Effect of Water Management on Greenhouse Gas Emissions from Rice Paddies Using a Slow-release Fertilizer
نویسندگان
چکیده
منابع مشابه
Greenhouse gas emissions from rice
Rice provides the staple food for over 60% of the world’s population. Globally 80% of rice is grown by small farmers in low income and developing nations, and in India rice farming is a key source of employment for the 60% of Indian workers still dependent on agriculture for work. Yet rice production is also an important source of greenhouse gas emissions, for example responsible for between 3 ...
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1. Rice is an important agricultural production system with more than 80 million ha of irrigated rice paddies in annual production globally. As water resources become scarcer, the competition between urban development and agriculture for available water will intensify. Paddy rice cropland distribution and management intensity will need to evolve over the coming decades to accommodate increased ...
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Fertilized rice paddy soils emit methane while flooded, emit nitrous oxide during flooding and draining transitions, and can be a source or sink of carbon dioxide. Changing water management of rice paddies can affect net emissions of all three of these greenhouse gases. We used denitrification–decomposition (DNDC), a process-based biogeochemistry model, to evaluate the annual emissions of CH4, ...
متن کاملAssessing alternatives for mitigating net greenhouse gas emissions and increasing yields from rice production in China over the next twenty years.
Assessments of the efficacy of mitigation of greenhouse gas (GHG) emissions from paddy rice systems have typically been analyzed based on field studies. Extrapolation of the mitigation potential of alternative management practices from field studies to a national scale may be enhanced by spatially explicit process models, like the DeNitrification and DeComposition (DNDC) model. Our objective wa...
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ژورنال
عنوان ژورنال: Korean Journal of Environmental Agriculture
سال: 2023
ISSN: ['1225-3537', '2233-4173']
DOI: https://doi.org/10.5338/kjea.2023.42.2.14