Index Catalog // ScholarsArchive@OSU

An efficient specification and solution method of the even-aged rotation and thinning problem

Creator:: Paredes-Veloso, Gonzalo L.
Abstract:: The problem of determining an optimal sequence of decisions in even-aged stand management is analyzed and solved with an alternative to the traditional dynamic programming network. The new method is derived independently from two different approaches to the problem: Network optimization and generalized LaGrange multipliers. Both derivations are presented. It...
Resource Type:: Masters Thesis

A stochastic analysis of erosion and economic impacts associated with timber harvests and forest roads

Creator:: McNutt, James Allen
Abstract:: A complex and sometimes serious problem facing modern day forest managers is that of estimating and analyzing potential on-site impacts which result from forest activities. A major type of adverse impact is man-Initiated forest erosion. This consequence can be substantially magnified when forest harvest and road activities are implemented in...
Resource Type:: Dissertation

A comparison of prediction models for cover type transitions and their effects on harvest schedules in coastal Oregon

Creator:: Eng, Helge
Abstract:: There is considerable uncertainty associated with stand establishment in coastal Oregon. Several species can gain control of the site depending on stand conditions as well as management practices. In this study, three cover type transition models were developed using data from the Siuslaw National Forest to predict stand establishment patterns...
Resource Type:: Dissertation

Optimizing the primary forest products supply chain : a multi-objective heuristic approach

Creator:: Hamann, Jeff D.
Abstract:: This thesis is a collection of four submitted manuscripts that present methods to assist forest ecosystem service managers wanting to develop operational sampling, monitoring, and production plans for a set of specific quantifiable ecosystem services, which are formulated as a series of general multi-objective optimization problems. The problems are solved...
Resource Type:: Dissertation
Full Text:: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3. AN EXAMINATION OF DESIGN-BASED AND MODEL-BASED SAMPLING FOR PRIMARY FOREST PRODUCTS SUPPLY

The potential contribution of a diameter class matrix model to predict growth of mixed tropical forests

Creator:: Ebaa-Atyi, Richard
Abstract:: The study presents two main parts: first, a review of tropical silviculture and forest management systems and, second, the investigation of a growth and yield model which has some potential for application in the tropical region. The presentation of tropical silviculture includes: (1) an overview of the biological characteristics of...
Resource Type:: Masters Thesis

Estimating large woody debris recruitment from adjacent riparian areas

Creator:: Minor, Kathleen P.
Abstract:: Large woody debris recruitment to streams from adjacent riparian forests influences stream channel morphology, sediment routing, and fish habitat. A mathematical model was developed to 1) determine whether the trees in a stand adjacent to a stream, upon falling, would provide large woody debris of a specified size to the...
Resource Type:: Capstone Project

A coupled hydrologic-geomorphic model for evaluating effects of vegetation change on watersheds

Creator:: Duan, Jinfan
Abstract:: This work describes the modeling framework and initial results for CLAWS (Coupled Landscape And Water System), a physically-based, spatially-distributed hydrologicgeomorphic model that has been coupled with a vegetation dynamics simulation. Spatial variability of topography, soil, vegetation, and climate drive a hydrology module that calculates the water budget at given time...
Resource Type:: Dissertation

Inter-annual variability of net primary productivity across multiple spatial scales in the western Oregon Cascades : methods of estimation and examination of spatial coherence

Creator:: Woolley, Travis J.
Abstract:: Quantifying and modeling processes involved in the global carbon cycle is important to evaluate the temporal and spatial variability of these processes and understand the effect of this variability on future response to changing climate and land use patterns. Biomass accumulation and Net Primary Productivity (NPP) are large components of...
Resource Type:: Masters Thesis
Full Text:: of Master of Science in Forest Science presented on December 5. 2005. Title: Inter-annual Variability

An evaluation of an inventory projection system : TRIM model predictions vs. forest inventory field measurements in North Carolina

Creator:: Mills, John R.
Abstract:: As part of the effort to evaluate TRIM (Timber Resource Inventory Model) for the next RPA National Assessment, a study was conducted using natural pine stands in North Carolina. TRIM has been used for regional timber supply studies in both the Pacific Northwest and the South (Southern Timber Supply Study)....
Resource Type:: Masters Thesis

Strategies for sampling and estimation of aboveground tree biomass

Creator:: Poudel, Krishna Prasad
Abstract:: The issue of global climate change and an increasing interest in the reduction of fossil fuel carbon dioxide emissions by using forest biomass for energy production has increased the importance of quantifying forest biomass in recent years. The official U.S. forest carbon reporting is based on the forest biomass estimates...
Resource Type:: Dissertation
Full Text:: Eskelson et al. (2011) and to model percent 6 canopy cover in a conifer forest by Korhonen et

ScholarsArchive@OSU

An efficient specification and solution method of the even-aged rotation and thinning problem

A stochastic analysis of erosion and economic impacts associated with timber harvests and forest roads

A comparison of prediction models for cover type transitions and their effects on harvest schedules in coastal Oregon

Optimizing the primary forest products supply chain : a multi-objective heuristic approach

The potential contribution of a diameter class matrix model to predict growth of mixed tropical forests

Estimating large woody debris recruitment from adjacent riparian areas

A coupled hydrologic-geomorphic model for evaluating effects of vegetation change on watersheds

Inter-annual variability of net primary productivity across multiple spatial scales in the western Oregon Cascades : methods of estimation and examination of spatial coherence

An evaluation of an inventory projection system : TRIM model predictions vs. forest inventory field measurements in North Carolina

Strategies for sampling and estimation of aboveground tree biomass

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