岩石风化成土作用是生态系统矿质元素的重要来源，也是全球矿质元素生物地球化学循环的重要环节。
Weathering and pedogenesis of rocks are important sources of mineral elements for ecological systems, and key processes of global biogeochemical cycling of mineral elements.
微生物在重金属元素的生物地球化学循环中扮演着重要的角色。
The microbe plays a key role in the bio-geochemical cycle of heavy metals.
生态系统元素平衡是当前全球变化生态学和生物地球化学循环的研究热点和焦点。
Ecosystem element balance has been a main focus of global change ecology and biogeochemical cycle research.
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