Forest ecosystem management, based partly on a greater understanding of natural disturbance regimes, has many variations but is generally considered the most promising approach to accommodating biodiversity concerns in managed forested regions. Using the Lake Duparquet Forest in the southeastern Canadian boreal forest as an example, we demonstrate an approach that attempts to integrate forest a...

in order to study the qualitative, quantitative characteristics of a pure common populus alba stand in polkalleh & a mixed stand of populus alba & populus nigra in karchegan, two 30-year-old stands were selected with a plantation interval ( spacing) of 2.5 × 1.5 m in each of which 30 pcs of 2 are samples were randomly selected. in each sample pc all the trees diameters were measured using a dia...

Abstract We present an optimal control model to simultaneously determine the planting density, thinning schedules, harvest age, and revenues of even-aged longleaf pine ( Pinus palustris Mill) stand, iconic species in Southeastern United States. assume that forest stand is managed for timber production carbon sequestration under different site indexes—a measurement potential productivity. Our si...

INTRODUCTION Silviculture for the production of high-quality timber in southern bottomland hardwood forests involves the application of environmentally sound practices in order to enhance the growth and quality of both individual trees and stands. To accomplish this purpose, silvicultural practices are typically used to regulate stand density, species composition, and stem quality to promote th...

The quantification of biomass carbon pools is important for understanding carbon cycling in forest ecosystems. This study was designed to reveal the effects of stand age on biomass partitioning and carbon storage of Chinese fir plantation stands in Dabie Mountains of Anhui, East China. A total of six even-aged Chinese fir plantation stands along an age-sequence from 10 to 50 years were selected...

Tree diameter at breast height (dbh) and height are the most important variables used in forest inventory and management as well as forest carbon-stock estimation. In order to identify the key stand variables that influence the tree height-dbh relationship and to develop and validate a suit of models for predicting tree height, data from 5961 tree samples aged from 6 years to 53 years and colle...

-A model was developed that predicts the probability of survival for individual shortleaf pine (Pinus echinatu Mill.) trees growing in even-aged natural stands. Data for model development were obtained from the first two measurements of permanently established plots located in natural ly occurring short leaf pine forests on the Ouachita and Ozark National Forests in western Arkansas and eastern...

Fire modifies vegetation dynamics in terrestrial ecosystems. Abundant literature has studied the post-fire effects with satellite sensors; however, relatively fewer studies have used unmanned aerial vehicles (UAVs) to assess of greenness prior and immediately following prescribed fires. Using multispectral sensors mounted on UAVs, we documented results normalized difference index (NDVI) as a pr...