Evaluation of coastal farming under salinization and optimized fertilization strategies in China

doi:10.1016/j.scitotenv.2021.149038

	Evaluation of coastal farming under salinization and optimized fertilization strategies in China
	Xie, Hanyou 2,3; Li, Jing 2; Zhang, Yitao 2; Xu, Xiangbo 2,4; Wang, Lingqing 2; Ouyang, Zhu 1
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021-11-25
卷号	797 页码:11
关键词	Saline-alkali soil Net benefit Nitrogen management Salt effect Integrated analysis
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2021.149038
通讯作者	Li, Jing(jingli@igsnrr.ac.cn)
英文摘要	Nitrogen (N) application and salinity are key factors influencing crop yield and net economic benefit in coastal saline-alkali soils. Integrated analysis and optimization of the benefits of wheat-corn cropping under different nitrogen applications in saline soils could provide lay the scientific basis for sustainable development of agriculture in coastal farmlands. A total of 571 pair-reviewed literature data on two-factor cross-over trials, involving soil salinity and nitrogen application, were integratively analyzed. Based on multi-objective optimization of crop yield, agronomic and net economic benefits, and soil nitrate residue in coastal saline-alkali soils, area-specific nitrogen application strategies were developed. The results showed that increasing the N application rate under 1.8-2.9 parts per thousand salinity can increase crop yield and economic benefits. The net economic benefit of crops was negative under 3.5 parts per thousand salinity. Above that threshold of 3.5 parts per thousand, it is not suitable for planting food crops. Consequently, it is necessary to strengthen the management of saline-alkali soils. While the application rate of 2.78 x 10(8) kg N in winter wheat/summer corn cropping ensured environmental protection, farmers preferred 3.08 x 10(8) kg of nitrogen dose. These were respectively 40.4% and 33.9% lower than the traditional dose and with relatively higher benefits too. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDA23050101] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA26050202] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2017073]
WOS关键词	SALINE-ALKALI SOIL ; USE EFFICIENCY ; NITROGEN USE ; CEREAL PRODUCTION ; WHEAT YIELD ; MAIZE ; MANAGEMENT ; NITRATE ; IRRIGATION ; WATER
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000701204400012
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/165788]
专题	中国科学院地理科学与资源研究所
通讯作者	Li, Jing
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Yellow River Delta Modern Agr Engn Lab, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resource & Environm, Beijing 100049, Peoples R China 4.UN Environm Int Ecosyst Management Partnership UN, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Xie, Hanyou,Li, Jing,Zhang, Yitao,et al. Evaluation of coastal farming under salinization and optimized fertilization strategies in China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,797:11.
APA	Xie, Hanyou,Li, Jing,Zhang, Yitao,Xu, Xiangbo,Wang, Lingqing,&Ouyang, Zhu.(2021).Evaluation of coastal farming under salinization and optimized fertilization strategies in China.SCIENCE OF THE TOTAL ENVIRONMENT,797,11.
MLA	Xie, Hanyou,et al."Evaluation of coastal farming under salinization and optimized fertilization strategies in China".SCIENCE OF THE TOTAL ENVIRONMENT 797(2021):11.