A dataset of spatial distribution of water eutrophication indicators in Poyang Lake during high flow period from 2021 to 2022
Poyang Lake,the largest lake connected to the Yangtze River,plays an important role in preserving the ecological balance of the Yangtze River Basin.However,due to the escalating effects of climate change and human activities,the eutrophication status of the lake has been increasing year by year,resulting in a gradual deterioration of its ecological function.In order to study the spatio-temporal variation characteristics of eutrophication in Poyang Lake and protect its water resources and environment,we systematically collected water samples from 72 sites across the lake during the peak algae growth periods of the summers from 2021 to 2022.In the laboratory,the determination of eutrophication indicators,including total nitrogen,total phosphorus,permanganate index and chlorophyll-a at sampling sites was conducted in strict accordance with the methods stipulated by national standards and industrial standards.Based on this,we obtained the dataset of spatial distribution of water eutrophication indicators in Poyang Lake during high flow period from 2021 to 2022.This dataset can provide precise insights into the water pollution and eutrophication status,as well as the spatial distribution characteristics of Poyang Lake during high flow season,which has important data supporting significance for the pollution control of Poyang Lake basin and water environment protection of the Yangtze River basin.