水利水电技术2017，Vol.48Issue(7)：90-94,108,6.DOI:10.13928/j.cnki.wrahe.2017.07.016
丰满水电站坝下河段生态水文特性分析
Analysis on eco-hydrological characteristics of river reach under dam of Fengman Hydropower Station
摘要
Abstract
In accordance with the characteristics of the study area and the distribution of the main spawning sites for fish,the three hydrological stations,i.e.Fengman Hydrological Station,Jilin Hydrological Station and Songhuajiang River Hydrological Station,are selected as the representatives for analyzing the eco-hydrological characteristics of the downstream river channel of Fengman Dam.The spatial and temporal variation characteristics of 32 eco-hydrological indexes in 5 categories of IHA (indicators of hydrologic alteration) within the study area are analyzed herein and the result shows that the most of the indicators have both the increase trends along river and the basically same trends of yearly increase.The water-rising indicators (effective number of water-rising processes,total effective water-rising duration,initial flowrate through the cross-section,daily increasing rate of flowrate,time interval between two successive flood peak processes) are further analyzed.The result shows that:(1) the hydrological condition of the downstream river reach with the spawning sites for fish can be improved through the joint-operation of both Fengman Reservoir and Yongqing Reservoir;(2) no large differences are there among the indicators of the initial flowrate through the cross-section and the daily increasing rate of flowrate obtained at the three hydrological stations,while the yearly variation trends of them are coincided;(3) comparing the index of the number of the effective water-rising processes and the indicator of the total effective water-rising duration,it is found out that they are obviously larger at Songhuajiang River Hydrological Station than those at the other two hydrological stations,while it is found out that the variation at Songhuajiang River Hydrological Station is more stable,if comparing the time interval between two successive flood peak processes.The study result can provide references for the study on the ecology of the river reach under dam.关键词
水文变化指标IHA/产漂流性卵鱼类/生态水文特性/丰满水电站Key words
indicators of hydrologic alteration (IHA)/fish with drifting eggs/eco-hydrological characteristics/Fengman Hydropower Station分类
建筑与水利引用本文复制引用
陈冬红,彭期冬,张迪,刘雪飞,郭晴..丰满水电站坝下河段生态水文特性分析[J].水利水电技术,2017,48(7):90-94,108,6.基金项目
国家重点计划研发项目政府间国际科技创新合作重点专项(2016YFE0102400) （2016YFE0102400）
松花江水力发电有限公司丰满大坝重建工程建设局科研项目(JSFW[2015] 198) （JSFW[2015] 198）
中国长江三峡集团公司科研项目(0799564) （0799564）
山西省水文水资源勘测局项目“基于DEM地貌单位线及下垫面特征的小流域洪水预报应用研究”(ZNJC2015-161) （ZNJC2015-161）
