Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Retrospective Theses and Dissertations

Environmental Sciences

Forest economics

Articles 1 - 11 of 11

Full-Text Articles in Life Sciences

A Biophysical And Socio-Economic Examination Of The Use Of Shelterbelts For Swine Odor Mitigation , John Charles Tyndall Jan 2003

A Biophysical And Socio-Economic Examination Of The Use Of Shelterbelts For Swine Odor Mitigation , John Charles Tyndall

Retrospective Theses and Dissertations

The use of shelterbelts (trees and shrubs) arranged in strategic designs near and within swine facilities potentially can play a significant incremental role in bio-physically mitigating odor in a socio-economically responsible way thereby reducing social conflict from odor nuisance. Shelterbelts of modest heights (i.e. 20--30 ft) may be ideal for plume interception, disruption, and dilution. Based on available evidence, there are five primary ways that shelterbelts can mitigate livestock odors: (1) Physical interception and capture of odor laden dust by trees/shrubs; (2) Dilution of gas concentrations of odor into the lower atmosphere; (3) Ground deposition of odor laden ...


Socio-Economic Analysis Of An Agroforestry System With The Winnebago Tribe Of Nebraska , Marcella Brian Szymanski Jan 1997

Socio-Economic Analysis Of An Agroforestry System With The Winnebago Tribe Of Nebraska , Marcella Brian Szymanski

Retrospective Theses and Dissertations

The results from an economic analysis of an agroforestry system and a Participatory Rural Appraisal (PRA) for community land-use decision-making with the Winnebago Tribe of Nebraska are presented as a series of three papers. The dissertation will emphasize different parts of the study with an overall focus on the community development aspects of the agroforestry system. Chapter 1 emphasizes the use of PRA to obtain an emic or "insiders" perspective on the land-use needs of the Winnebago Tribe and community. As a rapid, low-cost method of data collection, PRA techniques have been used as a means of incorporating indigenous knowledge ...


Export Performance And Export Demand Of Indonesian Forest Products , Komara Djaja Jan 1992

Export Performance And Export Demand Of Indonesian Forest Products , Komara Djaja

Retrospective Theses and Dissertations

Indonesian forest product exports have been growing significantly from a yearly average of U.S. 0.4 billion in 1970/74 to U.S. \2.4 billion in 1985/89. Using the constant market share (CMS) model, the results indicate that the impressive growth of Indonesian forest product exports over the period 1970/74-1985/89 attributed to the world trade effect and to the competitiveness effect was 50 and 82 percent, respectively. The commodity composition effect and market distribution effect were somewhat unfavorable; it was -29 and 1 percent, respectively. The CMS results suggest that, to obtain more benefit from ...


Supply And Demand For Wood As A Source Of Energy In Zambia: An Econometric Analysis , Christopher Mupimpila Jan 1992

Supply And Demand For Wood As A Source Of Energy In Zambia: An Econometric Analysis , Christopher Mupimpila

Retrospective Theses and Dissertations

The significance of biomass energy in developing countries has increasingly attracted a great deal of attention. The basis of the interest in biomass energy is often considered to be the 1973 oil crisis, which, among other things, focused attention on renewable sources of energy. As a result of the crisis, it became apparent that traditional biomass fuels--firewood, charcoal, crop residuals, and cow dung--were the primary cooking and heating fuels for the majority of the population in developing countries, especially the rural and urban poor. The situation remains the same today, biomass fuels are the primary domestic fuels for the majority ...


Business Planning For Marketing Low-Quality Hardwoods , Curtis Lawrence Krambeer Jan 1992

Business Planning For Marketing Low-Quality Hardwoods , Curtis Lawrence Krambeer

Retrospective Theses and Dissertations

Increased utilization of low-quality hardwoods would aid in the management options of hardwood stands. With market development, materials of poor quality could be moved to productive uses while allowing higher quality stock more growing room. A description of a concentration and marketing center is offered that is designed to provide a simple selling opportunity for land owners and timber improvement contractors;This study develops a financial spreadsheet template to aid in feasibility analysis and business planning for potential marketing center scenarios. The spreadsheet and its accompanying documentation identify input data requirements. By identifying input needs for the spreadsheet, this study ...


