27 Feb '18, 7pm

Rocks give their hidden moisture to trees in times of drought

Rocks give their hidden moisture to trees in times of drought

Researchers find that water in bedrock can sustain trees through dry periods, even after the soil has become parched. Below the point where trees meet the soil, below the soil itself, a little-studied layer of rock could be working to give forests a watery assist when they need it the most. Often overlooked when scientists are studying hydrologic processes, a new study reveals that the water contained in the fractures and pores of this rock could be an important part of the water cycle. "There are significant hydrologic dynamics in weathered bedrock environments, but traditionally they are not investigated because they are hard to access," says lead author of the study, Daniella Rempe, a geoscientist at UT Austin. "Our study was designed to investigate this region." The study specifically looked at the water stored in bedrock beneath the soils in mountain forest ecosystems...

Full article: https://www.treehugger.com/natural-sciences/rocks-give-th...

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