Index Catalog // ScholarsArchive@OSU

Optimal timber harvesting in uneven-aged forest stands : a discrete-time optimal-control approach

Creator:: Haight, Robert G.
Abstract:: The purpose of this dissertation is to formulate, analyze and numerically solve the dynamic harvesting problem for uneven-aged stands. The problem is to find the optimal numbers of trees to remove from diameter classes over a finite time horizon and is formulated as a discrete-time optimal-control problem with bounded control...
Resource Type:: Dissertation

An economic analysis of hardwood treatment in loblolly pine plantations--a whole rotation dynamic programming approach

Creator:: Valsta, Lauri
Abstract:: To accomplish an economic evaluation of vegetation management in loblolly pine (Pinus taeda L.) at regeneration and a subsequent release time, two existing growth models were linked together in a dynamic programming analysis. The first model (Burkhart and Sprinz, 1984) provides a projection of stands regenerated with varying hardwood components...
Resource Type:: Masters Thesis

Silvicultural and financial analysis of three case studies in the Oregon Coast Range

Creator:: Rudd, Christopher Channing
Abstract:: Three data sets were examined to determine the costs with and without constrained forest management practices. Two adjacent sites in the Coast Range of Oregon were studied. One of the units was broadcast burned while the adjacent site was left unburned. The stands were projected for growth and yield in...
Resource Type:: Masters Thesis

An econometric analysis of timber demand and supply relationships on the Siuslaw National Forest

Creator:: Shih, Kung
Abstract:: To abstract the fundamental market structures of stumpage sold from the Siuslaw National Forest, a three-equation structural model with different assumptions on private cut was empirically derived. Under the private cut price-fixed assumption, the structural model can be simplified as a single-equation model with stumpage price as dependent variable and...
Resource Type:: Masters Thesis

Stand level silvicultural optimization utilizing a late-seral index constraint

Creator:: Semeliss, Wade Alan
Abstract:: A dynamic programming algorithm (MS PATH) was used to develop a stand level optimization model, FPS Optimizer. The model incorporates a late-seral constraint on the profit maximizing objective function utilizing a four-descriptor structural index as a proxy. This index, the 'Old-Growth Index', rates the late-seral structural quality of a given...
Resource Type:: Masters Thesis
Full Text:: optimization at the stand level, and evaluate the economic dynamics of imposing a late-seral structure

Economic analysis of integrating spatial concerns into harvest scheduling

Creator:: Yoshimoto, Atsushi
Abstract:: An analytical algorithm to formulate a sparser set of adjacency constraints than the conventional algorithm is proposed. Utilizing matrix algebra applied to an adjacency matrix, constraints are systematically and efficiently derived by the proposed algorithm. The proposed algorithm is proved to provide a true set of adjacency constraints in the...
Resource Type:: Dissertation

Use of duality values for multiple-use stand and forest planning

Creator:: Paredes-Veloso, Gonzalo L.
Abstract:: An analysis of the economics of multiple use forest planning is presented. At the forest level itself it is demonstrated the use of duality information provided by linear programming to price nonmarket commodities allocations and to establish an accounting system in multiple use forest management. The use of post-optimal activity...
Resource Type:: Dissertation

Measuring costs of sequestering carbon in forest stands with different management regimes in western Oregon

Creator:: Zyrina, Olga A.
Abstract:: This project was a part of larger work that compared major factors controlling patterns of carbon dynamics in two regions of the globe, the Pacific Northwest, USA and northwestern Russia. It was funded through the NASA foundation (grant # NAG5- 6242). Human economic activity is causing the release of pollutants...
Resource Type:: Masters Thesis
Full Text:: economic activity is causing the release of pollutants such as carbon dioxide. The increased concentration

A multivariate control solution to the mixed species/diameter class thinning and final rotation problem

Creator:: Cousar, Paul K.
Abstract:: The algorithm RLS-PLUS was developed to yield solutions to the multivariate control problem of diameter and species optimization for mixed conifer and hardwood stands. The problem is specified with twenty-five state variables consisting of five species groups with four merchantable diameter classes and one unmerchantable class. This gives twenty diameter...
Resource Type:: Masters Thesis

Model III : a sequential approach to joint optimization of the stand treatment and forest level harvest scheduling problem

Creator:: Barber, Richard L.
Abstract:: Harvest scheduling and stand level optimization have generally been regarded as separable problems. Some studies have attempted to jointly optimize a wide range of stand treatments and a forest wide harvest schedule using combinations of mathematical programming techniques. The mathematical programming forest level techniques presume perfect information on production, costs...
Resource Type:: Dissertation

ScholarsArchive@OSU

Optimal timber harvesting in uneven-aged forest stands : a discrete-time optimal-control approach

An economic analysis of hardwood treatment in loblolly pine plantations--a whole rotation dynamic programming approach

Silvicultural and financial analysis of three case studies in the Oregon Coast Range

An econometric analysis of timber demand and supply relationships on the Siuslaw National Forest

Stand level silvicultural optimization utilizing a late-seral index constraint

Economic analysis of integrating spatial concerns into harvest scheduling

Use of duality values for multiple-use stand and forest planning

Measuring costs of sequestering carbon in forest stands with different management regimes in western Oregon

A multivariate control solution to the mixed species/diameter class thinning and final rotation problem

Model III : a sequential approach to joint optimization of the stand treatment and forest level harvest scheduling problem

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