水利学报2012，Vol.43Issue(7)：860-868,9.
基于遗传规划法识别影响鱼类丰度的关键环境因子
Identification of significant environmental factors affecting fish abundance by genetic programming
摘要
Abstract
Environmental factors affecting larval abundance of the four major Chinese carps in the middle and upper reaches of the Yangtze River can be classified into four categories： meteorology, hydrology, water temperature, and sediment concentration. Out of total 15 environmental factors, the authors, by us- ing genetic programming, identified the two most significant factors： the duration （Tdvr） and the average daily rate （Qrtav） of flow increase. With a non-linear correlation, the larval abundance increases signifi- cantly with Trbar when Tdur is within 5 to 8 days. With an approximately linear correlation, the larval abun- dance increases with Qrtav when Qrtav〈2 000 （m3/s）/d. Field data are not sufficient to support any conclusion when Qrtav〉2 000 （m3/s）/d. Compared to other quantitative correlation analyses such as multiple linear regres- sion and artificial neutral network, genetic programming has advantages in dealing with a large number of nonlinear factors especially when their affecting mechanisms are not clear.关键词
遗传规划法/鱼类丰度/关键环境因子/四大家鱼/涨水的持续时间/涨水的日均涨水率Key words
genetic programming/fish abundance/significant environmental factors/the four major Chi- nese carps/duration of flow increase/average daily rate of flow increase分类
资源环境引用本文复制引用
王俊娜,李翀,段辛斌,廖文根..基于遗传规划法识别影响鱼类丰度的关键环境因子[J].水利学报,2012,43(7):860-868,9.基金项目
基金项目：国家科技支撑计划课题 （）
中国水科院博士生学位论文创新研究资助课题 （）
