Index Catalog // ScholarsArchive@OSU

Comparison of regression and geostatistical methods to develop LAI surfaces for NPP modeling

Creator:: Berterretche, Mercedes
Abstract:: This study aims to compare different methods of obtaining maximum growing season leaf area index (LAI) maps using remote sensing data, LAI and tree cover field data in a boreal forest near Thompson, Manitoba, Canada. The comparison includes aspatial methods such as traditional regression, inverse regression and reduced major axis,...
Resource Type:: Masters Thesis

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:: that inter-annual variability and spatial coherence of forest productivity is a result of both

Disaggregative and individual-tree growth models in theory and application

Creator:: Ritchie, Martin W.
Abstract:: Disaggregative and individual-tree/distance-independent modeling methods are compared and contrasted. Differences between the two are related to differences in functional and apparent resolution and may be illustrated using aggregation theory. When considering models of different levels of resolution describing a given phenomenon, invariance with respect to the aggregation implied (symmetry) may...
Resource Type:: Dissertation

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

Using Remote Sensing and Process-based Growth Modeling to Predict Forest Productivity Across Western Oregon

Creator:: McAdam, Erick
Abstract:: Accurate measurement of forest productivity is fundamental to understand the carbon balance of forested ecosystems. Recent changes in climate highlight the importance of developing methods to measure forest productivity so that sound economic and environmental decision can be made. Efforts to measure forest productivity across the landscape using remote sensing...
Resource Type:: Masters Thesis
Full Text:: Predict Forest Productivity Across Western Oregon

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

ScholarsArchive@OSU

Comparison of regression and geostatistical methods to develop LAI surfaces for NPP modeling

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

Disaggregative and individual-tree growth models in theory and application

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

Using Remote Sensing and Process-based Growth Modeling to Predict Forest Productivity Across Western Oregon

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

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