMENT 50.3(2001):173-183.

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