干旱区生态环境知识资源中心(Arid): The nexus of water, ecosystems and agriculture in arid areas: A multiobjective optimization study on system efficiencies

Arid

DOI	10.1016/j.agwat.2019.105697
	The nexus of water, ecosystems and agriculture in arid areas: A multiobjective optimization study on system efficiencies
	Niu, Geng; Zheng, Yi; Han, Feng; Qin, Huapeng
通讯作者	Zheng, Y (corresponding author), Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2019
卷号	223
英文摘要	In arid areas, agricultural development can occur at the expense of ecosystem conservation and water quality. To balance the conflicting interests, the water-ecosystem-agriculture (WEA) nexus in such areas needs to be systematically addressed. In this study, a multi objective linear fractional programming (MOLFP) approach is proposed to model the synergies and tradeoffs in the WEA nexus. Using this approach, the impacts of changes in hydrological conditions, land use, and the water management regime on the economic, ecological, and environmental efficiencies of the agricultural system in Zhangye Basin (ZB) (a typical arid area in northwestern China) were assessed. The major study findings are as follows: First, the MOLFP approach can effectively identify solutions for optimization problems with multiple interrelated ratio-type objectives, and the optimization results intrinsically reflect the behavior of the socioeconomic system. Second, in wet conditions, the agricultural system can be more profitable and environmentally friendly but less efficient in saving water for the ecosystems in the downstream area. Third, the potential land-use conversion from croplands into fallow or built-up areas, as well as the new water quality regulation, may lead to co benefits of economic, ecological and environmental efficiencies. Finally, the flexibility to adjust the spatial pattern of crop planting makes the agricultural system in ZB exhibit good resilience to water, land, and food stresses. However, the resilience is seriously impaired under very dry conditions and dramatic land-use changes. Overall, this study lays out a new framework for addressing the complex WEA nexus through system modeling and provides insights into agriculture planning and water resources management in arid areas.
英文关键词	Water-ecosystem-agriculture nexus Food security Ecological flow Nonpoint source pollution Multiobjective optimization Fractional programming
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000495460400025
WOS关键词	HEIHE RIVER-BASIN ; SURFACE-WATER ; PROGRAMMING APPROACH ; DECISION-MAKING ; ENERGY ; GROUNDWATER ; IRRIGATION ; FOOD ; RESOURCES ; MANAGEMENT
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369844
作者单位	[Niu, Geng; Qin, Huapeng] Peking Univ, Sch Environm & Energy, Key Lab Urban Habitat Environm Sci & Technol, Shenzhen Grad Sch, Shenzhen 518055, Guangdong, Peoples R China; [Niu, Geng; Zheng, Yi; Han, Feng] Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China; [Zheng, Yi; Han, Feng] Southern Univ Sci & Technol, Shenzhen Municipal Engn Lab Environm IoT Technol, Shenzhen 518055, Guangdong, Peoples R China; [Zheng, Yi; Han, Feng] Southern Univ Sci & Technol, Guangdong Prov Key Lab Soil & Groundwater Pollut, Shenzhen 518055, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Niu, Geng,Zheng, Yi,Han, Feng,et al. The nexus of water, ecosystems and agriculture in arid areas: A multiobjective optimization study on system efficiencies[J]. 北京大学,2019,223.
APA	Niu, Geng,Zheng, Yi,Han, Feng,&Qin, Huapeng.(2019).The nexus of water, ecosystems and agriculture in arid areas: A multiobjective optimization study on system efficiencies.AGRICULTURAL WATER MANAGEMENT,223.
MLA	Niu, Geng,et al."The nexus of water, ecosystems and agriculture in arid areas: A multiobjective optimization study on system efficiencies".AGRICULTURAL WATER MANAGEMENT 223(2019).