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Economic valuation of a multiple use wetland water system: a case study from India

机译：多用途湿地水系统的经济评估：来自印度的案例研究

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摘要

In the Gangetic floodplain of West Bengal, multiple use wetlands (MUW) play a significant role in the livelihoods of the local people. Over the years, these multiple use systems are being converted into single use systems for commercial gain by economically, socially and politically dominant groups. Compared to single use water systems, MUW benefit a larger number of people belonging to different socio-economic strata. Also, the economic and ecological functions of MUW change over time and space. These dynamic aspects of wetlands are often not fully recognised. Attempts to classify wetlands according to their uses across ecological zones and to carry out their economic valuation are limited. A wetland was selected in the Barddhaman district of West Bengal to evaluate the economic benefits of various direct uses. The study shows that the major economic benefits that people living in the surrounding area of the wetland derive are from wetland cultivation, direct irrigation, jute retting and fisheries. The largest benefit was from jute retting followed by fisheries and wetland cultivation. The irrigation benefits were found to be low owing to the greater distance of the farm land from the wetland, and easy access to groundwater owing to the shallow aquifers in the region.
机译：在西孟加拉邦的恒河平原上，多用途湿地（MUW）在当地人的生计中起着重要作用。多年来，这些多用途系统已被经济，社会和政治上占主导地位的群体转变为单一用途系统，以获取商业利益。与一次性用水系统相比，MUW使来自不同社会经济阶层的更多人受益。而且，城市生活垃圾的经济和生态功能随着时间和空间而变化。湿地的这些动态方面通常没有得到充分认识。根据湿地在整个生态区的用途对湿地进行分类并进行经济评估的尝试是有限的。在西孟加拉邦的Barddhaman地区选择了一个湿地，以评估各种直接用途的经济效益。研究表明，生活在湿地周边地区的人们的主要经济利益来自于湿地种植，直接灌溉，黄麻休养和渔业。最大的收益来自黄麻种植，随后是渔业和湿地种植。由于农田距湿地的距离较远，以及该地区的浅层含水层易于获取地下水，因此发现灌溉效益低。

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