Zobrazeno 1 - 10
of 27
pro vyhledávání: '"David R. Betters"'
Autor:
David R. Betters, William Daigneault
Publikováno v:
Western Journal of Applied Forestry. 15:70-74
Both artificial and living snowfences are used to protect roads from blowing and drifting snow. This article evaluates and compares the economic performance of three snowfence designs--the Wyoming and double-row slatted artificial snowfences and a th
Autor:
David R. Betters, Joshua G. Eagle
Publikováno v:
Ecological Economics. 26:165-171
Economic theory holds that the level of punishment set for a violation of a law reflects, or should reflect, the marginal social damage of the violation. This paper considers the implications of this theory with respect to the Endangered Species Act
Autor:
David R. Betters, Christopher A. Thoms
Publikováno v:
Forest Ecology and Management. 103:149-157
There is a worldwide concern for managing natural resources in ways that are economically viable and ecologically and socially responsible. Ecosystem management is a recent approach that has been conceptualized to address these concerns. Mexico is st
Autor:
David R. Betters, John M. Silbaugh
Publikováno v:
Journal of Sustainable Forestry. 5:235-248
With the new emphasis in land management agencies (particularly the USDA Forest Service) on ecosystem management, new attention is being paid to measurements of biological diversity (biodiversity). Forest managers faced with incorporating the mainten
Autor:
David R. Betters, William R. Linville
Publikováno v:
Journal of Sustainable Agriculture. 9:49-66
This study examines the economic feasibility of short-rotation intensive culture tree plantations as an alternative crop for farmers and ranchers in eastern Colorado. Numerous wood biomass production scenarios were evaluated using standard economic c
Publikováno v:
Journal of Environmental Management. 47:93-99
The problem of minimizing the investment in after-cut residual growing stock for an uneven-aged stand subject to a target basal area is formulated and solved as a non-linear optimization model using the Lagrangian approach. The model leads to the det
Autor:
David R. Betters, John M. Silbaugh
Publikováno v:
Environmental Reviews. 3:277-285
Forest managers faced with incorporating the maintenance of biodiversity into their analyses, plans, and decisions need reliable, quantitative measures of biodiversity. This paper reviews and critiques quantitative approaches that have been developed
Publikováno v:
The Forestry Chronicle. 71:106-119
Introduction The steadily increasing demand for long-fiber pulps and the successful substitution of these products with pulp mixes has led in the last few years to an increased international interest in indusnial technologies for manufacturing these
Publikováno v:
International Tree Crops Journal. 8:83-93
SUMMARY Establishment costs of short rotation eucalypt plantations can be reduced by agroforestry systems involving the use of beans (Phaseolus vulgaris) intercropped with Eucalyptus grandis at the time of establishment. Tree growth and survival are
Autor:
David R. Betters, Tani E. Converse
Publikováno v:
Biomass and Bioenergy. 8:251-254
The objective of this research is to develop equations to predict yields for short rotation black locust (Robinia pseudoacacia) tree plantations. The data set is from experimental black locust plantation sites located throughout the State of Kansas.