Eddy Covariance Measurements of Methane Flux at a Tropical Peat Forest in Sarawak, Malaysian Borneo
Eddy Covariance Measurements of Methane Flux at a Tropical Peat Forest in Sarawak, Malaysian Borneo
复制标题
马来西亚婆罗洲沙捞越热带泥炭森林甲烷通量的涡流协方差测量
DOI：
--
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
L. Melling
中科院分区：
文献类型：
--
作者：
Angela C I Tang;P. Stoy;R. Hirata;K. K. Musin;E. B. Aeries;Joseph Wenceslaus;L. Melling
热带生物源是最近全球大气甲烷浓度增加的一个可能原因。为了提高我们对热带甲烷来源的理解，我们使用涡度协方差技术测量了马来西亚婆罗洲热带泥炭森林生态系统和大气之间的CH 4通量（FCH 4），为期2个月。在测量期间，每日平均FCH 4为0.024 g C-CH 4·m−2·day−1，与热带水稻农业生态系统和北方沼泽生态系统的涡动协方差FCH 4测量值相似。线性建模分析表明，空气温度（Tair）是至关重要的模拟FCH 4之前，地下水位突破了表面，地下水位单独解释了约20%的观测到的FCH 4变异一旦出现积水。未来的研究应每年测量多个热带生态系统的FCH 4，以更好地限制热带生物甲烷来源。
Tropical biogenic sources are a likely cause of the recent increase in global atmospheric methane concentration. To improve our understanding of tropical methane sources, we used the eddy covariance technique to measure CH4 flux (FCH4) between a tropical peat forest ecosystem and the atmosphere in Malaysian Borneo over a 2‐month period during the wet season. Mean daily FCH4 during the measurement period, on the order of 0.024 g C‐CH4·m−2·day−1, was similar to eddy covariance FCH4 measurements from tropical rice agroecosystems and boreal fen ecosystems. A linear modeling analysis demonstrated that air temperature (Tair) was critical for modeling FCH4 before the water table breached the surface and that water table alone explained some 20% of observed FCH4 variability once standing water emerged. Future research should measure FCH4 on an annual basis from multiple tropical ecosystems to better constrain tropical biogenic methane sources.
影响因子：
18.3
作者：
Helmig, Detlev;Rossabi, Samuel;Pozzer, Andrea
通讯作者：
Pozzer, Andrea
影响因子：
11.6
作者：
C. Wille;L. Kutzbach;T. Sachs;D. Wagner;E. Pfeiffer
通讯作者：
C. Wille;L. Kutzbach;T. Sachs;D. Wagner;E. Pfeiffer
影响因子：
9.4
作者：
Bloom, A. Anthony;Lee-Taylor, Julia;McLeod, Andy R.
通讯作者：
McLeod, Andy R.