气候变化领域集成服务门户(CCPortal): Quantifying irrigation adaptation strategies in response to stakeholder-driven groundwater management in the US High Plains Aquifer

CCPortal

DOI	10.1088/1748-9326/aafe39
	Quantifying irrigation adaptation strategies in response to stakeholder-driven groundwater management in the US High Plains Aquifer
	Deines J.M.; Kendall A.D.; Butler J.J.; Hyndman D.W.
发表日期	2019
ISSN	17489318
卷号	14 期号:4
英文摘要	Irrigation enhances agricultural yields and stabilizes farmer incomes, but overexploitation has depleted groundwater resources around the globe. Strategies to address this sustainability challenge differ widely. Socio-ecological systems research suggests that management of common pool resources like groundwater would benefit from localized approaches that combine self-organization along with active monitoring. In 2012, the US state of Kansas established a Local Enhanced Management Area (LEMA) program, empowering farmers to work with local and state officials to develop five-year, enforceable groundwater conservation programs. Here, we assessed the efficacy of the first LEMA implemented from 2013 to 2017 using a causal impact methodology based on Bayesian structural time series that is new to agrohydrology. Compared to control scenarios, we found that the LEMA reduced water use by 31% over the five-year period, with early indications of stabilizing groundwater levels. Three main conservation strategies can lead to reduced water use: (1) reducing irrigated area, (2) reducing irrigation amount applied to existing crops through improved efficiency, and/or (3) switching to crops that require less water. To partition water savings among these strategies, we combined satellite-derived irrigated areas and crop type maps with well records. We found that farmers were able to largely maintain irrigated area and achieved the majority of pumping reductions (72%) from improvements in irrigation efficiency, followed by expansion of crops with lower water demand (19%). The results of this analysis demonstrate that conservation programs that are irrigator-driven with regulatory oversight can provide a path toward sustainability in stressed aquifers. © 2019 2018 The Author(s). Published by IOP Publishing Ltd.
英文关键词	agriculture; farmer adaptation; groundwater sustainability; High Plains Aquifer; irrigation; Ogallala Aquifer; water management
语种	英语
scopus关键词	Agriculture; Aquifers; Crops; Efficiency; Hydrogeology; Irrigation; Sustainable development; Water management; Adaptation strategies; Common pool resources; Conservation strategies; farmer adaptation; Groundwater conservation; Groundwater management; Ogallala aquifers; Socio-ecological systems; Groundwater resources; adaptive management; aquifer; crop improvement; crop plant; groundwater resource; irrigation system; sustainability; water demand; water management; water use; Kansas; Ogallala Aquifer; United States
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154644
作者单位	Department of Earth and Environmental Sciences, Michigan State University, East Lansing, United States; Center for Systems Integration and Sustainability, Michigan State University, East Lansing, United States; Kansas Geological Survey, University of Kansas, Lawrence, KS 66047, United States; Department of Earth Systems Science, Stanford University, 473 Via Ortega Dr, Stanford, CA 94305, United States
推荐引用方式 GB/T 7714	Deines J.M.,Kendall A.D.,Butler J.J.,et al. Quantifying irrigation adaptation strategies in response to stakeholder-driven groundwater management in the US High Plains Aquifer[J],2019,14(4).
APA	Deines J.M.,Kendall A.D.,Butler J.J.,&Hyndman D.W..(2019).Quantifying irrigation adaptation strategies in response to stakeholder-driven groundwater management in the US High Plains Aquifer.Environmental Research Letters,14(4).
MLA	Deines J.M.,et al."Quantifying irrigation adaptation strategies in response to stakeholder-driven groundwater management in the US High Plains Aquifer".Environmental Research Letters 14.4(2019).