Precommercial thinning of tree stands… like a haircut but on a much larger scale

Red alder in SW Washington
Chris Rasor, a DNR Reforestation Coordinator, inspects a 7-year-old red alder plantation in southwest Washington that is ready for pre-commercial thinning. Pre-commercial thinning — selective removal of some trees, primarily to improve the growth rate or health of the remaining trees — is regulated under the state’s Forest Practices Rules. DNR manages more than 2 million acres of forested state trust lands under a Habitat Conservation Plan agreement with the federal government that adds additional forest practices guidelines and reporting requirements. Photo: Florian Deisenhofer/DNR.
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