水产养殖综合效益评价指标体系研究

Aquaculture total benefits evaluation indexes system

本研究采用层次分析法和德尔菲法,在经济效益、社会效益和生态效益三个方面筛选了18个指标,建立了水产养殖综合效益评价指标体系。通过构造两两比较判断矩阵,计算最大特征根和特征向量,得到各指标的重要性排序。结果显示:对于水产养殖综合效益来说,准则层中各因素重要程度的排序为:经济效益>生态效益>社会效益;对于经济效益来说,其隶属指标的排序为:劳均渔产值>投入产出比>利润>产值>面积>投入;对于生态效益来说,其隶属指标的排序为:养殖密度>水层利用率>渔药使用强度>养殖水达标排放>内部环境>外部环境;对于社会效益来说,其隶属指标的排序为:产品合格率>渔民增收>就业效果>劳均用量>万元产值耗能>蛋白贡献率。

This study screened 18 indicators in the following three aspects： economic benefit, social benefit and ecological benefit, and established the evaluation index system of the comprehensive benefits of aquaculture industry. By constructing pairwise comparison matrix and calculating the biggest characteristic root and characteristic vector to find the order of the importance of these indicators. The results showed that the economic benefit was the most important and the social benefit was the least important for the comprehensive benefits of aquaculture industry. For economic benefit, the order of its related indicators was the per capita production value, the input-output ratio, return, productive value, the culture area, and the last is input. For ecological benefit, the order of its related indicators was breeding density, the utilization of water layer, the use indensity of fishery medicine, the emission of water, internal environment and external environment. For social benefit, the order of its related indicators was the qualified rate of production, the fisherman increased income, the effect of employment, the number of workers per mu, the energy dissipation per ten thousand output and the protein contribution rate.