scholarly journals Methane Emission from Paddy Fields and its Mitigation Options on a Field Scale

2006 ◽  
Vol 21 (3) ◽  
pp. 135-147 ◽  
Author(s):  
Kazunori Minamikawa ◽  
Naoki Sakai ◽  
Kazuyuki Yagi
Keyword(s):  
Methane Emission ◽  
Paddy Fields ◽  
Field Scale ◽  
Mitigation Options

Methane emission from paddy fields in Taiwan

2001 ◽  
Vol 33 (2) ◽  
pp. 157-165 ◽  
Author(s):  
S.-S. Yang ◽  
H.-L. Chang
Keyword(s):  
Methane Emission ◽  
Paddy Fields

Northward shift of historical methane emission hotspots from the livestock sector in China and assessment of potential mitigation options

2019 ◽  
Vol 272-273 ◽  
pp. 1-11 ◽  
Author(s):  
Peng Xu ◽  
Yajun Liao ◽  
Yi Zheng ◽  
Chenxu Zhao ◽  
Xiangfei Zhang ◽  
...  
Keyword(s):  
Methane Emission ◽  
Mitigation Options ◽  
Livestock Sector

scholarly journals Isolation of Key Methanogens for Global Methane Emission from Rice Paddy Fields: a Novel Isolate Affiliated with the Clone Cluster Rice Cluster I

2007 ◽  
Vol 73 (13) ◽  
pp. 4326-4331 ◽  
Author(s):  
Sanae Sakai ◽  
Hiroyuki Imachi ◽  
Yuji Sekiguchi ◽  
Akiyoshi Ohashi ◽  
Hideki Harada ◽  
...  
Keyword(s):  
Methane Emission ◽  
Methane Production ◽  
Rice Paddy ◽  
Defined Medium ◽  
Paddy Fields ◽  
Low Concentrations ◽  
In Situ Conditions ◽  
Culture Independent ◽  
Rice Paddy Fields

ABSTRACT Despite the fact that rice paddy fields (RPFs) are contributing 10 to 25% of global methane emissions, the organisms responsible for methane production in RPFs have remained uncultivated and thus uncharacterized. Here we report the isolation of a methanogen (strain SANAE) belonging to an abundant and ubiquitous group of methanogens called rice cluster I (RC-I) previously identified as an ecologically important microbial component via culture-independent analyses. To enrich the RC-I methanogens from rice paddy samples, we attempted to mimic the in situ conditions of RC-I on the basis of the idea that methanogens in such ecosystems should thrive by receiving low concentrations of substrate (H2) continuously provided by heterotrophic H2-producing bacteria. For this purpose, we developed a coculture method using an indirect substrate (propionate) in defined medium and a propionate-oxidizing, H2-producing syntroph, Syntrophobacter fumaroxidans, as the H2 supplier. By doing so, we significantly enriched the RC-I methanogens and eventually obtained a methanogen within the RC-I group in pure culture. This is the first report on the isolation of a methanogen within RC-I.

scholarly journals METHANE EMISSION FROM PADDY SOIL IN RELATION TO SOIL TEMPERATURE IN TROPICAL REGION

2016 ◽  
Vol 78 (1-2) ◽  
Author(s):  
Fazli P. ◽  
Hasfalina C. M. ◽  
Mohamed Azwan M. Z. ◽  
Umi Kalsom M. S. ◽  
Nor Aini A. R. ◽  
...  
Keyword(s):  
Soil Temperature ◽  
Methane Emission ◽  
Paddy Soil ◽  
Emission Rate ◽  
Paddy Fields ◽  
Tropical Region ◽  
Emission Pattern ◽  
Short Period ◽  
Methane Emission Rate

Methane (CH4) is 21 times more powerful as a greenhouse gas than carbon dioxide. Wetlands including flooded paddy fields are one of the major sources for this gas. Paddy fields are responsible for producing 25 to 54 Tg of CH4 annually. Methane emission rate could be affected by several factors such as irrigation pattern, fertilizer type, soil organic matter and soil temperature. Among them, soil temperature is a determining factor which deserves to be investigated. This study performed with the aim of understanding the effect of soil temperature on the methane emission rate from paddy soil in a short period of time (hourly) and long term (during rice growing season). The results of this study suggest that soil temperature could control the amount of methane emission and there is a positive and strong correlation in both soil temperature and methane emission pattern in short period of time. However, in case of long term trend, other factors such as water management and plant age decreased this correlation from 0.768 to 0.528.

Field-scale evaluation of the uptake of Perfluoroalkyl substances from soil by rice in paddy fields in South Korea

2019 ◽  
Vol 671 ◽  
pp. 714-721 ◽  
Author(s):  
Hyerin Kim ◽  
Okon Dominic Ekpe ◽  
Jong-Hyeon Lee ◽  
Dong-Hoon Kim ◽  
Jeong-Eun Oh
Keyword(s):  
South Korea ◽  
Paddy Fields ◽  
Perfluoroalkyl Substances ◽  
Field Scale ◽  
Scale Evaluation

Estimation of methane emission in organic paddy fields using remote sensing indexes

2018 ◽  
Vol 44 ◽  
pp. S59
Author(s):  
S. Kingpaiboon ◽  
S. Khantotong ◽  
P. Mungkarndee
Keyword(s):  
Remote Sensing ◽  
Methane Emission ◽  
Paddy Fields

Effect of soil temperature on methane emission from paddy fields

Chemosphere ◽  
1993 ◽  
Vol 26 (1-4) ◽  
pp. 247-250 ◽  
Author(s):  
D.C. Parashar ◽  
Prabhat K. Gupta ◽  
J. Rai ◽  
R.C. Sharma ◽  
N. Singh
Keyword(s):  
Soil Temperature ◽  
Methane Emission ◽  
Paddy Fields
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