Methane Fluxes from the Pantanal Floodplain in Brazil: Seasonal Variation

2000 ◽  
pp. 95-99 ◽  
Author(s):  
Plínio C. Alvalá ◽  
Volker W. J. H. Kirchhoff
Keyword(s):  
Seasonal Variation ◽  
Methane Fluxes

Seasonal Variation of Methane Fluxes in a Mangrove Ecosystem in South India: An Eddy Covariance-Based Approach

2021 ◽  
Author(s):  
Palingamoorthy Gnanamoorthy ◽  
S. Chakraborty ◽  
R. Nagarajan ◽  
R. Ramasubramanian ◽  
V. Selvam ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Eddy Covariance ◽  
South India ◽  
Mangrove Ecosystem ◽  
Methane Fluxes

The Characteristics and Seasonal Variation of Methane Fluxes From an Alpine Wetland in the Qinghai Lake watershed, China

Wetlands ◽  
2021 ◽  
Vol 41 (5) ◽  
Author(s):  
Fangtao Wu ◽  
Shengkui Cao ◽  
Guangchao Cao ◽  
Kelong Chen ◽  
Changhui Peng
Keyword(s):  
Seasonal Variation ◽  
Qinghai Lake ◽  
Alpine Wetland ◽  
Methane Fluxes

scholarly journals Tropical forest soils serve as substantial and persistent methane sinks

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jun-Fu Zhao ◽  
Shu-Shi Peng ◽  
Meng-Ping Chen ◽  
Guan-Ze Wang ◽  
Yi-Bin Cui ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Seasonal Variation ◽  
Tropical Forest ◽  
Tropical Forests ◽  
Forest Soils ◽  
Forest Site ◽  
Methane Uptake ◽  
Global Soil ◽  
Methane Fluxes ◽  
Methane Sink

AbstractAlthough tropical forest soils contributed substantially global soil methane uptake, observations on soil methane fluxes in tropical forests are still sparse, especially in Southeast Asia, leading to large uncertainty in the estimation of global soil methane uptake. Here, we conducted two-year (from Sep, 2016 to Sep, 2018) measurements of soil methane fluxes in a lowland tropical forest site in Hainan island, China. At this tropical forest site, soils were substantial methane sink, and average annual soil methane uptake was estimated at 2.00 kg CH4-C ha−1 yr−1. The seasonality of soil methane uptake showed strong methane uptake in the dry season (−1.00 nmol m−2 s−1) and almost neutral or weak soil methane uptake in the wet season (−0.24 nmol m−2 s−1). The peak soil methane uptake rate was observed as −1.43 nmol m−2 s−1 in February, 2018, the driest and coolest month during the past 24 months. Soil moisture was the dominant controller of methane fluxes, and could explain 94% seasonal variation of soil methane fluxes. Soil temperature could not enhance the explanation of seasonal variation of soil methane fluxes on the top of soil moisture. A positive relationship between soil methane uptake and soil respiration was also detected, which might indicate co-variation in activities of methanotroph and roots and/or microbes for soil heterotrophic respiration. Our study highlights that tropical forests in this region acted as a methane sink.

MS Disease Activity Shows Seasonal Variation

2010 ◽  
Vol 43 (20) ◽  
pp. 33
Author(s):  
JEFF EVANS
Keyword(s):  
Seasonal Variation ◽  
Disease Activity

Seasonal Variation in Eating Satisfaction in Norway

2000 ◽  
Author(s):  
Judith Perry ◽  
David Silvera ◽  
Jan Rosenvinge
Keyword(s):  
Seasonal Variation

Seasonal variation of plasma free normetanephrine concentrations: implications for biochemical diagnosis of pheochromocytoma

2014 ◽  
Vol 122 (03) ◽  
Author(s):  
C Pamporaki ◽  
M Bursztyn ◽  
M Reimann ◽  
T Ziemssen ◽  
SR Bornstein ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Biochemical Diagnosis
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