湖泊科学2026，Vol.38Issue(1)：142-153,中插16,13.DOI:10.18307/2026.0121
深水型水源水库底部缺氧防控的综合策略研究
Comprehensive strategy research on the prevention and control of hypoxia at the bottom of deep water source reservoirs
摘要
Abstract
Lake and reservoir-type water sources play a vital role in ensuring regional water security and are crucial to China's water supply.This study focused on the Panjiakou Reservoir,which is a vital water source for the Luanhe-Tianjin Water Diversion Pro-ject.A three-dimensional numerical model was used to reveal how bottom hypoxia responds to varying reservoir operations and ni-trate concentrations in the inflow.Based on these findings,we have proposed comprehensive strategies for preventing and control-ling bottom hypoxia.In this paper,measured reservoir data from 2017 to 2018 were used to verify the model's reliability.The re-sults showed that increasing the outflow from the reservoir significantly shortened the duration of bottom hypoxia and reduced its se-verity during the later stage of thermal stratification.Furthermore,a substantial reduction in nitrate concentration in the inflow re-sulted in a notable increase in the duration,severity and spatial extent of bottom hypoxia.Based on the reservoir's actual operation and the water supply quality standards,this article makes the following suggestions:1)Joint scheduling with the downstream Dahe-iting Reservoir should be implemented,with adjustments to outflow volumes made during January-April and September-December to concentrate discharge in mid-to-late October.This optimization could reduce the duration of severe hypoxia and the maximum hypoxic area by 54％and 23％,respectively.Secondly,we recommend reducing the upstream nitrate concentration to 1.5-2.0 mg/L as part of watershed pollution control efforts.This approach would ensure that the total nitrogen concentration in the discharged water meets the required standards while maximizing the nitrate's mitigating effect on bottom hypoxia.Our study proposes a comprehensive strat-egy for protecting the quality of reservoir water from multiple perspectives,including'controlling the concentration of pollution sources upstream,preventing reservoir hypoxia and ensuring compliance with downstream water quality standards,which are impor-tant for protecting and restoring aquatic environments in deep water source reservoirs.关键词
深水型水源水库/水质模拟/溶解氧/水环境保护/潘家口水库Key words
Deep water source reservoirs/water quality simulation/dissolved oxygen/water environment protection/Panjiakou Reservoir引用本文复制引用
Yu Xiao,Zhuge Yisi,Liu Xiaobo,Du Qiang,Li Guoqiang,Tan Hongwu,Xu Xuming..深水型水源水库底部缺氧防控的综合策略研究[J].湖泊科学,2026,38(1):142-153,中插16,13.基金项目
国家自然科学基金项目(U2340224)资助. （U2340224）
