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Natural Mountain Hemlock Roots Offer Clues to Improving Reforestation



A coastal BC mountain hemlock forest in the snow.
A coastal BC mountain hemlock forest in the snow.


Investigators
Dr. Reese Halter, Global Forest

What is the Issue?
TREE PHYSIOLOGY AND REFORESTATION

Mountain hemlock in the Pacific Northwest adjusts its growth to survive harsh environmental conditions. This research is examining several environmental aspects of root growth of mature mountain hemlock trees in British Columbia. This baseline data will offer a better understanding of how the physiology (functioning) of trees and in particular their roots can be adjusted to cope with extreme environmental conditions. Results from this research will be applied to assist artificial reforestation in the subalpine environments.

What is our goal?
UNDERSTANDING THE COMPLEXITY OF THE BELOW-GROUND WORLD IN HARSH ENVIRONMENTAL CONDITIONS.
Natural mountain hemlock roots offer clues to improving reforestation.

Where we currently stand.
This project commenced in July of 1999. Seasonal and monthly patterns of root growth of mature mountain hemlock are being examined from soil cores. Soil probes are continuously recording the soil temperature at 100 and 250 mm beneath the soil surface. The root growth patterns of mountain hemlock are exhibiting seasonal patterns similar to those reported for other evergreen subalpine tree species in both the northern and southern hemispheres. This study will continue to monitor root growth until September, 2002.


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