文章基本信息
- 标题：Valuing groundwater recharge through agricultural production in the Hadejia-Nguru wetlands in northern Nigeria
- 本地全文：下载
- 作者：Acharya, Gayatri ; Barbier, Edward B.
- 期刊名称：Journal of Food Distribution Research
- 印刷版ISSN：0047-245X
- 出版年度：2000
- 出版社：Food Distribution Research Society
- 摘要：This study applies a production function approach to value the groundwater recharge function of the Hadejia-Nguru wetlands in 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. © 2000 Elsevier Science B.V. All rights reserved.
- 关键词：Production function approach;Valuation;Wetlands;Groundwater recharge;Ecosystem function
