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曹娥江适宜生态流量计算和评价研究

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保障河流生态流量对维持河流生态健康状态具有重要意义.通过对曹娥江流域东沙埠和黄泥桥两个控制断面1961-2017年还原径流量资料进行可靠性、代表性和一致性检验,表明还原径流量可视为天然径流量.选取Tennant法、Qp法、频率曲线法、年内展布法、月流量变动法共5种水文学方法分别计算两个控制断面各月适宜生态流量.以准确率、满足率和适宜度为指标综合评价了不同方法在曹娥江流域研究区的适用性,最终推荐月流量变动法作为适宜生态流量的计算方法,最小值分别为14.83 m3/s和2.44 m3/s,最大值分别为46.61 m3/s和6.74 m3/s.该研究为流域水库生态调度提供参考.
Calculation and Evaluation of Suitable Ecological Flow in Cao'e River
Ensuring the ecological flow of rivers is of great significance to maintaining the ecological health of rivers.Through the reliability,representativeness and consistency test of runoff restoration data of the two control sections of Dongshabu and Huangniq-iao in the Cao'e River Basin from 1961 to 2017,the results show that the restored runoff can be regarded as natural runoff.Five hydrological methods,including Tennant method,Qp method,frequency curve method,intra-year spread method and monthly flow change method,were selected to calculate the suitable ecological flow rates for each month of the two control sections.The appli-cability of different methods in the Cao'e River Basin was comprehensively evaluated using accuracy,satisfaction rate and suitabil-ity as the indicators,and finally the monthly flow change method was recommended as the calculation method of suitable ecologi-cal flow,with the minimum values of 14.83 m3/s and 2.44 m3/s,and the maximum values of 46.61 m3/s and 6.74 m3/s,respectively.This study could provide references for the ecological operation of reservoirs in the basin.

Cao'e Riversuitable ecological flowhydrological methodmonthly flow change methodcomprehensive indexevalua-tion system

皇甫欣予、陈星、田传冲、许钦

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河海大学水文水资源学院,江苏 南京 210098

浙江省水利水电勘测设计院有限责任公司,浙江杭州 310002

水灾害防御全国重点实验室,江苏南京 210098

长江保护与绿色发展研究院,江苏南京 210098

南京水利科学研究院,江苏 南京 210029

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曹娥江 适宜生态流量 水文学法 月流量变动法 综合指数 评价体系

国家自然科学基金中央级公益性科研院所基本科研业务费专项中央级公益性科研院所基本科研业务费专项中央级公益性科研院所基本科研业务费专项浙江省水利厅科技计划项目山东省重点研发计划项目

52209031Y522001Y522018Y520009RA20082023CXGC010905

2024

10.19797/j.cnki.1000-0852.20230217

水文
水利部水文局 水利部水利信息中心

水文

CSTPCD北大核心
影响因子：0.742
ISSN：1000-0852
年,卷(期)：2024.44(3)
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