Ecology: Biogeochemical cycles Flashcards Preview

BIO FINAL > Ecology: Biogeochemical cycles > Flashcards

Flashcards in Ecology: Biogeochemical cycles Deck (3)
Loading flashcards...

Biogeochemical cycles

Global cycles of chemical interactions among environmental compartments: ex. Biosphere (carbon cycle, water cycle, oxygen cycle etc.)


CO2 added to atmosphere from different sources

geologic inputs (volcanoes, ocean ridges), biological inputs (respiration), Human activities (deforestation fossil fuel burning)


CO2 removed from atmosphere

Geologic removal (chemical weathering of rocks; takes a long time). Biological removal (photosynthesis)