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Rice production is affected by changing climate conditions and has
the dual role of contributing to global warming through emissions
of the greenhouse gas methane. Climate change has been recognized
as a major threat to the global environment. Because of
insufficient field data, rice-growing countries face a problem when
trying to comply with the United Nations Framework Convention on
Climate Change stipulations to compile a national inventory of
emissions and to explore mitigation options. Given the expected
doubling in rice production in Asia, the need to evaluate the
interaction between climate change and rice production is critical
to forming a sound basis for future directions of technology
developments by policy makers, agriculturists, environmentalists,
rice producers, and rice consumers. The present book comprises two
sections. The first part documents a comprehensive overview of the
results achieved from an interregional research effort to quantify
methane emission from major rice ecosystems and to identify
efficient mitigation options. This research report broadens
understanding of the contribution of rice cultivation to methane
emissions and clarifies that emissions are relatively low, except
in specific rice ecosystems, and that these high emissions could be
ameliorated without sacrificing yield. The second section shows
results from other projects that investigated the role of rice
cultivators in field and laboratory approaches. The findings
represent inputs for future modeling approaches in the role of rice
cultivators. The expanded database generated by other projects is
reflected in modeling efforts.
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