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- Xiaoyuan Yan
- Frontier Research Center for Global Change, Japan
- Hiroko Akiyama, Kazuyuki Yagi
- National Institute for Agro-environmental Sciences, Japan
- yanxy@jamstec.go.jp
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- Management practices are more influential than climate and soil
properties on CH4 emission from rice field.
- CH4 emission can be reduced by appropriate water management
and use of organic materials
- N2O emission from paddy and NO3, COM tend to be
smaller
- Effects of soil properties, fertilizer and crop type on N2O
emission can be easily overshadowed by effect of rainfall-induced soil
moisture change
- Nitrification inhibitors are effective to reduce N2O emission
from upland, slow release fertilizers are less effective; their effects
on paddy depend on water regime
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