[ 18 ] found that Chinese fields emitted 6.4~12.0 Tg C per year within a continuous flooding scenario under 1990 climate land-use conditions by modeling CH 4 emissions using DNDC, while southern China showed larger CH 4 emissions than other parts, and in another paper, an increasing trend of CH 4 emission of rice paddies in China from 2000 to 2020 by different management scenarios was also found [ 19 ].
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Characterizing Spatiotemporal Dynamics of CH₄ Fluxes from Rice Paddies of Cold Region in Heilongjiang Province under Climate Change.
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Spatially, the CH 4 fluxes showed a decreasing trend from west to east, and the climatic tendencies in the northern and western parts were higher.