萨赫勒灌溉战略（英）

Sahel Irrigation StrategyApril 2025Public Disclosure AuthorizedPublic Disclosure AuthorizedPublic Disclosure AuthorizedPublic Disclosure AuthorizedCover: Irrigation on a young maize crop in Sub-Saharan Africa. Photo credit: AdeleD @ Shutterstock.comSahel Irrigation Strategy© 2025 / The World BankThis document has been developed on the basis of a participatory process involving the governments of six Sahelian countries, regional organizations such as CILSS, WAEMU and ARID, as well as contributions from the World Bank Group Staff, led by TTLs Bogachan Benli, Sara Datturi, and Amal Talbi.The findings, interpretations, and conclusions expressed in this work do not necessarily reflect the views of the World Bank, its Board of Executive Directors, the governments they represent, the Sahelian governments, and the CILSS. The World Bank, Sahelian governments, and the CILSS do not guarantee the accuracy of the data included in this work, and assume no responsibility for any errors, omissions or discrepancies in the information, nor for any liability arising from the use or misuse of the information, methods, processes or conclusion presented. Furthermore, the boundaries, colors, denominations, and other information shown on any map in this work do not imply any judgment on the part of the World Bank, Sahelian governments, and the CILSS concerning the legal status of any territory or the endorsement or acceptance of such boundaries.Nothing herein shall constitute or be construed or considered to be a limitation upon or waiver of the privileges and immunities of The World Bank, all of which are specifically reserved.Rights and PermissionsThe material in this work is subject to copyright. Because the World Bank encourages dissemination of its knowledge, this work may be reproduced, in whole or in part, for noncommercial purposes as long as full attribution to this work is given.Any queries on rights and licenses, including subsidiary rights, should be addressed to World Bank Publications, The World Bank Group, 1818 H Street NW, Washington, D.C. 20433, USA; fax: 202-522-2422; email: pubrights@worldbank.org.ContentsAbbreviations ixPreface xi1 Introduction 11.1. The Strategy in Context 11.2. Objective 21.3. Approach 41.4. Working Concepts 5Definitions 5Typologies 62 Progress and Lessons from Irrigation Development over the Past Decade 112.1. Overview of National and Regional Irrigation Initiatives since 2013 112.2. Irrigation Coverage – Status and Potential 17Irrigated Areas in the Sahel 17Surface Water Resource Potential 20Shallow Groundwater Potential 22Summary of the Water Resource Opportunity 24Increase Water Storage for Water Security and Climate Resilience 262.3. Persistent Challenges and Key Lessons 27Policy and Governance 28Productivity and Profitability 34Technology and Innovation 37Irrigation Finance, Costs, and Investments 403 Vision, Goals, and Expected Impacts 493.1. Vision 493.2. Strategic Goals and Impacts 494 Principles of Engagement 554.1. Fa