乌伦古湖最低生态水位及生态缺水量

被引:21
作者
梁犁丽
王芳
汪党献
王浩
机构
[1] 中国水利水电科学研究院水资源研究所
关键词
乌伦古湖; 干旱区; 最低生态水位; 生态缺水量; 盐度;
D O I
10.14042/j.cnki.32.1309.2011.04.004
中图分类号
TV213.4 [水利资源的管理、保护与改造]; X171 [生态系统与污染生态学];
学科分类号
摘要
确定乌伦古湖的生态保护目标是流域水资源合理、高效配置的前提和基础。针对乌伦古湖冷水系淡水鱼类的生存繁殖特征,提出了基于干旱区湖泊鱼类~盐度~水量关系的湖泊最低生态水位计算方法,并根据该方法计算得到布伦托海和吉力湖的最低生态水位分别为476.12 m和478.12 m。由水量平衡关系进一步计算了湖泊最小生态需水量和接近95%、75%、50%降水频率年和多年平均降水条件下另需补充的水量,即乌伦古湖除定量调水外的缺水量分别是6.44亿m3、5.33亿m3、2.20亿m3和1.06亿m3。实际应用和相关佐证表明,该结论可信度较高。
引用
收藏
页码:470 / 478
页数:9
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