气候变化领域集成服务门户(CCPortal): A scale-based framework to understand the promises, pitfalls and paradoxes of irrigation efficiency to meet major water challenges

CCPortal

DOI	10.1016/j.gloenvcha.2020.102182
	A scale-based framework to understand the promises, pitfalls and paradoxes of irrigation efficiency to meet major water challenges
	Lankford B.; Closas A.; Dalton J.; López Gunn E.; Hess T.; Knox J.W.; van der Kooij S.; Lautze J.; Molden D.; Orr S.; Pittock J.; Richter B.; Riddell P.J.; Scott C.A.; Venot J.-P.; Vos J.; Zwarteveen M.
发表日期	2020
ISSN	9593780
卷号	65
英文摘要	An effective placement of irrigation efficiency in water management will contribute towards meeting the pre-eminent global water challenges of our time such as addressing water scarcity, boosting crop water productivity and reconciling competing water needs between sectors. However, although irrigation efficiency may appear to be a simple measure of performance and imply dramatic positive benefits, it is not straightforward to understand, measure or apply. For example, hydrological understanding that irrigation losses recycle back to surface and groundwater in river basins attempts to account for scale, but this generalisation cannot be readily translated from one location to another or be considered neutral for farmers sharing local irrigation networks. Because irrigation efficiency (IE) motives, measures, effects and technologies play out at different scales for different people, organisations and purposes, and losses differ from place to place and over time, IE is a contested term, highly changeable and subjective. This makes generalisations for science, management and policy difficult. Accordingly, we propose new definitions for IE and irrigation hydrology and introduce a framework, termed an ‘irrigation efficiency matrix’, comprising five spatial scales and ten dimensions to understand and critique the promises, pitfalls and paradoxes of IE and to unlock its utility for addressing contemporary water challenges. © 2020 The Author(s)
关键词	Irrigation Irrigation efficiency River basins Scale SDGs Water allocation
英文关键词	conceptual framework; groundwater resource; irrigation system; water management; water planning; water stress; water use efficiency
语种	英语
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205462
作者单位	University of East Anglia, United Kingdom; International Consultant, Australia; International Union for Conservation of Nature, Switzerland; ICATALIST, Spain; Cranfield University, United Kingdom; Wageningen University, Netherlands; International Water Management Institute, South Africa; International Centre for Integrated Mountain Development, Nepal; WWF International, Switzerland; The Australian National University, Australia; Sustainable Waters, United States; Independent Researcher, France; University of Arizona, United States; French Research Institute for Sustainable Development (IRD) and University of Montpellier, France; Wageningen University, Netherlands; IHE Delft Institute for Water Education and University of Amsterdam, Netherlands
推荐引用方式 GB/T 7714	Lankford B.,Closas A.,Dalton J.,et al. A scale-based framework to understand the promises, pitfalls and paradoxes of irrigation efficiency to meet major water challenges[J],2020,65.
APA	Lankford B..,Closas A..,Dalton J..,López Gunn E..,Hess T..,...&Zwarteveen M..(2020).A scale-based framework to understand the promises, pitfalls and paradoxes of irrigation efficiency to meet major water challenges.Global Environmental Change,65.
MLA	Lankford B.,et al."A scale-based framework to understand the promises, pitfalls and paradoxes of irrigation efficiency to meet major water challenges".Global Environmental Change 65(2020).