Exploring the effects of extreme weather events on methane emissions from croplands: A study combining site and global modeling

Ye Xia,Congsheng Fu,Huawu Wu,Haohao Wu,Haixia Zhang,Aimin Liao,Jianyao Chen

Agricultural and Forest Meteorology（2023）

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摘要

•Calibrated CLM5BGCCrop simulates CH4 emissions well at both site and global scale.•Soil moisture and temperature are key controlling factors of cropland CH4 emissions.•CH4 emissions from rice are 1 to 2 magnitudes higher than those from wheat and corn.•Extreme heat and precipitation reduced and increased CH4 emissions, respectively.•The timing of extreme weather events is crucial in affecting CH4 emissions.

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关键词

CH4 emissions,Cropland ecosystems,Extreme high temperature,Extreme precipitation,CLM5BGC-Crop

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