Characteristics, Motivation, And Management Practices Of Nonindustrial Private Forest Landowners In Iowa , Jeffrey A. Regula Jan 1991

Characteristics, Motivation, And Management Practices Of Nonindustrial Private Forest Landowners In Iowa , Jeffrey A. Regula

Retrospective Theses and Dissertations

Two forestland owner surveys were conducted during 1985 and 1986 to examine the characteristics, attitudes, and motivations of nonindustrial private forest landowners in Iowa. The first part of this paper examines the effect of response order bias in telephone surveys. Unlike previous studies that found little effect from response order bias in other types of surveys, response order bias was shown to have a significant influence on response patterns. In the second part, a measure for assessing attitudes toward land stewardship is proposed. A model of land stewardship is also proposed and tested using factor analysis. The factor analysis of ...


An Economic Analysis Of Agroforestry Farming Systems In Zambia: Application Of Risk Programming And Risk-Free Modelling Techniques , Leyeka Charles Lufumpa Jan 1991

An Economic Analysis Of Agroforestry Farming Systems In Zambia: Application Of Risk Programming And Risk-Free Modelling Techniques , Leyeka Charles Lufumpa

Retrospective Theses and Dissertations

Declining soil fertility is one of the many problems facing Zambian agriculture today. The increase in permanent cultivation practices, combined with reduced forest fallow have contributed to the decline in soil fertility. In response to this state of affairs, farmers continue to increase the use of chemical fertilizers as a way of maintaining soil productivity;However, although production and productivity in the agricultural sector has increased over the years, small-scale farmers continue to register low productivity levels. Increases in agricultural production in the small-scale farm sector are mainly achieved by increasing land area under cultivation. For Zambia this means that ...


Iowa's Timber-Based Economy: An Economic Analysis , Stephen Hiama Kolison Jr. Jan 1990

Iowa's Timber-Based Economy: An Economic Analysis , Stephen Hiama Kolison Jr.

Retrospective Theses and Dissertations

The decade of the '80s brought economic difficulties to the state of Iowa. Demand for its traditional products such as corn, soybean, and farm machinery fell sharply. At the moment, there appear to be considerable improvements in the economy relative to previous years in the '80s. Nevertheless, concerns still remain that the economic conditions for the '80s could be repeated. These concerns have generated discussions regarding ways to prepare the state against similar economic recession in its traditional sectors. Prominent among these discussions is the idea of diversifying and expanding the state's economy beyond its traditional products;It was ...


Measuring Congestion Effects In A High-Density Recreational Site , Kwan Choi Jan 1988

Measuring Congestion Effects In A High-Density Recreational Site , Kwan Choi

Retrospective Theses and Dissertations

Congestion is a type of externality which causes marginal social cost to differ from marginal social benefit. To achive Pareto efficient resource allocation, the congestion effect should be measured and accounted for in the decision making procedure;Using the direct interview method, the effect of congestion in a high-density forest-based recreational site in Korea was measured in terms of the change in individual willingness to pay for varying levels of congestion and social demographic characteristics. Data were collected using a questionnaire from a random sample of about 221 recreationists during Fall, 1987;Video tape segments illustrating five different levels of ...


A Linear Programming Model Applied To The Supply Of Primary Hardwood Products In The United States 1990 To 2030, Francis Nwonwu Jan 1983

A Linear Programming Model Applied To The Supply Of Primary Hardwood Products In The United States 1990 To 2030, Francis Nwonwu

Retrospective Theses and Dissertations

A cost minimizing linear programming model was developed to determine the minimum cost of supplying hardwood lumber, veneer and plywood, and particleboard in each year of the period 1990 to 2030;The continental United States was divided into nine supply and three demand regions. Production, export, import and transportation activities were defined for demand regions. The total cost of producing, transporting, and importing the products was minimized subject to regional and national demand (consumption, export, and import) and resource (land, labor, and capital) constraints;The minimum costs (in 1972 dollars) of supplying the products in the years 1990, 2010 and ...


Economic Costs Of Wilderness Designation On The Willamette National Forest , Gene Edward Campbell Jan 1979

Economic Costs Of Wilderness Designation On The Willamette National Forest , Gene Edward Campbell

Retrospective Theses and Dissertations

No abstract provided.