Soil organic matter is the product of microbial decomposition of plant and animal residues.
土壤有机质是微生物分解植物和动物残体的产物。
Humus: Nonliving, finely divided organic matter in soil, derived from microbial decomposition of plant and animal substances.
腐殖质：土壤中无生命的、细小的有机物质。
The results show that these sulfur gases emitted from soils were identified as products of microbial decomposition of sulfur-containing amino acids, diethyl sulfate and reduction of sulfate.
结果表明：土壤释放的含硫气体是微生物分解含硫氨基酸、硫酸酯、还原硫酸盐的产物。
The results show that these sulfur gases emitted from soils were identified as products of microbial decomposition of sulfur-containing amino acids, diethyl sulfate and reduction of sulfate.
结果表明：土壤释放的含硫气体是微生物分解含硫氨基酸、硫酸酯、还原硫酸盐的产物。
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