基于鱼类生境需求的生态流量过程研究

发布时间：2018-03-13 17:40

  本文选题：生境特征　切入点：生态需水　出处：《水力发电》2016年04期 　论文类型：期刊论文

【摘要】：选用日涨水率和日落水率两个生态水文因子,构建裂腹鱼栖息地生态水文学特征指标。结果表明,产卵期日涨水率的适宜范围为0.005~0.015,日落水率的适宜范围为0.005~0.015;非产卵期(5~10月)日涨水率的适宜范围为0.01~0.05,日落水率的适宜范围为0.02~0.04。采用文献法和专家法得出裂腹鱼产卵期偏好水深范围为0.5~1.5 m、偏好流速范围为0.5~2.0 m/s。用不同方法计算了苏洼龙水电站坝下河段生态需水量,并结合金沙江上游天然河流的水文情势及裂腹鱼栖息地生态水文学特征,以生态水力学法的计算结果作为基流量,确定了苏洼龙水电站坝下河段的生态流量过程。
[Abstract]:Two ecological hydrological factors, daily water rise rate and sunwater fall rate, were used to construct ecological hydrological characteristics of the habitat of the fissure fish, and the results showed that, The optimum range of daily water rate in oviposition period is 0.005 ~ 0.015, that of sunset water rate is 0.005 ~ 0.015; that of non-oviposition period is from 5 to October) the optimum range is 0.01 ~ 0.05, and the suitable range of sunset water rate is 0.02 ~ 0.04. The preferred water depth is 0.5 ~ 1.5 m and the preferred velocity range is 0.5 ~ 2.0 m / s. Different methods are used to calculate the ecological water demand under the dam of Suwulong Hydropower Station. Based on the hydrological situation of the natural rivers in the upper reaches of Jinsha River and the ecological hydrological characteristics of the fissure habitat, the ecological discharge process of the lower reaches of the dam of Suwulong Hydropower Station is determined by using the results of the ecological hydraulics method as the basic discharge.
【作者单位】： 中国电建集团北京勘测设计研究院有限公司;中电投新疆能源化工集团南疆分公司;
【分类号】：TV213.4
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本文编号：1607432