Soil organic matter(SOM) is always a research focus in the soil and environmental science.
土壤腐殖物质一直是土壤学和环境学领域的研究热点。
Radiocarbon of soil organic matter (SOM) in Dinghushan subtropic forest has been adjusted by the "bomb-effect".
对鼎湖山亚热带森林土壤有机质(SOM)放射性碳进行了核爆效应校正。
The carbon in soil organic matter (SOM) is a significant component of the earth's carbon reservoirs, and participates in the global carbon circulation.
土壤有机质中的碳是地球碳库的重要组成部分，它参与全球碳循环。土壤有机质分解而产生的CO2和CH4是重要的温室气体。
Fire can also reduce the content of organic matter (SOM) in the surface layer, and it's most obvious in the O and A soil layers at the same year after burning.
火烧会减少湿地土壤的有机质含量，火烧当年湿地土壤草根层与腐殖质层有机质含量下降尤为明显；
Soil organic matter (SOM) is the constitutive and biological basic substance of soil, is the condition and product of vital activity.
有机质（SOM）是土壤具有结构性和生物性的基本物质，它是生命活动的条件，也是生命活动的产物。
Soil organic matter (SOM) is the constitutive and biological basic substance of soil, is the condition and product of vital activity.
有机质（SOM）是土壤具有结构性和生物性的基本物质，它是生命活动的条件，也是生命活动的产物。
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