基于改进物元分析法的疏勒河中上游生态流量计算与评价  

Calculation and Evaluation of Ecological Flow in the Middle and Upper Reaches of Shule River Based on Improved Matter-element Analysis

作　　者：闫宏华 杨文举[1] 赵映东 YAN Honghua;YANG Wenju;ZHAO Yingdong(Water Resources Utilization Center of Taolai River Basin,Gansu Provincial Water Resources Department,Jiuquan 735000,Gansu,China)

机构地区：[1]甘肃省水利厅讨赖河流域水资源利用中心,甘肃酒泉735000

出　　处：《水力发电》2023年第12期5-10,118,共7页Water Power

基　　金：甘肃省水利厅2022年度第一批省级水资源费项目(甘水资源发〔2022〕94号);甘肃省水利厅2023年度第一批省级水资源费项目(甘水资源发〔2023〕88号)。

摘　　要：适宜生态流量是保障河流水生态系统健康的重要变量,合理评估适宜生态流量具有现实意义。以河西走廊内流水系的第二大河疏勒河为研究对象,基于疏勒河干流中上游昌马堡水文站64年的长时间径流资料,选取年内展布法、NGPRP法、最小生态流量法、逐月频率法及Tennant法5种计算方法对疏勒河干流中上游生态流量进行计算,并建立基于博弈论的改进物元分析模型对计算结果进行评价分析。结果表明:采用年内展布法与逐月最小流量法确定的疏勒河干流中上游最小生态流量,以及采用逐月频率法取法Ⅰ与逐月频率法取法Ⅲ确定的疏勒河干流中上游适宜生态流量符合该流域的生态水文特征,同时表明基于博弈论的改进物元分析模型适用性较高。研究可为疏勒河干流中上游生态修复提供科学参考,也为计算并评价河道生态流量过程提供新方法。Appropriate ecological flow is an important variable to ensure the health of river aquatic ecosystem.It is of practical significance to evaluate the appropriate ecological flow reasonably.Taking Shule River,the second largest river in Hexi Corridor,as the research object,five calculation methods,including the annual distribution method,the NGPRP method,the minimum ecological flow method,the monthly frequency method and the Tennant method,are selected to calculate the ecological flow in the middle and upper reaches of the Shule River based on the 64-year long-term runoff data of the Changmabao Hydrological Station in the middle and upper reaches of Shule River,and an improved matter-element analysis model based on game theory is established to evaluate and analyze the calculation results.The results show that the minimum ecological flow in the middle and upper reaches of Shule River determined by the annual distribution method and the monthly minimum flow method,and the suitable ecological flow in the middle and upper reaches of Shule River determined by the monthly frequency method I and the monthly frequency method III are consistent with the eco-hydrological characteristics of the basin.At the same time,it shows that the improved matter-element analysis model based on game theory has higher applicability.The research provides a scientific reference for the ecological restoration of the middle and upper reaches of Shule River,and also provides a new method for calculating and evaluating the ecological flow process of the river.

关 键 词：生态流量 评价 年内展布法 NGPRP法 最小生态流量法 逐月频率法 TENNANT法 改进物元分析法 博弈论 疏勒河 

分 类 号：P333[天文地球—水文科学]