Paddy field is an important carbon pool,with dual functions of carbon source and sink.Maximizing its sequestration potential is essential for promoting low-carbon and green agriculture production modes and ensuring sustainable agricultural development.The management modes of water and fertilizer in paddy fields greatly impact greenhouse gas emission and carbon sequestration capacity.We conducted a comprehensive review on the applica-tion of the DNDC model in water and fertilizer management of paddy field.We summarized the effects of various wa-ter and fertilizer management measures on greenhouse gas emission(CH4 and N2 O),soil carbon pool,and crop carbon sequestration in paddy fields from a perspective of carbon sequestration and emission reduction.Further-more,we evaluated carbon sequestration and emission reduction effects of different paddy rotation modes.Lastly,we described the application prospects of the DNDC model in paddy fields.The findings presented herein will serve as a valuable theoretical reference for promoting carbon sequestration and reducing carbon emission in rice produc-tion,and facilitating sustainable development of agricultural production.
biogeochemical modelfarmlandcarbon sequestration and emission reductionsensitivity analysis
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