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This document on the 26-year assessment of the Montane Alternative Silvicultural Systems evaluates the success of planted Amabilis fir and Western Hemlock seedlings established in 1994. The core purpose of the MASS study is to measure the impact of four distinct establishment treatments, including control, fertilization, herbicide, or a combination, on tree growth over time. These treated plots are systematically mapped within the context of various silvicultural harvesting systems, including clearcut, green tree, patch cut, and shelterwood. The images act as an inventory, identifying the specific plot numbers selected for the 2019 photographic evaluation of the long-term experimental outcomes within each system.

This document on the 26-year assessment of the Montane Alternative Silvicultural Systems study focuses on natural regeneration and understory species within various managed forest environments. The MASS study is highly structured, comparing distinct silvicultural systems such as clearcut, shelterwood, and old growth by utilizing three separate replicates for each treatment type. Data collection relies on establishing Permanent Vegetation Plots, which incorporate smaller, precisely defined nested sub-plots to monitor detailed plant life, including herbs, bryophytes, and tagged conifer species like Amabilis fir and Western Hemlock. These images function as a structured index, associating specific plot and photo numbers with each experimental manipulation across the research site.