基于FDC生态指标的水文情势评价  

Hydrological Situation Evaluation Based on FDC Ecological Indicators

作　　者：赵洪彬[1] 黄晓荣[1,2] 周星宇[1] 马凯[1] ZHAO Hong-bin;HUANG Xiao-rong;ZHOU Xing-yu;MA Kai(College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China;State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China)

机构地区：[1]四川大学水利水电学院,成都610065 [2]四川大学水力学与山区河流开发保护国家重点实验室,成都610065

出　　处：《中国农村水利水电》2020年第9期100-104,111,共6页China Rural Water and Hydropower

基　　金：国家自然科学基金项目(51579161)。

摘　　要：收集了攀枝花站1966-2017年日径流资料以及攀枝花站上游9个雨量站对应年限的日雨量资料,采用泰森多边形法进行面雨量计算,采用Mann-Kendall突变点检验法对径流变化特征进行计算,并对径流过程进行趋势分析,同时采用基于FDC的生态剩余、生态赤字的生态指标法分别从年、季尺度上对该地区的水文情势进行评价。结果表明:1966-2017年,径流和降水呈现出“低高低”的变化趋势;该站降水与生态指标具有较好的相关关系,表明该地区流量变化主要是由降水变化引起的;在季尺度上,夏季的生态变化情况与整年变化规律更为一致;在电站影响时期,不同尺度下生态指标的变化规律基本一致,表明攀枝花上游梯级电站对该站的水文情势影响甚微。The daily runoff data of Panzhihua Station from 1966 to 2017 and the corresponding rainfall data of the nine rainfall stations in the upper reaches of Panzhihua Station are collected.The surface rainfall is calculated by the Thiessen polygon method,and the runoff variation characteristics are analyzed by Mann-Kendall mutation point test.The calculation and trend analysis of the runoff process are carried out.At the same time,the ecological indicators of ecological surplus and ecological deficit based on FDC are used to evaluate the hydrological situation of the area from the annual and seasonal scales.The results show that between 1966 and 2017,the runoff and precipitation showed a trend of“low to high to low”.The precipitation and ecological indicators of this station have a good correlation,and it shows that the change of the area's flow is mainly caused by the change of precipitation.In summer,the ecological changes in summer are more consistent with the changes in the whole year.In the period of power plant impact,the changes of ecological indicators at different scales are basically the same,indicating that the cascade hydropower station in the upper reaches of Panzhihua has little influence on the hydrological situation of the station.

关 键 词：FDC 生态剩余 生态赤字 生态指标 水文情势 

分 类 号：TV121[水利工程—水文学及水资源]