干旱区生态环境知识资源中心(Arid): Soil salt balance in a cotton field under drip irrigation and subsurface pipe drainage systems

Arid

DOI	10.1002/agj2.20899
	Soil salt balance in a cotton field under drip irrigation and subsurface pipe drainage systems
	Heng, Tong; Feng, Gary; Yang, Li-Li; He, Xin-Lin; Yang, Guang; Li, Fa-Dong; Xu, Xuan; Feng, Yue
通讯作者	He, XL ; Yang, G (corresponding author), Shihezi Univ, Coll Water & Architectural Engn, Shihezi, Peoples R China.
来源期刊	AGRONOMY JOURNAL
ISSN	0002-1962
EISSN	1435-0645
出版年	2021
卷号	113 期号:6 页码:4875-4888
英文摘要	Soil salinization is a vital factor limiting crop yield in dryland oasis cropland. A film-mulched drip irrigation and subsurface pipe drainage (MDI-SPD) system has been proved to be highly efficient at mitigating salination globally. However, the soil salt balance in time and spatial dimension is unclear in this system. A MDI-SPD experiment was conducted for 4 yr (2015-2019) in a field in Manas River Basin, western China. The subsurface drainage pipes were installed at a depth of 1 m with a space of 15 m. Three long-term observation points were set at 0, 5, and 7.5 m horizontal from the subsurface pipe and served as long-term observation points in 0-to-20-, 60-to-80-, and 180-to-200-cm soil layers. Results after 4 yr indicated that the total salt output in the irrigated area was 260 t, with 103 t of salt drained by the subsurface pipe (40% of the total salt output in the irrigation area), and the seed cotton yield increased by 52%. Soil salt balance indicated desalination. The electrical conductivity (EC) of subsurface pipe drainage was positively correlated with drainage flow and salt discharge and negatively correlated with drainage discharge and time (P < .05). If salt leaching stops, soil EC at the 0-to-200-cm depth could reach 15 dS m(-1) in 8 yr. Thus, two or three uses of MDI-SPD measures in the next 8 yr should suffice to maintain the soil salt at a low concentration. An increase in shaft drainage would also reduce the deep seepage of salt.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000721783900001
WOS关键词	WATER ; SALINITY ; MULCH ; CROP ; YIELD ; SALINIZATION ; MANAGEMENT ; DYNAMICS ; DISTRICT ; NITROGEN
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/373885
作者单位	[Heng, Tong; Yang, Li-Li; He, Xin-Lin; Yang, Guang; Xu, Xuan; Feng, Yue] Shihezi Univ, Coll Water & Architectural Engn, Shihezi, Peoples R China; [Feng, Gary] USDA ARS, Genet & Sustainable Agr Res Unit, 810 Hwy 12 East, Mississippi State, MS 39762 USA; [Li, Fa-Dong] Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China; [Li, Fa-Dong] Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Heng, Tong,Feng, Gary,Yang, Li-Li,et al. Soil salt balance in a cotton field under drip irrigation and subsurface pipe drainage systems[J],2021,113(6):4875-4888.
APA	Heng, Tong.,Feng, Gary.,Yang, Li-Li.,He, Xin-Lin.,Yang, Guang.,...&Feng, Yue.(2021).Soil salt balance in a cotton field under drip irrigation and subsurface pipe drainage systems.AGRONOMY JOURNAL,113(6),4875-4888.
MLA	Heng, Tong,et al."Soil salt balance in a cotton field under drip irrigation and subsurface pipe drainage systems".AGRONOMY JOURNAL 113.6(2021):4875-4888.