炭たん素そ循じゅん環かん

noun

carbon cycle

Scientific term referring to the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.

• 炭たん素そ循じゅん環かんは地ち球きゅうの気き候こうに大おおきな影えい響きょうを与あたえる。

  The carbon cycle has a major impact on the Earth's climate.

• 森しん林りんは炭たん素そ循じゅん環かんにおいて重じゅう要ような役やく割わりを果はたしている。

  Forests play an important role in the carbon cycle.