干旱区生态环境知识资源中心(Arid): Under-ice metabolism in a shallow lake in a cold and arid climate

Arid

DOI	10.1111/fwb.13363
	Under-ice metabolism in a shallow lake in a cold and arid climate
	Song, Shuang 1; Li, Changyou 1; Shi, Xiaohong 1; Zhao, Shengnan 1; Tian, Weidong 1; Li, Zhijun 2; Bai, Yila 3; Cao, Xiaowei 2; Wang, Qingkai 2; Huotari, Jussi 4,5; Tulonen, Tiina 4; Uusheimo, Sari 4; Lepparanta, Matti 6; Loehr, John 4; Arvola, Lauri 4
通讯作者	Shi, Xiaohong
来源期刊	FRESHWATER BIOLOGY
ISSN	0046-5070
EISSN	1365-2427
出版年	2019
卷号	64 期号:10 页码:1710-1720
英文摘要	Winter is a long period of the annual cycle of many lakes in the northern hemisphere. Low irradiance, ice, and snow cover cause poor light penetration into the water column of these lakes. Therefore, in northern lakes, respiration often exceeds primary production leading to low dissolved oxygen concentrations. This study aimed to quantify under-ice metabolic processes during winter in an arid zone lake with little snow cover. This study was carried out in a mid-latitude lake in Inner Mongolia, northern China. The study lake receives relatively high incoming solar radiation on the ice in mid-winter, and radiation can penetrate down to the bottom sediment as the lake is shallow and the ice lacks snow cover. Primary production and respiration were estimated during two winters using high-frequency sensor measurements of dissolved oxygen. To quantify under-ice metabolic processes, sensors were deployed to different depths. During both winters, sensors collected data every 10 min over several weeks. The amount of solar radiation controlled photosynthesis under ice; temperature and photosynthesis together appeared to control respiration. The balance between gross primary production and ecosystem respiration was especially sensitive to changes in snow cover, and the balance between P and R decreased. Our data suggest that photosynthesis by plankton, submerged plants, and epiphytic algae may continue over winter in shallow lakes in mid-latitudes when there is no snow cover on the ice, as may occur in arid climates. The continuation of photosynthesis under ice buffers against dissolved oxygen depletion and prevents consequent harmful ecosystem effects.
英文关键词	Lake Wuliangsuhai net ecosystem production photosynthesis respiration winter limnology
类型	Article
语种	英语
国家	Peoples R China ; Finland
开放获取类型	Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000478675100001
WOS关键词	DISSOLVED-OXYGEN ; WULIANGSUHAI LAKE ; BACTERIAL PRODUCTION ; WATER TEMPERATURE ; INNER-MONGOLIA ; RESPIRATION ; CO2 ; DEPLETION ; O-2 ; VARIABILITY
WOS类目	Ecology ; Marine & Freshwater Biology
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215740
作者单位	1.Inner Mongolia Agr Univ, Water Conservancy & Civil Engn Coll, Hohhot, Peoples R China; 2.Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China; 3.Bohai Univ, Sch Math & Phys, Jinzhou, Peoples R China; 4.Univ Helsinki, Fac Biol & Environm Sci, Ecosyst & Environm Res Programme, Lammi Biol Stn, Lammi, Finland; 5.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Gansu, Peoples R China; 6.Univ Helsinki, Inst Atmospher & Earth Sci, Helsinki, Finland
推荐引用方式 GB/T 7714	Song, Shuang,Li, Changyou,Shi, Xiaohong,et al. Under-ice metabolism in a shallow lake in a cold and arid climate[J]. 中国科学院西北生态环境资源研究院,2019,64(10):1710-1720.
APA	Song, Shuang.,Li, Changyou.,Shi, Xiaohong.,Zhao, Shengnan.,Tian, Weidong.,...&Arvola, Lauri.(2019).Under-ice metabolism in a shallow lake in a cold and arid climate.FRESHWATER BIOLOGY,64(10),1710-1720.
MLA	Song, Shuang,et al."Under-ice metabolism in a shallow lake in a cold and arid climate".FRESHWATER BIOLOGY 64.10(2019):1710-1720.