冰封期湖泊溶解氧变化特征及代谢速率 杨文焕.pdf

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网络首发时间：2022-05-20 08:48:01
网络首发地址 DO 变化趋势存在一定差异.
关键词: 岱海；冰封期；溶解氧；新陈代谢速率

Variation characteristics of dissolved oxygen and metabolic rate in lakes during the
ice-covered period*

Yang Wenhuan1, Feng Dongdong1, Yang Fang2**, Li Weiping1, Zhou Xin1, Yao Zhi1 & Wang Lele3
(1: School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, )
(2: Chinese Academy of Environmental Sciences, Beijing 100012, )
(3: Daihai Comprehensive Treatment Management Committee of Liangcheng County, Wulanchabu 013750, )

Abstract: In ice-covered periods, the gas exchange between lakes and the atmosphere is blocked by ice sheets. The dissolved oxygen
content and consequently the water quality of the lakes are thus affected. To explore the metabolic rates and variation characteristics of
the dissolved oxygen, and its influencing factors in typical seasonal ice-covered lakes, dissolved oxygen content, water temperature and
photo-synthetically active radiation (PAR) were monitored at different depths of the lakes. In combination with the water quality
monitoring results, the variations of the dissolved oxygen and the influencing factors of the metabolic rates were analyzed to optimize

* 2021-11-04 收稿; 2022-02-21 收修改稿.
国家重点研发计划项目(2019YFC0409204)、国家自然科学基项目(41907338)和内蒙古自治区科技计划项目(2020GG0208)联
合资助.