本文从地球化学环境与人类生存关系出发，依据区域化探水系沉积物资料编制环境地球化学图。
Proceeded from the relationship between geochemical environment and mankind existence, and based on the data of regional stream sediment survey, the geochemical environment map is drown up.
环境地球化学基线提供了对比及判别人类或者自然事件造成的环境扰动的标准，其研究具有重要意义和迫切需求。
It is of great significance to study the environmental geochemical baseline which supplies a standard to compare and distinguish the environmental disturbance caused by human events or natural events.
汞的微生物甲基化作用是汞生物地球化学循环过程中重要环节之一，与人类健康密切相关。
Mercury methylation by microbes plays a key role in mercury biogeochemical cycle, and closely related with public health.
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