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DOI: | 10.4141/P00-030 |
Web URL(s): | http://pubs.aic.ca/doi/pdfplus/10.4141/P00-030 Last checked: 10/01/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | McKenney, D. W.;
Hutchinson, M. F.;
Kesteven, J. L.;
Venier, L. A. |
Author Affiliation: | McKenney and Venier: Landscape Analysis and Applications Section, Canadian Forest Service, Great Lakes Forestry Centre, Sault Ste. Marie, Ontario, Canada; Hutchinson and Kesteven: Centre for Resource and Environmental Studies; The Australian National University; Canberra, Australia |
Title: | Canada's plant hardiness zones revisited using modern climate interpolation techniques |
Source: | Canadian Journal of Plant Science. Vol. 81, No. 1, January 2001, p. 129-143. |
Publishing Information: | Ottawa: Agricultural Institute of Canada |
# of Pages: | 15 |
Keywords: | TIC Keywords: Resistance; Regional variation; Climatic factors; Environmental factors; Geographical distribution; Mapping; Weather monitoring
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Geographic Terms: | Canada |
Abstract/Contents: | "Canada's plant hardiness zones are well known to Canadian gardeners. The original hardiness indices and zones were developed in the early 1960's through regression models of several climatic parameters and plant survival data from numerous locations across the country. Since that time Canada's climate has changed and climate interpolation techniques have improved. We have remapped Canada's plant hardiness zones using data from the period of the original analysis (roughly 1930-1960) and for the 1961-1990 period using thin plate spine interpolation methods. Trials of bivariate and tri-variate splines were undertaken and evaluated using withheld data. A trivariate function of position (longitude and latitude) and elevation performed best. Standard errors of the surfaces were about 0.5°C or less for temperature variables and 5 to 28% for rainfall depending on the month (winter months being the worst). The creation of a new digital elevation model (a regular grid of position and elevation) of Canada enabled the mapping of each variable required for the plant hardiness formula at spatial resolutions of 1 km to 10 km. These models better capture the spatial varation in climate than previously possible and hence should provide a stronger basis for application such as the determination of plant hardiness zones. Comparisons of the zones betweeen the two time periods are consistent with what is known about climate in Canada. The hardiness index has declined or has stayed stable in eastern Canada and has increased in western areas. The results also suggest that more station data are required in western Canada to better capture the inherent spatial variability of climate, particularly precipitation, in mountainous terrain." |
Language: | English |
References: | 43 |
Note: | Abstract also appears in French Figures Graphs Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): McKenney, D. W., M. F. Hutchinson, J. L. Kesteven, and L. A. Venier. 2001. Canada's plant hardiness zones revisited using modern climate interpolation techniques. Can. J. Plant Sci. 81(1):p. 129-143. |
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| DOI: 10.4141/P00-030 |
| Web URL(s): http://pubs.aic.ca/doi/pdfplus/10.4141/P00-030 Last checked: 10/01/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: SB 1 .C3 |
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