Sixteen stands were harvested by either clearcut, shelterwood, group selection, or singletree selection methods. Three of the stands had uneven-aged structure. The other 13 were typical, matrJre, even-aged stands. Hmest intensity @roportion of basal area removed) ranged from 0.27 to 1 .@I. Hanrestcd sites were similar in slope, average diameter at breast height (DBH), and pre-harvest diamcte.r ...

The present study is the outcome of vegetation sampling conducted in managed and unmanaged forest patch under irregular shelterwood system to analyze community structure plant diversity a degraded mixed eastern Terai, Nepal. Systematic random was followed by laying out 15 quadrates sized 4m2 with uniform spacing 50 meters both blocks, respectively. This revealed that first second-year regenerat...

The Aleza Lake Shelterwood Case Study is a recent introduction of uniform shelterwood methods to interior spruce-subalpine fir forests in central British Columbia. The goal of this operational trial is to test spruce shelterwood prescriptions designed for local conditions, and to monitor and report on post-harvest silvicultural results. Potential risks and operational disadvantages are also bei...

We propose a spatial aggregation method to solve an optimal harvest scheduling problem for strip shelterwood management. Strip shelterwood management involves either a two-cut system with a preparatory-removal cut cycle, or a three-cut system with a preparatory-establishment-removal cut cycle. In this study we consider these connected sequential cuts as one decision variable, then employ conven...

After more than 50 years of research and selective breeding, blight-resistant American chestnut (Castanea dentata) trees will soon be available for planting into the species’ pre-blight range. Increased understanding of the regeneration requirements of pure American chestnut (C. dentata [Marsh.] Borkh.) will increase the success of future efforts to establish blight-resistant chestnut. We quant...

Nacrtak Motor-manual tree felling is the most labor-intensive component of all harvesting operations and frequently represents a bottleneck in wood production. The study of motor-manual tree felling was carried out in two compartments in the Namkhaneh district of Kheyrud Forest. The objects of this study were as follows: time study of tree felling operations, estimate of chainsaw productivity a...

Abstract The article provides an overview of the experience using shelterwood systems in Estonia and methodological aspects their economic assessment. methodology is tested with calculations made on management alternatives pine ( Pinus sylvestri s L.) stand Rhodococcum site type. Based Estonian forest rules results previous silvicultural studies, models were elaborated for different types harve...