新疆环境保护2024，Vol.46Issue(2)：11-18,8.
博斯腾湖CODCr污染现状及影响因素分析
Analysis of CODcr Pollution Status and Influencing Factors in Bosten Lake
摘要
Abstract
In recent years,the CODCr pollution problem of Bosten Lake has been prominent,which has restricted the sustainable development of regional social economy.At present,the research on CODCr in Bosten Lake has mainly focused on the analysis of the spatiotemporal characteristics of CODCr in non-long sequences,but there has been a lack of quantitative analysis of the causes of such spatiotemporal characteristics.In view of this,the long series characteristics of CODCr changes in Bosten Lake had been collected and analyzed.Then the main influencing factors and mechanism of CODCr pollution in Bosten Lake had been systematically discussed through statistic analysis analysis and model simulation.The main conclusions were that there was a conjugation effect on the influence of inflow load and lake water level on CODCr,and the dominant effect depended on the water level threshold.When the water level was lower than 1 047.1 m,the water level dilution was dominant,and when the water level was higher than 1 047.1 m,the inflow load was dominant.The hydrodynamic conditions of lakes were mainly controlled by wind-driven currents.In recent years,the wind speed has shown an upward trend,which has enhanced the water cycle in the lake area,and then affected the CODCr concentration in the western lake area.The algae concentration in the lake was negatively correlated with the water level and positively correlated with the CODCr concentration,and the internal mechanism of the significant correlation between CODCr and the algae concentration was that both were affected by the water level.This study has provided a scientific basis for the treatment of CODCr pollution in Bosten Lake,and proposed that the focus of future research is to strengthen the monitoring of vertical correlation data of sediment,water temperature and dissolved oxygen,so as to further analyze the impact of sediment on CODCr in water.关键词
博斯腾湖/CODCr/入湖负荷/湖泊藻类/水位/水动力模型Key words
Bosten Lake/CODCr/inflow load/lake algae/water level/hydrodynamic model分类
资源环境引用本文复制引用
郑刚,姚力,章文亭..博斯腾湖CODCr污染现状及影响因素分析[J].新疆环境保护,2024,46(2):11-18,8.基金项目
国家重点研发计划项目(2022YFC3202100) （2022YFC3202100）
江苏省水利科技项目(2021005) （2021005）
