Space: Science & Technology / 2021 / Article / Tab 1

Review Article

Biosphere 2’s Lessons about Living on Earth and in Space

Table 1

Earth’s biosphere carbon ratios of biomass, soil, and atmosphere compared to Biosphere 2. This results in dramatically different carbon cycling and atmospheric residence [10, 49], data from [5052].

EarthBiosphere 2

Ratio of biomass C : atmospheric C1 : 1 (at 350 ppm CO2)100 : 1 (at 1500 ppm CO2)
Ratio of soil C : atmospheric C2 : 15000 : 1
Estimated carbon cycling time (residence in atmosphere)3 years1-4 days