Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Blake MacDonald"'
Publikováno v:
Journal of Statistical Software, Vol 64, Iss 1, Pp 1-23 (2015)
Gaussian process (GP) models are commonly used statistical metamodels for emulating expensive computer simulators. Fitting a GP model can be numerically unstable if any pair of design points in the input space are close together. Ranjan, Haynes, and
Externí odkaz:
https://doaj.org/article/81c5648fc20b40e694f9a740d9dd8a4e
Publikováno v:
Forestry. 86:475-480
In the boreal mixedwood region of Canada, management for conifer regeneration after clearcutting generally involvesmechanicalsitepreparation,plantingandaerialsprayingwithglyphosatetominimizepost-plantingcompetition from natural broadleaf regeneration
Publikováno v:
Forest Ecology and Management. 258:1225-1234
This study reports 14th-year response of a boreal mixedwood stand to different harvest intensities (uncut, 50% partial cut with and without removal of residuals after 3 years, and clearcut), spot site preparation treatments (none and scalped), and ch
Publikováno v:
Forest Ecology and Management. 255:697-706
Light, vegetation, and regeneration dynamics were monitored for 11 years as part of a partial harvesting experiment in an aspen-dominated boreal mixedwood stand in northeastern Ontario. The partial cut treatment removed 43% of the original basal area
Publikováno v:
Journal of Statistical Software; Vol 64 (2015); 1-23
Journal of Statistical Software, Vol 64, Iss 1, Pp 1-23 (2015)
Journal of Statistical Software, Vol 64, Iss 1, Pp 1-23 (2015)
Gaussian process (GP) models are commonly used statistical metamodels for emulating expensive computer simulators. Fitting a GP model can be numerically unstable if any pair of design points in the input space are close together. Ranjan, Haynes, and
Autor:
James A. Rice, G. Blake MacDonald
Publikováno v:
The Forestry Chronicle. 80:391-400
Active adaptive management has recently been advocated for efficiently reducing resource management uncertainties, but no documented applications to forestry issues exist in Ontario. This paper reports the experience of a diverse partnership applying
Publikováno v:
Forest Ecology and Management. 189:207-222
Resource managers in northern Ontario need guidelines for establishing productive species mixtures and maintaining a viable conifer component through natural regeneration on upland boreal mixedwood (BMW) sites. The hypothesis that partial cutting fav
Autor:
David J. Thompson, G. Blake MacDonald
Publikováno v:
Forest Ecology and Management. 182:213-230
Recent emphasis on ecosystem-based forest management has increased interest in promoting species mixtures to enhance stand-level diversity. However, there is little information on silvicultural approaches to regenerate mixtures of conifers and hardwo
Publikováno v:
The Forestry Chronicle. 77:893-901
In Ontario, trembling aspen (Populus tremuloides Michx.) utilization has increased over the past 20 years and this trend is expected to continue. With this increased demand, questions are being raised about stand conditions required for optimum growt
Autor:
G. Blake MacDonald, G. F. Weetman
Publikováno v:
The Forestry Chronicle. 69:64-70
A modification of functional growth analysis is proposed for investigating the responses of conifer seedlings to vegetative competition. The approach permits detailed comparisons of the absolute growth and relative growth rate with respect to competi