specific humus matter of soil 土壤特异腐殖物质
organic matter of soil 土壤有机质
half-life of soil organic matter 土壤有机质半减期
decomposition of soil organic matter 土壤有机质的分解
organic matter of black soil 黑土有机质
organic matter balance of soil 土壤有机质平衡
organic matter content of soil 土壤有机质含量
content of soil organic matter 土壤有机质含量
balance of soil organic matter 土壤有机质平衡
But the biology of the soil is also being damaged by the loss of organic matter, which can take five to ten years to recover.
但土壤生物学也在有机物损失损失中遭到破坏，这可能需要五到十年才能恢复。
A mixture of decaying organic matter, as from leaves and manure, used to improve soil structure and provide nutrients.
堆肥腐烂有机体的混合物，如树叶或粪便，用来改善土壤结构并增加土壤养分。
A major portion of the soil organic matter is derived from the added and residual vegetative material.
加进去的和残留下来的植物物质则是土壤有机质的主要来源。
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