Showing 31 - 40 of 41
National forest inventory programs are tasked to produce timely and accurate estimates for a wide range of forest resource variables for a variety of users and applications. Time, cost, and precision constraints cause these programs to seek technological innovations that contribute to...
Persistent link: https://www.econbiz.de/10009429540
In many applications of line intersect sampling, transects consist of multiple, connected segments in a prescribed configuration. The relationship between the transect configuration and the selection probability of a population element is illustrated and a consistent sampling protocol,...
Persistent link: https://www.econbiz.de/10009429541
A diameter increment model is developed and evaluated for individual trees of ponderosa pine throughout the species range in the United States using a multilevel linear mixed model. Stochastic variability is broken down among period, locale, plot, tree and within-tree components. Covariates...
Persistent link: https://www.econbiz.de/10009429547
Bayesian belief networks (BBNs) are useful tools for modeling ecological predictions and aiding resource-management decision-making. We provide practical guidelines for developing, testing, and revising BBNs. Primary steps in this process include creating influence diagrams of the hypothesized...
Persistent link: https://www.econbiz.de/10009429552
Using a landscape simulation model, we examined ecological and economic implications of forest policies designed to emulate the historical fire regime across the 2 x 10⁶ ha Oregon Coast Range. Simulated policies included two variants of the current policy and three policies reflecting aspects...
Persistent link: https://www.econbiz.de/10009429564
Decision support systems (DSS), also known as forest resource information systems, focus on providing forest managers information to make better decisions. DSS in forestry organizations have evolved from the integration of geographic information systems and database management systems with...
Persistent link: https://www.econbiz.de/10009429570
The Global Forest Products Model was used to project international forest sector developments, conditional on the latest RPA Timber Assessment of future domestic changes in the United States. While the United States, Japan, and Europe were predicted to remain major importers of forest products...
Persistent link: https://www.econbiz.de/10009429571
The extreme cost of fighting wildland fires has brought fire suppression expenditures to the forefront of budgetary and policy debate in the United States. Inasmuch as large fires are responsible for the bulk of fire suppression expenditures, understanding fire characteristics that influence...
Persistent link: https://www.econbiz.de/10009429575
Nanotechnology has applications across most economic sectors and allows the development of new enabling science with broad commercial potential. Cellulose and lignocellulose have great potential as nanomaterials because they are abundant, renewable, have a nanofibrillar structure, can be made...
Persistent link: https://www.econbiz.de/10009429576
Persistent link: https://www.econbiz.de/10005403234