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This document summarizes the long-term results of pre-commercial thinning experiments on lodgepole pine in the British Columbia interior. Researchers have tracked eleven distinct trials across various sites and ages to determine how reducing stand density influences future growth and yield. The study highlights that while thinning significantly increases individual-tree diameter and volume, it also results in lower net stand basal area and total volume compared to unthinned control plots. This document serves as a data source for calibrating growth models and informs forest managers on how different spacing intensities affect tree development and potential merchantable yields.

This extension note presents findings from investigations into how the mountain pine beetle infestation and subsequent salvage harvesting near streams impact small stream and riparian zone health in British Columbia's Sub-Boreal Spruce zone. The research focused on understanding the riparian stand structure in these affected areas and assessing the influence of both the beetle infestation and harvesting on riparian zones, particularly shade levels and overall stream function. Through basal area studies and a stream health evaluation protocol, the authors aimed to provide short-term answers to guide forest management practices in regions heavily affected by the mountain pine beetle.