The main focus was on developing an algorithm and supporting computer programs for use by extension personel to counsel farm managers on problems of enterprise choice. Investigation was initiated from the complete certainty viewpoint of linear programming. Upon introducing uncertainty, ramifications of changing expected income, variance and the correlation coefficient...
Agricultural economists have devoted considerable attention to
the financial stress situation of agricultural producers. Many
studies have been conducted in various regions of the U.S. in an
attempt to better understand the causes of the problem. The costs
associated with farm financial stress imply corresponding benefits to
be realized by...
The distribution of agricultural production for
continuous consumption requires the capacity to maintain
inventories which are large relative to the rate of
utilization. As a result, the demand for inventories is a
critical element in the pricing of agricultural
commodities. A component of inventory demand, referred to
here as reservation...
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...
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...
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...
Abstract Watershed-scale fate/transport modeling of contaminants is a tool that scientists and land managers can use to assess pesticide contamination to stream systems. The Catchment Modeling Framework (CMF) is a catchment-scale fate/transport modeling tool. It was developed to help scientists and land managers assess the effects of possible land-use decisions...
The Production Switching Heuristic (PSH) developed by
Mellichamp and Love (1978) has been suggested as a more
realistic, practical and intuitively appealing approach to
aggregate production planning (APP). In this research, PSH
has been modified to present a more sophisticated open grid
search procedure for solving the APP problem. The...
This research addresses fleet-sizing for reusable containers that are used for
protection, transportation, and storage of parts between a component plant and
assembly plant. These reusable containers are often expensive and occupy a
large amount of storage space when empty and full. Having a large container
fleet comes with higher...
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...