水资源与水工程学报2024，Vol.35Issue(3)：67-74,8.DOI:10.11705/j.issn.1672-643X.2024.03.08
基于BHM-EcoFlow模型的汉江中下游河段水文-生态响应关系研究
Hydro-ecological response in lower-middle Hanjiang River based on BHM-EcoFlow model
摘要
Abstract
The hydro-ecological response of rivers is crucial for determining ecological flow thresholds.To address the issues of lack of ecological data and challenges of ecological modeling in current research,the BHM-EcoFlow(Bayesian hierarchical modelling-ecological flow)model is introduced.Based on the prior knowledge and measured data from different river sections and different stations in the same river section,this model is able to simulate the hydro-ecological response of the entire river,due to the effec-tive utilization of short-series data.Then,a case study of the mainstream of the lower-middle Hanjiang River in the year of 2011 is conducted to discuss the relationship between phytoplankton cell density,flow rate,and mixed layer temperature.In addition,the phytoplankton cell density in each river section under various flow conditions is further calculated.The results show that the BHM-EcoFlow model improves the applicability of short-series data and demonstrates a strong ability to identify complex hydro-ecological responses in the lower-middle Hanjiang River.This study can provide a technical support for the further calculation of environmental flow rate.关键词
水文-生态响应关系/生态流量/浮游植物密度/BHM-EcoFlow模型/贝叶斯层次分析/汉江中下游干流Key words
hydro-ecological response/ecological flow/phytoplankton cell density/BHM-EcoFlow model/Bayesian hierarchical analysis/mainstream of the lower-middle Hanjiang River分类
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李宜伦,张翔,赵烨,陶士勇,胡俊,闫少锋..基于BHM-EcoFlow模型的汉江中下游河段水文-生态响应关系研究[J].水资源与水工程学报,2024,35(3):67-74,8.基金项目
国家自然科学基金区域创新发展联合基金重点支持项目(U21A2002) （U21A2002）
湖北省水利科研项目(HBSLKY202310) （HBSLKY202310）
