干旱区生态环境知识资源中心(Arid): Eight-year comparison of agroeconomic benefits of open ditch and subsurface pipe drainage in mulched drip irrigated saline-sodic farmland

Arid

DOI	10.1007/s00271-022-00827-6
	Eight-year comparison of agroeconomic benefits of open ditch and subsurface pipe drainage in mulched drip irrigated saline-sodic farmland
	Bai, Zhentao; Liu, Hongguang; Li, Jing; Li, Mingsi; Gong, Ping; Li, Pengfei; Li, Ling
通讯作者	Liu, HG
来源期刊	IRRIGATION SCIENCE
ISSN	0342-7188
EISSN	1432-1319
出版年	2023
卷号	41 期号:5 页码:687-699
英文摘要	Because of the presence of shallow water tables and consequent secondary salinization in irrigated areas of Xinjiang China, there is an urgent need for installation of drainage systems to control the salinity levels in the crop rootzone. The goal of this study was to compare the midterm effects of the open ditch (depth of 2.2 m) and subsurface pipe (depth of 2.2 m) drainages on soil salinity, drainage, groundwater, cotton biomass, yield, and economic benefits while using drip irrigation under mulch (plastic film). We conducted a field experiment for eight consecutive years (2012-2019) in Shawan County of Xinjiang, China. Our experimental results indicated that open ditch and subsurface pipe drainages each reduced total soil salinity, improved saline-sodic soils, and controlled groundwater level, which caused a significant increase in the cotton biomass and yield. The open ditch drainage treatment (ODDA) represented a better desalination effect than the subsurface pipe drainage treatment (SPDA) at 73% and 81%, respectively. The electrical conductivity and pH of ODDA and SPDA water samples decreased as the soil salinities decreased over time. We used the farmland conditions from 2012 as the baseline for our experiment and evaluated how these baseline conditions changed over time in response to these treatments. Compared to this baseline, the cotton yield of ODDA and SPDA treated farmland increased by 18.30 times and 19.96 times in 2019, respectively. The investment payback periods for ODDA and SPDA treatments were 7.59 and 6.34 years, respectively, and their returns on investment were 12% and 30%, respectively. The midterm economic benefits of subsurface pipe drainage were more prominent than those of open ditch drainage. These results provide a reference for improving, developing, and utilizing soil saline-sodic land, and the sustainable development of agriculture in arid areas.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000859576900001
WOS关键词	AGRICULTURAL LAND ; SOIL-SALINITY ; LINT YIELD ; COTTON ; GROUNDWATER ; DYNAMICS ; WATER
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397073
推荐引用方式 GB/T 7714	Bai, Zhentao,Liu, Hongguang,Li, Jing,et al. Eight-year comparison of agroeconomic benefits of open ditch and subsurface pipe drainage in mulched drip irrigated saline-sodic farmland[J],2023,41(5):687-699.
APA	Bai, Zhentao.,Liu, Hongguang.,Li, Jing.,Li, Mingsi.,Gong, Ping.,...&Li, Ling.(2023).Eight-year comparison of agroeconomic benefits of open ditch and subsurface pipe drainage in mulched drip irrigated saline-sodic farmland.IRRIGATION SCIENCE,41(5),687-699.
MLA	Bai, Zhentao,et al."Eight-year comparison of agroeconomic benefits of open ditch and subsurface pipe drainage in mulched drip irrigated saline-sodic farmland".IRRIGATION SCIENCE 41.5(2023):687-699.