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土壤环境背景值
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土壤环境背景值
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土壤环境背景值
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background value of soil environment
土壤环境背景值
自然条件下的一定时间和空间范围内,未受到或少受到人类活动影响和外源物质干扰的土壤固有的化学组成、数量和结构的特征参数。不是一个固定值,而是范围值。
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