地质大循环
- 网络geologic cycle;geological cycle;macro-geological cycle
地质大循环-
污染物的地质大循环
Geological cycle of pollutants
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地质背景系统通过其外延的岩石→土壤→药用植物向量系统，完成地质大循环与生物小循环的统一，从而制约道地药材的分布、生长发育及产量和品质。
The distribution , growth , output and quality of genuine crude drugs are restricted by geologic back-ground system ( GBS ), whose . extensional vector system " rock → soil → medicinal plants " accomplishes the unity of geo-logical grand cycle and biological pulmonary circulation .