Open AccessAnalysis and Research on the Pollution of Lakes in Beijing
Author(s) -
Pengfei Zhang,
Xiaoyu Cui,
Yunxia Gao,
Cui qingfei
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/791/1/012174
Subject(s) - beijing , eutrophication , economic shortage , pollution , environmental science , geography , water scarcity , water level , water resource management , hydrology (agriculture) , environmental protection , physical geography , china , ecology , biology , geology , archaeology , cartography , agriculture , government (linguistics) , linguistics , philosophy , geotechnical engineering , nutrient
This article analyzes the pollution status of 22 key lakes in Beijing in the past 10 years. The results show that from 2010 to 2014, the proportion of lakes in Beijing’s Class II water bodies was 17.4%, and the average proportion of lakes in Class III water bodies from 2015 to 2020 was 29.2%; the decline in the proportion of Class V water bodies from 2016 to 2020 was more obvious. Water bodies inferior to Class V have been basically eliminated, but in 2019, many lakes have been in a state of moderate eutrophication. At the same time, the analysis during the year showed that the proportion of Type II water bodies was low from June to September, the lowest value was 11.7% in August, and the proportion was relatively high in February and March, and the highest value was 40.5% in March; In August, the proportions of Category IV and V water bodies reached the highest values of 33% and 24% respectively, which is related to the increase in summer water temperature and the shortage of water resources that can supply lakes. The research results are expected to provide support for the improvement of urban lake water environment.