曹娥江适宜生态流量计算和评价研究
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作者单位:

1.河海大学;2.浙江省水利水电勘测设计院有限责任公司;3.1. 水灾害防御全国重点实验室;4.2. 长江保护与绿色发展研究院;5.3.南京水利科学研究院

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P333.3

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国家自然科学基金(52209031);中央级公益性科研院所基本科研业务费专项(Y522001,Y522018,Y520009);浙江省水利厅科技计划项目(RA2008);山东省重点研发计划项目(2023CXGC010905)


Calculation and evaluation of suitable ecological flow in Cao"e River
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Affiliation:

1.Hohai University;2.Zhejiang Water Conservancy and Hydropower Survey and Design Institute Co,Ltd;3.Institute of Hydrology and Water Resources,Nanjing Institute of Hydraulic Sciences

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    摘要:

    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。

    Abstract:

    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 the reduced runoff data of the two control sections of Dongshabu and Huangniqiao in the Cao'e River Basin from 1961 to 2017, the results show that the reduced 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 applicability of different methods in the Cao'e River Basin research area was comprehensively evaluated using accuracy, satisfaction rate and suitability as the indicators, and finally the monthly flow change method was recommended as the calculation method of suitable ecological 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 provides a reference for the ecological control of reservoirs in the basin.

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  • 收稿日期:2023-06-19
  • 最后修改日期:2023-12-22
  • 录用日期:2023-12-26
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