文章基本信息

标题：Evaluating improvements in irrigation efficiency as a salinity mitigation option in the South Australian Riverland
本地全文：下载
作者：Heaney, Anna ; Beare, Stephen ; Bell, Rosalyn 等
期刊名称：Journal of Food Distribution Research
印刷版ISSN：0047-245X
出版年度：2001
期号：SUPPL
出版社：Food Distribution Research Society
摘要：A modelling framework incorporating relationships between agricultural production and groundwater hydrology was developed to estimate the benefits of improved irrigation efficiency in the Riverland of South Australia. Increased irrigation efficiency can generate external benefits to downstream users through reduced discharge of saline groundwater. In the Riverland these benefits are large in comparison to the direct value of the irrigation water. However, the non‐exclusive and site‐specific nature of these benefits makes it difficult to fully internalise them through market instruments such as salinity credits. Achieving optimal irrigation efficiency is likely to require institutional arrangements that promote collective investment and public expenditure.