Spruce Roots (IMAGE)

DOE/Oak Ridge National Laboratory

Spruce Roots

Caption

Imaged by minirhizotrons, or mini underground cameras, these photos show root growth over a series of three weekly measurements in the summer of 2011 (from left to right) and also show changes in root distribution with peat depth (from top to bottom). Colleen Iversen, ORNL ecosystem ecologist, along with an international group of experts, worked to understand how these cameras could be used in wetlands research.

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Image courtesy of ORNL

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