Application of the steady-state principle of constant-head well permeameter to indirect subsurface drip irrigation

CORC > 水土保持研究所 > 中国科学院水利部水土保持研究所 > 水保所知识产出(1956-2013)

	Application of the steady-state principle of constant-head well permeameter to indirect subsurface drip irrigation
	Zhao Weixia ; Zhang Zhenhua ; Cai Huanjie
刊名	CANADIAN JOURNAL OF SOIL SCIENCE
	2009
卷号	89 期号:5 页码:CANADIAN JOURNAL OF SOIL SCIENCE
关键词	Constant-head well permeameter field-saturated hydraulic conductivity indirect subsurface drip irrigation steady-state
通讯作者	Zhao, WX
英文摘要	Weixia, Z., Huanjie, C., Zhenhua, Z. and Zhijie, S 2009. Application of the steady-state principle of constant-head well permeameter to indirect subsurface drip irrigation. Can. J. Soil Sci. 89: 671-676. Indirect subsurface drip irrigation (ISDI) is a method of increasing the irrigation water use efficiency of drip irrigation without the need to bury irrigation tubes and wet the soil surface. A major problem of ISDI is the mismatch between emitter discharge rate and water-conducting device dimension, which will result in over-filling of application water. In this paper, we propose to use the steady-state principle of Coll stant-head well permeameter (CHWP) to quantify the relationship between emitter discharge rate and water-conducting device dimension For ISDI. CHWP tests and ISDI tests were carried out in a 300 in 2 winter wheat fallow to verify its feasibility. The steady-state characteristic of these two methods was also studied using long-term infiltration. Results indicate that the equilibration time (110 min) in the ISDI tests was greater than that in the CHWP tests (30 min). The steady ponded depth in ISDI had a smaller variation than the steady water discharge rate in the CHWP. When using the steady-state principle of CHWP to design ISDI systems, there was significant linear correlation between predicted and measured ponded depth values (R(2) = 0.8379). The soil field-saturated hydraulic conductivity calculated by these two tests was approximately equal. These results demonstrate that the steady-state principle of CHWP could be used to select appropriate irrigation systems for ISDI, and ISDI provides another technique to obtain the field-saturated hydraulic conductivity.
收录类别	SCI
语种	英语
公开日期	2012-06-11
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/4794]
专题	水土保持研究所_水保所知识产出(1956-2013)
推荐引用方式 GB/T 7714	Zhao Weixia,Zhang Zhenhua,Cai Huanjie. Application of the steady-state principle of constant-head well permeameter to indirect subsurface drip irrigation[J]. CANADIAN JOURNAL OF SOIL SCIENCE,2009,89(5):CANADIAN JOURNAL OF SOIL SCIENCE.
APA	Zhao Weixia,Zhang Zhenhua,&Cai Huanjie.(2009).Application of the steady-state principle of constant-head well permeameter to indirect subsurface drip irrigation.CANADIAN JOURNAL OF SOIL SCIENCE,89(5),CANADIAN JOURNAL OF SOIL SCIENCE.
MLA	Zhao Weixia,et al."Application of the steady-state principle of constant-head well permeameter to indirect subsurface drip irrigation".CANADIAN JOURNAL OF SOIL SCIENCE 89.5(2009):CANADIAN JOURNAL OF SOIL SCIENCE.