Mapping the financial benefits of sprinkler irrigation and potential financial impact of restrictions on abstraction: A case-study in Anglian Region
Mapping the financial benefits of sprinkler irrigation and potential financial impact of restrictions on abstraction: A case-study in Anglian Region
复制标题
绘制喷灌的经济效益和取水限制的潜在财务影响：安格利亚地区的案例研究
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
A. Turner
中科院分区：
文献类型：
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作者：
J. Knox;J. Morris;A. Turner
摘要：本文描述了一种基于地理信息系统（GIS）的方法的发展，用于估计和绘制灌溉的潜在经济效益以及限制喷灌抽水量的潜在财务影响。提出了环境局将在其中使用该方法的框架。英格兰和威尔士的所有取水都是由环境署许可和控制的。《水资源法》（1991年）允许环境署为避免或减少对环境的不利影响，对喷灌的抽水量施加限制。对灌溉实施全部或部分限制会对农业生产和农业收入产生重大的财政后果。《环境法》（1995年）规定环境署有责任考虑其行动可能带来的成本和收益。然而，灌溉用水的价值在空间上是不同的。地理信息系统技术使这种变异性得以分析。该分析应用于环境局盎格鲁地区。研究结果证实，灌溉的好处是显著的，而限制抽取的财政影响可能非常高。地图显示了灌溉的潜在效益（每面积和每单位水量）和不同时期限制的成本。讨论了农民可以采取的应对策略，以减轻影响。尽管有一些限制，但这种方法似乎效果很好，特别是在密集灌溉地区。
Abstract This paper describes the development of a Geographic Information Systems (GIS)-based methodology to estimate and map the potential financial benefits of irrigation and the potential financial impacts of restrictions on abstraction for sprinkler irrigation. The framework within which the Environment Agency will use the methodology is presented. All water abstractions in England and Wales are licensed and controlled by the Environment Agency. The Water Resources Act (1991) allows the Environment Agency to impose restrictions on abstraction for sprinkler irrigation in order to avoid or reduce adverse environmental impact. Imposing total or partial restrictions on irrigation can have significant financial consequences for farm production and farm incomes. The Environment Act (1995) placed a duty on the Environment Agency to take account of the likely costs and benefits that may follow from its actions. However, the value of water for irrigation varies spatially. GIS techniques enable this variability to be analysed. The analysis is applied to the Environment Agency Anglian Region. The results confirm that the benefits of irrigation are significant, and that financial impacts of restrictions on abstraction can be very high. Maps are presented showing the potential benefits of irrigation (per area and per unit volume of water) and the costs of restrictions at various times. Coping strategies, which farmers can adopt to mitigate the impacts, are discussed. Despite a number of limitations, the methodology appears to work well, particularly in intensively irrigated areas.