淮河中游适宜生态流量计算的水文学方法优选  

Optimization of Hydrological Methods for Suitable Ecological Flow in the Middle Reaches of Huaihe River

作　　者：王冰冰[1] 陆宝宏[1] 朱小敏 胡思波 谢汶龙 肖培伟 WANG Bingbing;LU Baohong;ZHU Xiaomin;HU Sibo;XIE Wenlong;XIAO Peiwei(College of Hydrology and Water Resources,Hohai University,Nanjing 210024,Jiangsu,China;Huaneng Lancang River Hydropower Inc.,Kunming 650209,Yunnan,China;PowerChina Zhongnan Engineering Corporation Limited,Changsha 410014,Hunan,China;CHN Energy Jinshajian Xulong Hydropower Co.,Ltd.,Chengdu 610041,Sichuan,China)

机构地区：[1]河海大学水文水资源学院,江苏南京210024 [2]华能澜沧江水电股份有限公司,云南昆明650209 [3]中国电建集团中南勘测设计研究院有限公司,湖南长沙410014 [4]国家能源集团金沙江旭龙水电有限公司,四川成都610041

出　　处：《水力发电》2025年第5期1-7,111,共8页Water Power

基　　金：国家自然科学基金联合基金项目(U2240218);华能集团科技项目水电站施工图阶段第一批重大科研项目(HNKJ22-H87TB);金沙江旭龙水电站建设期影响区域环境水体监测及评估项目(XL-FW-2023-012)。

摘　　要：为确定淮河中游的适宜生态流量及合理的计算方法,基于1985年~2021年吴家渡和小柳巷水文站逐月平均流量数据,采用7种水文学方法计算两断面适宜生态流量过程,从水文节律、偏差率、满足度和适宜度等方面分析了各种计算方法的适用性。结果表明:在水文节律方面,逐月频率计算法和NGPRP法对天然流量模拟明显较其他方法差;在适宜度综合评价方面,Tennant法、改进Tennant法及VMF法月流量偏差率上均最优,Tennant法、改进Tennant法和NGPRP法在月流量满足度上具有明显优势,各方法在月流量适宜度上均表现较好,改进Tennant法和VMF法适宜度综合指数最优;基于长系列流量数据C s/C v进行优化的改进Tennant法更适用于淮河中游适宜生态流量计算,两断面逐月生态流量范围分别为75.9~1010.6 m^(3)/s和89.4~1077.6 m^(3)/s。研究成果可为淮河流域水资源合理开发提供定量化依据。To determine the optimal ecological flow and appropriate ecological flow calculation methods for the middle reaches of Huaihe River,seven hydrological methods are used to calculate the suitable ecological flow processes for the two sections based on the monthly average flow data from the Wujiadu and Xiaoliuxiang hydrological stations between 1985 and 2021,and the applicability of each method is evaluated based on hydrological rhythm,deviation rate,satisfaction and suitability.The results show that:(a)in terms of hydrological rhythm,the monthly frequency method and the NGPRP method perform significantly worse in simulating natural flow compared to the other methods;(b)in terms of the composite evaluation of suitability,the Tennant method,improved Tennant method and VMF method demonstrate the best performance in terms of the monthly flow deviation rate,and the Tennant method,improved Tennant method and NGPRP method exhibit clear advantages in monthly flow satisfaction rates,while all methods perform well regarding monthly flow suitability,in which,the improved Tennant method and VMF method have the highest monthly comprehensive suitability indices;and(c)the improved Tennant method,optimized based on the long series flow data of Cs/Cv,is identified as the most suitable hydrological method for calculating ecological flow in the middle reaches of Huaihe River,and the calculated monthly ecological flow ranges for the two sections are 75.9-1010.6 m^(3)/s and 89.4-1077.6 m^(3)/s,respectively.This study provides a quantitative basis for the rational development of water resources in Huaihe River Basin.

关 键 词：适宜生态流量 水文学法 水文节律 适宜度综合指数 淮河中游 

分 类 号：TV213.4[水利工程—水文学及水资源] X143[环境科学与工程—环境科学]