干旱区生态环境知识资源中心(Arid): Study on the Farmland Improvement Effect of Drainage Measures under Film Mulch with Drip Irrigation in Saline-Alkali Land in Arid Areas

Arid

DOI	10.3390/su13084159
	Study on the Farmland Improvement Effect of Drainage Measures under Film Mulch with Drip Irrigation in Saline-Alkali Land in Arid Areas
	Zhao, Li; Heng, Tong; Yang, Lili; Xu, Xuan; Feng, Yue
通讯作者	Heng, T (corresponding author), Shihezi Univ, Coll Water & Architectural Engn, Shihezi 832003, Peoples R China. ; Heng, T (corresponding author), Key Lab Modern Water Saving Irrigat, Xinjiang Prod & Construct Grp, Shihezi 832003, Peoples R China.
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2021
卷号	13 期号:8
英文摘要	Water scarcity and imbalances in irrigation and drainage are the main factors leading to soil salinization in arid areas. There is a recognized need for effective drainage measures to prevent and improve saline-alkali land. The principal objective of this project was to investigate the effects of drainage measures on soil desalination and farmland drainage in the process of improving saline-alkali soils; these measures included subsurface pipe drainage (SPD) and open ditch drainage (ODD). The results of the tests, conducted over two years, revealed that the soil desalination rate in the SPD test area was between 25.8% and 35.2%, the cotton emergence rate was 36.7%, and a 3.8 t hm(-2) seed cotton yield could be obtained. The soil electrolytic conductivity (EC) decreased step by step over time, and the average annual decrease reached 10 dS m(-1). The degree of soil salinization was reduced from a moderately saline soil level (8-15 dS m(-1)) to a weakly saline soil level (4-8 dS m(-1)). Thus, the phased goal of improving saline-alkali land was achieved. The soil desalination rate in the ODD test area was only 1/10 of the SPD area; high soil EC (9-12 dS m(-1)) and groundwater level (2-3 m) were the most limiting factors affecting cotton growth in the ODD test area. The current results show that the critical depth of groundwater level affecting farmland secondary salinization is 4 m. In order to improve the salt discharge standard, SPD technology should be used on the basis of ODD. For salt that has accumulated in the soil for a long time, the technical mode of drip irrigation and leaching, followed by SPD drainage, in combination with the current irrigation system can achieve the goal of sustainable agriculture development.
英文关键词	subsurface pipe drainage open ditch drainage soil desalination saline− alkali land drip irrigation sustainable
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000645361300001
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351834
作者单位	[Zhao, Li; Heng, Tong; Yang, Lili; Xu, Xuan; Feng, Yue] Shihezi Univ, Coll Water & Architectural Engn, Shihezi 832003, Peoples R China; [Zhao, Li; Heng, Tong; Yang, Lili; Xu, Xuan; Feng, Yue] Key Lab Modern Water Saving Irrigat, Xinjiang Prod & Construct Grp, Shihezi 832003, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Li,Heng, Tong,Yang, Lili,et al. Study on the Farmland Improvement Effect of Drainage Measures under Film Mulch with Drip Irrigation in Saline-Alkali Land in Arid Areas[J],2021,13(8).
APA	Zhao, Li,Heng, Tong,Yang, Lili,Xu, Xuan,&Feng, Yue.(2021).Study on the Farmland Improvement Effect of Drainage Measures under Film Mulch with Drip Irrigation in Saline-Alkali Land in Arid Areas.SUSTAINABILITY,13(8).
MLA	Zhao, Li,et al."Study on the Farmland Improvement Effect of Drainage Measures under Film Mulch with Drip Irrigation in Saline-Alkali Land in Arid Areas".SUSTAINABILITY 13.8(2021).