文章基本信息

标题：LAKE WATER ENVIRONMENT ECOSYSTEM RESTORATION BASED ON CLIMATE CHANGE A CASE STUDY
本地全文：下载
作者：Xinyang Ma
期刊名称：Fresenius Environmental Bulletin
印刷版ISSN：1018-4619
出版年度：2021
卷号：30
期号：6
页码：6761-6768
语种：English
出版社：PSP Publishing
摘要：As a wind vane of climate change, lakes have a series of problems, such as functional degradation, reduction of ecological diversity, and weakening of self-purification capacity. The integrity of the water environment ecosystem has been destroyed. In this paper,QinghaiLakeis selectedas the research object, taking temperature and precipitation as the starting point, and the impact of water vertical temperature, concent of dissolved oxygen, precipitation on water environment is analyzed emphatically. The increase of temperature increases the vertical temperature dif-ference of Qinghai Lake, about 1.2℃C/m, which de-creases the content of dissolved oxygen and the depth of oxygen layer. Due to precipitation, surface runoff and sink flow processes are strengthened. As a result, the indicator concentrations of TP, TN and PPCPs in Qinghai Lake increased. On the basis of clarifying the main factors that destroy the self-puri-fication capacity of lakes, strictly following the eco-logical principles, the comprehensive ecological res-toration countermeasures of water environment are proposed according to the results of biochemical simulation experiments, which are mainly bioreme-diation and phytoremediation, supplemented by physical and chemical restoration methods. The SWAT model is used to simulate and predict the fu-ture water environment parameters. The results show that the ecosystem of Qinghai Lake has been im-proved well, and at the same time, it also provides a scientific guidance for the feasibility oflake restora-tion work in China.
关键词：Climate change;Oinghai Lake;water environment;eco-logical restoration;countermeasure