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Shallow Tubewell Irrigation in Nepal: Impacts of the Community Groundwater Irrigation Sector Project (Final Report)
dc.description.abstractIrrigation for agriculture accounts for about 70% of all the world’s freshwater withdrawals and 90% of water consumption. An estimated 301 million hectares (ha) of the world’s land is irrigated, and 38% of this total is equipped for irrigation with groundwater (footnote ). The countries with the largest land areas irrigated by groundwater are India (39 million ha), People’s Republic of China (19 million ha), and United States (17 million ha). Groundwater irrigation is growing both in terms of the land area served and as a percentage of overall irrigated land. This has led to problems in places where the rate of exploitation is greater than the rate at which groundwater is being replaced. The groundwater basin is a common resource, and excluding its multiple users is difficult and costly. Groundwater has often provided a regular and timely supply of water for irrigation. Studies indicate that farms irrigated by groundwater have higher crop yields than farms irrigated by surface water.
dc.publisherAsian Development Bank
dc.rightsCC BY 3.0 IGO
dc.titleShallow Tubewell Irrigation in Nepal: Impacts of the Community Groundwater Irrigation Sector Project (Final Report)
dc.subject.expertPublic Sector
dc.subject.expertPublic Sector Projects
dc.subject.expertIrrigation Water
dc.subject.expertIrrigation Water Management
dc.subject.expertPublic Water
dc.subject.expertSurface Water
dc.subject.adbInfrastructure projects
dc.subject.adbPublic finance
dc.subject.adbIrrigation development
dc.subject.adbWater storage
dc.subject.naturalDelegation of powers
dc.subject.naturalFederal aid
dc.subject.naturalGovernment aid
dc.subject.naturalIrrigation efficiency
dc.subject.naturalIntegrated water development
dc.title.seriesImpact Evaluation Study
dc.contributor.imprintAsian Development Bank
oar.themePublic Sector
oar.adminregionSouth Asia Region
oar.authorAsian Development Bank

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    IED working papers are research-oriented and strongly analytical preliminary papers circulated for comments. These are issued to share ideas about a topic and present findings of research or work in progress.

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