Amelioration of takyric solonetz using drip irrigation with soil-water-redistribution medium*

doi:10.1002/ird.2644

	Amelioration of takyric solonetz using drip irrigation with soil-water-redistribution medium*
	Huang, Pengfei 2,3; Kang, Yaohu 1,2; Wan, Shuqin 2; Li, Xiaobin 2
刊名	IRRIGATION AND DRAINAGE
	2021-09-20
页码	12
关键词	cations microirrigation soil matric potential soil reclamation soil water takyric solonetz
ISSN号	1531-0353
DOI	10.1002/ird.2644
通讯作者	Kang, Yaohu(kangyh@igsnrr.ac.cn)
英文摘要	Takyric solonetz is a highly saline-sodic soil with poor soil structure and a saturated hydraulic conductivity close to zero. Drip irrigation, soil-water-redistribution medium (RM), ridge planting and film mulching have been successfully used to ameliorate such soils. Here, we compared soil moisture and cation distribution during the amelioration with planting years of 1, 3, 4, 5 and 6. A suitable root zone with low electrical conductivity, pH and sodium absorption ratio was quickly and continuously formed in the arid area. An irrigation regime with a decreasing soil matric potential threshold of -5 to -20 kPa in improving years 1-4 and stabilized at -20 kPa was feasible. The wetting front kept moving downward with time, and the dry soil layer in the middle of the profile gradually disappeared after 4 years. In the initial 4 years, the Na+ in the root zone leached mainly to the top layer of ridge slope and furrow. And then the Na+ leached downward. The spatial distribution of soil water and Na+ indicated that soil permeability improved with time, and significant changes occurred after the fifth year.
资助项目	Key Research Programme of Frontier Sciences of the Chinese Academy of Sciences[QYZDJ-SSW-DQC028] ; National Key Research and Development Programme of China[2016YFC0501305] ; National Key Research and Development Programme of China[2016YFC0501304]
WOS关键词	SALINE-SODIC SOIL ; SOLUBLE CATIONS ; CALCAREOUS SOIL ; RECLAMATION ; L. ; DISPERSION ; GROWTH ; YIELD
WOS研究方向	Agriculture ; Water Resources
语种	英语
出版者	WILEY
WOS记录号	WOS:000697924400001
资助机构	Key Research Programme of Frontier Sciences of the Chinese Academy of Sciences ; National Key Research and Development Programme of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/165695]
专题	中国科学院地理科学与资源研究所
通讯作者	Kang, Yaohu
作者单位	1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, 11A Datun Rd, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Huang, Pengfei,Kang, Yaohu,Wan, Shuqin,et al. Amelioration of takyric solonetz using drip irrigation with soil-water-redistribution medium*[J]. IRRIGATION AND DRAINAGE,2021:12.
APA	Huang, Pengfei,Kang, Yaohu,Wan, Shuqin,&Li, Xiaobin.(2021).Amelioration of takyric solonetz using drip irrigation with soil-water-redistribution medium*.IRRIGATION AND DRAINAGE,12.
MLA	Huang, Pengfei,et al."Amelioration of takyric solonetz using drip irrigation with soil-water-redistribution medium*".IRRIGATION AND DRAINAGE (2021):12.