Super interesting: “The study reveals that Earth’s vegetation holds approximately 786 cubic kilometers of water—just 0.002% of the planet’s total freshwater supply. Additionally, the study shows that the time it takes for water to move through plants, known as transit or turnover time, is one of the fastest processes in the global water cycle. This duration ranges from as little as five days in croplands to 18 days in evergreen needleleaf forests.
The transit of water through plants is particularly fast in croplands, grasslands, and savannas. The results underscore vegetation’s dynamic role in the water cycle. In comparison to the global annual median of 8.1 days for water to transit through plants from entry to exit, the water in lakes is estimated to take 17 years, and the water in glaciers is estimated to take 1600 years.
… the transit of water through the atmosphere (about 8-10 days) and the transit time of water through soil before being taken up by plants (about 60 to 90 days)”
https://scitechdaily.com/water-moves-through-plants-faster-than-ever-imagined-scientists-discover/
https://www.nature.com/articles/s44221-024-00365-9