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利用丹江口水库1971～1990年的有关数据,采用灰色关联分析方法分析了影响其渔获量的各因素间的主从关系。结果表明:在断续投放和渔政管理的1971～1986年,各因素对渔获量的贡献程度是:投放鱼种规格>水库面积>捕捞力量=来水量>渔政管理>鱼种投放量;在连续投入和渔政管理的1986～1990年,各因素对渔获量的贡献程度是:捕捞力量>投放规格>水库面积>投放量>渔政管理>外来水量。同时证明,该法简单易行,适用于水产业中相关性分析。
Based on the data of Danjiangkou reservoir from 1971 to 1990, the gray relational analysis method was used to analyze the relationship between the main factors affecting the catch. The results showed that in 1971-1986, the contribution of each factor to catches was: fish size> storage area> fishing power = water quantity> fishery management> feeding amount of fish species In 1986 ~ 1990, the contribution of each factor to catches was: fishing force> delivery specification> reservoir area> input amount> fishery management> external water amount. At the same time, it is proved that this method is simple and easy to be applied to the correlation analysis in aquaculture.