The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.
碳循环是一个生物地质化学循环圈，碳通过此循环在生物圈、土壤圈、地层、水圈、大气中交流。
Geosphere, hydrosphere and atmosphere are fluids in motion; their main difference is their viscosity.
地圈，水圈和大气是流体；他们的主要差别是他们的黏性。
The terrestrial transect has already become an important approach and hot spot for International Geosphere-Biosphere Programme (IGBP) in the global change study.
陆地样带研究已成为国际地圈-生物圈计划（IGBP）全球变化研究的重要手段与热点。
The terrestrial transect has already become an important approach and hot spot for International Geosphere-Biosphere Programme (IGBP) in the global change study.
陆地样带研究已成为国际地圈-生物圈计划（IGBP）全球变化研究的重要手段与热点。
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