土壤质量演变是自然过程与人类活动共同作用的结果。
The changes of soil quality are the results of both natural processes and human activities.
本文综述了土壤质量的内涵、土壤质量研究的重要性与重点、土壤质量演变的规律及土壤退化的途径。
This paper reviewed the intension of soil quality, discussed the importance of studying soil quality, and analyzed development laws of soil quality and the ways of soil degradation.
土壤质量演变的自然过程是漫长的和相对稳定的，而人类活动对土壤质量的影响则是更为强烈的因素。
Human activities are the intensive factors in soil quality, while, the natural process is relatively long and steady.
通过本文各指标的研究，进一步认识了汾渭平原全新世土壤的类型、成因与质量演变。
The soil type, cause of soil formation and soil quality changes of Holocene loess-soil sequence have been clearly distinguished.
在土壤质量的演变过程中，土壤微生物具有相对较高的转化能力。
In the process of soil quality change, soil microbe is a relatively better maker for the change.
在土壤质量的演变过程中，土壤微生物具有相对较高的转化能力。
In the process of soil quality change, soil microbe is a relatively better maker for the change.
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