Space: Science & Technology / 2021 / Article / Tab 2

Review Article

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

Table 2

Water fluxes and residence times in Biosphere 2 compared to the Earth’s biosphere [32, 5355].

ReservoirEarth residence timeBiosphere 2 estimated residence timeAcceleration of cycle compared to Earth

Atmosphere9 days~4 hours50 times
Ocean/marsh3000–3200 years~1200 days (3.2 years)1000 times
Soil water30–60 days~60 daysSimilar