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- Publisher
- Wiley
- Copyright
- 2001 IAVS ‐ the International Association of Vegetation Science
- ISSN
- 1100-9233
- eISSN
- 1654-1103
- DOI
- 10.2307/3236861
- Publisher site
- See Article on Publisher Site
Abstract
Abstract. The pattern at an ecotone may indicate the processes that created that ecotone. Such patterns may in turn affect the responses of ecotones to environmental change. The resource averaging hypothesis suggests a process for the development of tree lines that should produce patterns that are modifications of patterns in soil resources. A computer simulation model that embodies the resource averaging hypothesis is used to generate tree‐line patterns. Different spatial patterns in the variation of soil resources are represented in the model. The patterns of tree line computed by the simulation closely correspond to the patterns of soil resources that were input. These patterns are compared to patterns recorded in the field and by aerial photography. For the patterns of soil resources observed at some alpine tree lines, the model cannot produce the kinds of patterns of vegetation observed. Resource averaging alone cannot be an explanation of such tree lines.
Journal
Journal of Vegetation Science – Wiley
Published: Dec 1, 2001