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首页> 外文期刊>Journal of Applied Ichthyology >Evaluation of the ecosystem values of aquatic wildlife reserves: a case of Chinese Sturgeon Natural Reserve in Yichang reaches of the Yangtze river
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Evaluation of the ecosystem values of aquatic wildlife reserves: a case of Chinese Sturgeon Natural Reserve in Yichang reaches of the Yangtze river

机译：水生野生动物保护区生态系统价值评价-以长江宜昌地区中华St自然保护区为例

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摘要

Chinese Sturgeon Natural Reserve (CSNR) is a typical river ecosystem in the middle of the Yangtze River. An evaluation system of the river ecosystem services of CSNR was established using the so-called 'Market Price Approach', 'Expense Payment Method', 'Contingent Valuation Method', 'Substituted Value Method', 'Cost Analysis Method' and 'Opportunity Cost Method'. The results showed that the total values of the ecosystem goods and services of the natural reserve amount to an estimated 73.57 million USD. The use-values and non use-values were 72.5 and 27.5%, respectively. The direct use values, including fisheries, water supplies and others, reach a total of about 24.23 million USD; On the other hand, the indirect use values, which include endangered species, purification costs and degradation losses, have been estimated at cost levels of approximately 29.12 million USD, indicating with 39.6% its important role of the total value. Meanwhile the non-use values of CSNR in the Yichang Reaches of the Yangtze River were assessed by a contingent valuation method (CVM) and the willingness to pay (WTP), The study shows that the annual non-use values of CSNR is up to 20.22 million USD, of which its existence values is in the range of 8.59 million USD, its bequest values 8.03 million USD, and the option values around 3.6 million USD. This preliminary analysis indicates that this natural reserve represents a special hydro-ecosystem in China with the sturgeon as target species, which is highly valued. The value of endangered aquatic species is up to 25.2% of the total, which places much emphasis on aquatic species. Investment in scientific research and management is presently quite low, amounting to only 0.7% of the total; this fact incidates that research work should be given more concern and support. Limited by the data availability, data processing capacity and time given, result of this initial investigation only represents part of CSNR's assessable value, however, considering the reality that lots of water resource and hydropower projects are now on the way, this valuation will still be helpful to inform the public with the importance of protecting endangered aquatic wildlife and such special hydro-ecosystem.
机译：中国St鱼自然保护区（CSNR）是长江中游的典型河流生态系统。利用所谓的“市场价格法”，“费用支付法”，“或有估价法”，“替代价值法”，“成本分析法”和“机会成本”，建立了CSNR的河流生态系统服务评价体系。方法'。结果表明，自然保护区的生态系统商品和服务总价值估计为7357万美元。使用价值和非使用价值分别为72.5和27.5％。包括渔业，供水等在内的直接使用价值总计约为2423万美元;另一方面，间接利用价值，包括濒危物种，净化成本和降解损失，估计成本水平约为2912万美元，表明其在总价值中的重要作用为39.6％。同时，采用或有估值法和支付意愿（WTP）对长江宜昌地区CSNR的非使用价值进行了评估，研究表明，CSNR的年度非使用价值达到2022万美元，其中生存价值为859万美元，遗赠价值为803万美元，期权价值为360万美元。初步分析表明，该自然保护区代表了以a鱼为靶标的中国特殊水生态系统，具有很高的价值。濒临灭绝的水生物种的价值高达总价值的25.2％，这非常重视水生物种。目前，科学研究和管理方面的投资很少，仅占总投资的0.7％。这一事实表明，应该给予研究工作更多的关注和支持。受数据可用性，数据处理能力和给定时间的限制，此初步调查的结果仅代表CSNR可评估的价值的一部分，但是，考虑到许多水资源和水电项目正在进行的现实，这种估值仍将是有助于使公众了解保护濒临灭绝的水生野生生物和这种特殊的水生态系统的重要性。

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