土壤背景值又称土壤本底值,它代表一定环境单元中的一个统计量的特征值。背景值是指各区域正常地理条件和地球化学条件下元素在各类自然体(岩石、风化产物、土壤、沉积物、天然水、近地大气等)中的正常含量。在环境科学中,土壤背景值是指在未受或少受人类活动影响下,尚未受或少受污染和破坏的土壤中元素的含量。
... 土壤环境保护 + soil environmental protection 植物修复 + phytoremediation 土壤背景值 + soil background value ...
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简要介绍了中国土壤背景值图集。
The atlas of China soil background values was briefly introduced in this paper.
建议在土壤背景值调查中试用分析质量控制。
It is suggested that analytical quality control technique should be used in soil background survey.
土壤中微量元素的含量与世界土壤背景值相似。
Trace elements in soil of Tumotezuoqi were similar to the background levels of elemental composition of soil in the world.
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