Valuing Groundwater Recharge Through Agricultural Production in the Hadejia-Nguru Wetlands in Northern Nigeria

Posted: 23 Sep 2002

See all articles by Gayatri Acharya

Gayatri Acharya

World Bank

Edward B. Barbier

Colorado State University, Fort Collins - Department of Economics

Abstract

This study applies a production function approach to value the groundwater recharge function of the Hadejia-Nguru wetlands of northern Nigeria. The groundwater recharge function supports dry season agricultural production which is dependent on groundwater abstraction for irrigation. Using survey data this paper first carries out an economic valuation of agricultural production per hectare of irrigated land. We then value the recharge function as an environmental input into the dry season agricultural production and derive appropriate welfare change measures. Welfare change is calculated using the estimated production functions and hypothetical changes in groundwater recharge and hence, groundwater levels. By focusing on agricultural production dependent solely on groundwater resources from the shallow aquifer, this study establishes that the groundwater recharge function of the wetlands is of significant importance for the floodplain.

JEL Classification: Q10, Q25

Suggested Citation

Acharya, Gayatri and Barbier, Edward B., Valuing Groundwater Recharge Through Agricultural Production in the Hadejia-Nguru Wetlands in Northern Nigeria. Agricultural Economics, Vol. 22, pp. 247-259, 2000. Available at SSRN: https://ssrn.com/abstract=326280

Gayatri Acharya

World Bank ( email )

1818 H Street, N.W.
Washington, DC 20433
United States
202 458-9545 (Phone)
202 676-0977 (Fax)

Edward B. Barbier (Contact Author)

Colorado State University, Fort Collins - Department of Economics ( email )

Fort Collins, CO 80523-1771
United States

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