Diameter distribution of some subalpine fir stands in central British Columbia

✍ Scribed by Pal Varga; Karel Klinka

• Book ID: 104755421
• Publisher: Springer
• Year: 1996
• Tongue: English
• Weight: 464 KB
• Volume: 39
• Category: Article
• ISSN: 0167-6369
• DOI: 10.1007/bf00396172

✦ Synopsis

Diameter distributions of subalpine fir (Abies lasiocarpa (Hook.) Nutt.) in central British Columbia were investigated. Nine fire-originated, old-growth stands were selected with maximum tree age at breast height of about 300 years. The stage of stand development was determined by testing how well a negative exponential function matched the cumulative diameter distribution. As a comparison, the negative exponential function was also fitted on the frequency distributions. Eight out of the nine distributions showed fewer medium-sized trees and more large-sized trees than predicted by the negative exponential function. One stand showed relatively good fit, but failed the lack-of-fit test. Although the diameter distributions are close to a balanced stage, stand establishment patterns are still evident 300 years after disturbance.