水利水电科技进展2026，Vol.46Issue(2)：97-105,9.DOI:10.3880/j.issn.1006-7647.2026.02.013
基于流量-水质T-Copula联合分布的赣江尾闾水系骨干河道氟化物水环境容量研究
Research on fluoride water environmental capacity in main channels of the lower Ganjiang River network based on joint distribution of flow rate with water quality using T-Copula model
摘要
Abstract
To analyze the spatiotemporal characteristics of the fluoride water environmental capacity in the main channels of the lower Ganjiang River network,the T-Copula function was introduced to construct an uncertainty water environmental capacity calculation framework based on the flow rate-water quality joint probability density distribution.Taking fluoride as the target pollutant,the distribution characteristics of the fluoride water environmental capacity in the main channels of the lower Ganjiang River network during different periods in 2024 were analyzed,and a sensitivity analysis was conducted based on the modified one-variable-at-a-time(OAT)method.The results indicate that all main channels possess a certain water environmental capacity throughout the year,although some channels face a potential risk of exceeding this capacity.The highest and lowest expected values of water environmental capacity were observed in the mainstream section of the lower Ganjiang River network and the northern branch's fishery water use zone,respectively.The expected values of the water environmental capacity in the river network during different periods exhibit a certain fluctuating pattern.The seasonal variation in river flow is identified as the key driving factor causing the dynamic changes in the fluoride water environmental capacity in the lower river network.关键词
河道水环境容量/流量-水质联合概率密度/T-Copula函数/氟化物/赣江尾闾水系Key words
river water environmental capacity/flow rate-water quality joint probability density/T-Copula function/fluoride/the lower Ganjiang River network引用本文复制引用
杨煊,褚克坚,秦硕,叶福竹,顾莉..基于流量-水质T-Copula联合分布的赣江尾闾水系骨干河道氟化物水环境容量研究[J].水利水电科技进展,2026,46(2):97-105,9.基金项目
赣江下游尾闾综合整治工程科研课题研究项目(JXTC2023020257C1) （JXTC2023020257C1）
国家自然科学基金长江水科学联合基金项目(U2040209) （U2040209）
国家自然科学基金项目(51879078) （51879078）
