气候变化领域集成服务门户(CCPortal): Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations

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DOI	10.1016/j.atmosenv.2021.118384
	Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations
	Yang P.; Huang J.; Yang H.; Peñuelas J.; Tang K.W.; Lai D.Y.F.; Wang D.; Xiao Q.; Sardans J.; Zhang Y.; Tong C.
发表日期	2021
ISSN	1352-2310
卷号	253
英文摘要	Static floating chambers (FCs) are the conventional method to measure CH4 fluxes across the water-air interface in ponds, while thin boundary layer (TBL) modelling is increasingly used to estimate CH4 fluxes. In this study, both FCs measurements and TBL models of gas transfer velocity were used to determine CH4 evasion from aquaculture ponds in southeastern China. The surface water CH4 concentrations ranged from 0.4 to 9.1 μmol L-1 with an average of 4.8 ± 0.8 μmol L-1. CH4 flux was always positive, indicating the ponds as a persistent CH4 source to air. Mean CH4 flux based on different TBL models showed large variations, ranging between 19 and 316 μmol m−2 h−1. Compared against the direct measurement FCs, three TBL models developed for the open sea, flowing estuarine system and lentic ecosystem (TBLW92a, TBLRC01, and TBLCL98, respectively) overestimated CH4 emission by 40–200%, while the wind tunnel-based TBL model (TBLLM86) underestimated CH4 emission. Two TBL models developed for lakes (TBLW92b and TBLCW03) gave estimates similar to FCs. © 2021 Elsevier Ltd
关键词	Floating chambers Methane fluxes Shallow aquaculture pond Subtropical estuary Thin boundary layer models Water-air interface
语种	英语
scopus关键词	Aquaculture; Lakes; Phase interfaces; Wind tunnels; Aquaculture ponds; Boundary-layer model; CH$-4$; Floating chamber; Methane fluxes; Shallow aquaculture pond; Sub-tropical estuary; Thin boundary layer model; Thin boundary layers; Water-air interface; Boundary layers; methane; surface water; air-water interaction; aquaculture; boundary layer; diffusion; equation; estuarine environment; flux measurement; lentic environment; methane; pond; wind tunnel; air; air pressure; air temperature; aquaculture; Article; boundary layer; China; controlled study; correlation coefficient; ecosystem; electric conductivity; estuary; gas diffusion; pond; priority journal; water temperature; wind speed; China
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248491
作者单位	Key Laboratory of Humid Subtropical Eco-geographical Process of Ministry of Education, Fujian Normal University, Fuzhou, 350007, China; School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China; College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, 350007, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Department of Geography and Environmental Science, University of Reading, ReadingRG6 6AB, United Kingdom; CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, Catalonia, Spain; CREAF, Cderdanyola del VallèsCatalonia, Spain; Department of Biosciences, Swansea University, SwanseaSA2 8PP, United Kingdom; Department of Geography and Resource Management, The Chinese University of Hong Kong, Shati...
推荐引用方式 GB/T 7714	Yang P.,Huang J.,Yang H.,et al. Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations[J],2021,253.
APA	Yang P..,Huang J..,Yang H..,Peñuelas J..,Tang K.W..,...&Tong C..(2021).Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations.ATMOSPHERIC ENVIRONMENT,253.
MLA	Yang P.,et al."Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations".ATMOSPHERIC ENVIRONMENT 253(2021).