在地球的地幔和地核之间、或者地壳中更为我们熟知的大气和海洋之间有多少碳交换也是不确定的。
Also uncertain is how much interchange there is between the carbon in the Earth's mantle and core, and the more familiar stuff in the crust, atmosphere and oceans.
碳循环是循环中，碳是交换之间的水，大气，生物圈，地圈的地球。
The carbon cycle is the cycle in which carbon is exchanged between the hydrosphere, atmosphere, biosphere, and geosphere of the Earth.
土壤、大气、植物是森林生态系统的重要碳库，植物是大气和土壤交换碳元素的重要介质。
Soil, atmosphere and plant are the important carbon pools in forest ecosystem, among which, plant is the main medium linking the carbon exchange between soil and atmosphere.
土壤、大气、植物是森林生态系统的重要碳库，植物是大气和土壤交换碳元素的重要介质。
Soil, atmosphere and plant are the important carbon pools in forest ecosystem, among which, plant is the main medium linking the carbon exchange between soil and atmosphere.
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