Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations
文献类型：期刊论文
| 作者 | Yang, Ping; Huang, Jiafang; Yang, Hong; Penuelas, Josep; Tang, Kam W.; Lai, Derrick Y. F.; Wang, Dongqi; Xiao, Qitao; Sardans, Jordi; Zhang, Yifei |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2021 |
| 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 ?mol L-1 with an average of 4.8 ? 0.8 ?mol 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 ?mol 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. |
| 源URL | [http://159.226.73.51/handle/332005/20536]  |
| 专题 | 中国科学院南京地理与湖泊研究所 |
| 推荐引用方式 GB/T 7714 | Yang, Ping,Huang, Jiafang,Yang, Hong,et al. Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations[J]. ATMOSPHERIC ENVIRONMENT,2021,253. |
| APA | Yang, Ping.,Huang, Jiafang.,Yang, Hong.,Penuelas, Josep.,Tang, Kam W..,...&Tong, Chuan.(2021).Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations.ATMOSPHERIC ENVIRONMENT,253. |
| MLA | Yang, Ping,et al."Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations".ATMOSPHERIC ENVIRONMENT 253(2021). |
入库方式： OAI收割
来源：南京地理与湖泊研究所
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