干旱区生态环境知识资源中心(Arid): Balancing the benefits from the water-energy-land-food nexus through agroforestry in the Sahel

Arid

DOI	10.1016/j.scitotenv.2020.140509
	Balancing the benefits from the water-energy-land-food nexus through agroforestry in the Sahel
	Elagib, Nadir Ahmed; Al-Saidi, Mohammad
通讯作者	Elagib, NA
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2020
卷号	742
英文摘要	Regions affected by resource scarcity, poverty, and land-use conflicts need to advocate the merits of practices strongly grounded in sustainable land management. This review paper provides an analysis of agroforestry as an integrated system embedded in complex relations between resource uses in the Water-Energy-land-Food (WELF) nexus. Using the African Sahel region as a case study, the paper explains the need for understanding land management practices, such as agroforestry, through the lens of trade-offs and benefits inherent in the WELF nexus. Agroforestry practices are demonstrated to be valuable interventions leading to i) resilience to climate stresses, ii) water, energy, and food securities, iii) mitigation of resource-oriented harbingers of conflicts and iv) development opportunities. These goals can also yield valuable results in terms of promoting sustainable development, i.e. functional ecosystems, livelihoods, and human security. Two overarching sub-nexuses, namely agroforestry-food-energy and agroforestry-food-water-climate, are identified in the Sahelian context and conceptualized. Primarily, the trade-offs outlined within these sub-nexuses are fuelwood vs. crops, use of land for more forests vs. more cropping, and water availability for agroforestry vs. agroforestry impacts on the water cycle. Despite the positive outcomes and opportunities, agroforestry systems in the Sahel still face some challenges such as vague land use rights, inadequate capacities and lack of investments. Policy recommendations are synthesized at three levels. This synthesis involves remedies to lessen pressures at the interlinks of WELF resource use, overarching remedies in the two sub-nexuses, and remedies across all the sectors and issues for improving agroforestry outcomes. Optimal remedies stress the importance of choosing the right land, water and plant combinations as well as incorporating efficiency measures and alternative sources. A successful agroforestry system is characterized by a conducive environment at the farm level in terms of institutions, management, enhancing the farmer's capacity, and good infrastructure. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Water-Energy-Food nexus Agroforestry Sustainable development Climate-smart agriculture Land-use conflict Sahel
类型	Review
语种	英语
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000569415100003
WOS关键词	CLIMATE-CHANGE ; SUSTAINABLE DEVELOPMENT ; ECOSYSTEM SERVICES ; SEMIARID ZONE ; DROUGHT RISK ; TREE COVER ; CROP YIELD ; DEFORESTATION ; DESERTIFICATION ; PERSPECTIVE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326303
作者单位	[Elagib, Nadir Ahmed] Bockingstr 55, D-51063 Cologne, Germany; [Al-Saidi, Mohammad] Qatar Univ, Coll Arts & Sci, Ctr Sustainable Dev, Doha, Qatar
推荐引用方式 GB/T 7714	Elagib, Nadir Ahmed,Al-Saidi, Mohammad. Balancing the benefits from the water-energy-land-food nexus through agroforestry in the Sahel[J],2020,742.
APA	Elagib, Nadir Ahmed,&Al-Saidi, Mohammad.(2020).Balancing the benefits from the water-energy-land-food nexus through agroforestry in the Sahel.SCIENCE OF THE TOTAL ENVIRONMENT,742.
MLA	Elagib, Nadir Ahmed,et al."Balancing the benefits from the water-energy-land-food nexus through agroforestry in the Sahel".SCIENCE OF THE TOTAL ENVIRONMENT 742(2020).