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• 基金项目：

• 单正军

• 蔡道基

• 任阵海

• 摘要：通过土壤有机质的矿化作用,模拟估算温室气体在中国土壤中的释放量,结果表明,CO₂从土壤中的释放量为37.5亿t/a,CH₄从稻田中的释放量为0.20亿t/a,N₂O从稻田中的释放量为3.45万t/a.对土壤中温室气体释放估算提供了一种简便方法。由于掌握资料不足,准确估算需进一步研究。

• Abstract：Greenhouse gases emission from soils in China was assessed based on the mineralization rate of soil organic matter. It was estimated that 3. 75 billion tones of CO₂ from soils and 20 million tones of methane and 34500 tones of N₂O from paddy soils in China were emitted into atmosphere every year. The assessment provides a simple method for assessing greenhouse gases emission from soils. Because of the limitation of data available further studies should be taken for more reliable estimation.

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