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【我的研究】东海区资源保护型人工鱼礁经济效果评价
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摘要：人工鱼礁是放置于海底以影响海洋生物资源的物理、生物或社会经济过程的人工设施,具有修复生态环境、保护渔业资源的功能。21世纪以来我国东海区开展了较大规模人工鱼礁建设,用以改善渔业资源严重衰退的局面。科学地评价人工鱼礁建设的经济效果,对指导今后建设具有重要现实意义。本文根据东海区建设规模超过5×104空m3、建成时间大于2年、礁体结构为具有代表性的钢筋混凝土和旧船改造、并且有跟踪调查记录的4个有代表性的资源保护型人工鱼礁项目的调查资料,选取净现值(NPV)、动态投资回收期(DPP)、内部收益率(IRR)和益本比(BCR)等作为评价指标,运用模糊数学法建立了相应的模糊隶属函数,运用熵权法确定了评价指标权重,计算了经济效果评价值。结果表明,评价结果与实际调研结果吻合,评价方法可以作为东海区相近海况的同类型鱼礁经济效果评价的参考依据。
Abstract：An artificial reef is one or more objects of natural or human origin deployed purposefully on the seafloor to influence physical, biological, or socioeconomic processes related to living marine resources, which is applied to improving marine entironment and protecting fishery resources. Large numbers of artificial reef projects have been developing in the East China Sea from the beginning of 21st century, so as to restore and enhance fishery resources. It is realistically very important to the future construction of the artificial reefs that the economic impact of the artificial reef can be scientifically evaluated. On the basis of socioeconomic investigative data of 4 artificial reef projects in the East China Sea which had been deployed purposefully for fishery resources conservation. whose condition are as follows: (1)the dimensions are over 5×104 Void m3; (2)finishing time is over 2 years; (3)the type of the materials are ferroconcrete and discarded boat; and (4)which have followed investigated data. Refered to other projects, based on the attributes of artificial reefs, four dynamic evaluated indexes are selected, namely, Net Present Value (abbr. NPV), Dynamic Payback Period(abbr. DPP), Inner Rate of Return (abbr. IRR) and Benefit-Cost Ratio(abbr. BCR). The fuzzy membership functions of the evaluated indexes on the artificial reef are evaluated. The weight of the evaluated indexes is evaluated by using entropy method in succession. Finally synthetical evaluation values of economic impact on the artificial reef are calculated. The result indicates that the calculated outcome of the evaluated methods is good in agreement with the fact of socioeconomic investigative of these artificial reefs, which can be applied to economic impact evaluation of the similar kind of the artificial reef.
发表于《资源科学》2009年第12期
https://m.sciencenet.cn/blog-267955-522243.html
上一篇：【最近研究】资源保护型人工鱼礁生态效果评价体系的初步研究
下一篇：【我的研究】浙江嵊泗人工鱼礁区渔业资源生态容纳量变动的研究
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