Investigation and Evaluation of Water Quality Status in Yinglonghu Reservoir and Its Prevention and Control Measures
In order to understand the water quality status of Yinglong Lake,based on routine monitoring data of water quality in Nan'an District,Chongqing from 2013 to 2022,this paper uses single factor evaluation method and comprehensive nutritional status index method to analyze and study its water quality status in the past decade.The study found that the water quality of Yinglonghu Reservoir did not meet the Class Ⅲ standard for surface water in all other years except for 2015,and the main exceeding factor was total phosphorus;The comprehensive nutrition-al status index ranges from 53.8 to 63.4,showing moderate or above eutrophication,and is more prominent in win-ter.To analyze the reasons for the deterioration of water quality in Yinglong Lake,this paper combines the water quality status of the Changtang River,the main stream of Yinglong Lake Reservoir,and the distribution of sur-rounding pollution sources over the years.Through investigation and analysis,it is found that domestic pollution sources,agricultural planting,and aquaculture pollution sources are the main factors affecting the water quality of Yinglong Lake Reservoir.Targeted prevention and control measures such as controlling upstream pollution sources,improving the surrounding environment of the lake and reservoir,and establishing a monitoring and early warning system are proposed.
Yinglong Lake Reservoirsingle factor evaluation methodcomprehensive nutritional status methodpollution prevention and control countermeasures
NETL
NSTL
万方数据
