NDLI: Canopy gap disturbance and succession in trembling aspen dominated boreal forests in northeastern Ontario

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Canopy gap disturbance and succession in trembling aspen dominated boreal forests in northeastern Ontario

Content Provider	Semantic Scholar
Author	Hill, Steven Burton Mallik, Azim Chen, Han Y. H.
Copyright Year	2005
Abstract	Canopy gaps play an important role in forest vegetation dynamics when fire return intervals are long. However, there is little known about the role of gaps in the development of forest stands that initially dominate following stand-replacing disturbance. We investigated gap disturbance during the breakup of trembling aspen (Populus tremuloides Michx.) stands at two scales: at the stand level we quantified gap fraction and gap size as stand development proceeds; at the gap level we determined causes of gap-maker mortality and evaluated resulting gap-maker structure and decay as stand development proceeds. We also evaluated the impact that gaps have on stand transition by quantifying the abundance and growth of juvenile trees in gaps of different sizes and ages. Ten stands between 60 and 120 years since fire in northeastern Ontario were sampled using line intersect transects. Gap fraction doubled (∼18%36%) and mean gap size was more than four times greater (∼45200 m2) over the time period. Standing dead g...
Starting Page	1942
Ending Page	1951
Page Count	10
File Format	PDF HTM / HTML
DOI	10.1139/x05-126
Volume Number	35
Alternate Webpage(s)	http://flash.lakeheadu.ca/~amallik/publication%20pdf/2005/Hill%20et%20al.%202005.pdf
Alternate Webpage(s)	https://doi.org/10.1139/x05-126
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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