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Rice agriculture is a large anthropogenic source of atmospheric methane (CH 4 ). The reliable estimation of CH 4 emissions requires frequent measurements to trace diurnal and seasonal variations. To evaluate the appropriate intervals and optimal time of day to measure CH 4 emissions using t...


Minamikawa KYagi, K.Tokida TSander, Bjoern OleWassmann, Reiner[Appropriate frequency and time of day to measure methane emissions from an irrigated rice paddy in Japan using the manual closed chamber method]Appropriate frequency and time of day to measure methane emissions from an irrigated rice paddy in Japan using the manual closed chamber method

This study comprises field experiments on methane emissions from rice fields conducted with an Eddy-Covariance (EC) system as well as test runs for a modified closed chamber approach based on measurements at nighttime. The EC data set covers 4 cropping seasons with highly resolved emission rates ...


Wassmann, ReinerAlberto, Ma. Carmelita R.Tirol-Padre, AgnesHoang, Nghia TrongRomasanta, Ryan R.Sander, Bjoern Ole[Increasing sensitivity of methane emission measurements in rice through deployment of ‘closed chambers’ at nighttime]Increasing sensitivity of methane emission measurements in rice through deployment of ‘closed chambers’ at nighttime

Water drainage is an important mitigation option for reducing CH4 (methane) emissions from residue-amended paddy soils. Several studies have indicated a long-term reduction in CH4 emissions, even after re-flooding, suggesting that the mechanism goes beyond creating temporary oxidized conditions i...


Tariq, AzeenJensen, Lars S.Sander, Bjoern Olede Tourdonnet, StephaneAmbus, Per LennartThanh, Phan HuuTrinh, Mai Vande Neergaard, Andreas[Paddy soil drainage influences residue carbon contribution to methane emissions]Paddy soil drainage influences residue carbon contribution to methane emissions

The ‘alternate wetting and drying’ (AWD) technology for rice is a water-saving technology with a high greenhouse gas (GHG) mitigation potential. The Philippine government attempts to disseminate AWD in all national irrigation systems in order to adapt to increasingly scarce water resources. This...


Sander, Bjoern OleWassmann, ReinerPalao, Leo KrisNelson, Andrew[Climate-based suitability assessment for alternate wetting and drying water management in the Philippines: a novel approach for mapping methane mitigation potential in rice production]Climate-based suitability assessment for alternate wetting and drying water management in the Philippines: a novel approach for mapping methane mitigation potential in rice production

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