Tree roots are drawn towards moist soil, a phenomenon known as hydrotropism. Near surface watering therefore causes roots to stay close to the surface instead of growing deep into the ground. Biomechanical engineers from ...
Earth Sciences
Jul 20, 2021
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7
Permafrost underlies nearly 85 percent of Alaska and nearly a quarter of the landmass in the northern hemisphere. This perennially frozen soil contains twice as much carbon as is found in the Earth's atmosphere. Since the ...
Earth Sciences
Feb 1, 2019
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188
A largely unknown terrain begins not so far below the surface of the forest floor. While the processes in the top 30 centimetres of the soil are well known, deeper areas of the soil are the focus of a research group led by ...
Earth Sciences
Oct 16, 2018
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6
