[关键词]
[摘要]
在工程建设中通常会面对多方案的选择, 平衡各方面的利益取得最佳方案是工程建设的重要工作。模糊优选 方法是一种具有严密数学逻辑和哲学思维的方法, 能够用来对工程建设中的多方案进行优选。结合雅砻江流域内 的调水工程, 考虑调水的生态环境影响, 选择多指标表征生态环境, 设置多种调水方案, 利用模糊优选方法对雅砻江 调水方案进行优化选择。结果表明: 在调水规模一致和调水过程不同的前提下, 调水过程的变化对降低调水不利的 影响很大; 在调水过程一致和调水规模不同的前提下, 调水规模的降低对生态环境的保护起积极作用; 在现有的基 础上考虑生态环境的影响, 应该适当降低调水规模并尽可能在汛期调水。
[Key word]
[Abstract]
Scheme selectio n is common in eng ineer ing co nstr uctio n, , and the best scheme can balance the benefits f rom differ ent aspects. Fuzzy optimization metho d is w idely used in scheme selection o f engineer ing pr ojects due to its strict log ic o f mathemat2 ical and philo sophical thinking. In t his paper, fuzzy optimization metho d w as used to select the best scheme for t he w ater trans2 fer in the Yalong Riv er in consideratio n of the eco2environment al impacts. The r esult s showed ( 1) under the same w ater tr ansfer scale and different water transfer pro cess, v ariation of w ater t ransfer pr ocess can incr ease the adver se effects of water transfer; ( 2) under t he same wat er t ransfer pro cess and differ ent water t ransfer scale, reduction of w ater transfer scale can benefit the ec2 o lo gical env ir onment; and ( 3) w ater transfer is better co nducted during the flood season and water t ransfer scale can be reduced in order to decr ease it s impacts on the eco lo gical env ir onment.
[中图分类号]
[基金项目]
/ 十一五0 国家科技支撑计划项目/ 西线工程对调水区生态环境影响评估及综合调控技术0 ( 2006BAB04A08)