Light attenuation following selection harvesting in northern hardwood forests

Domke, Grant M.; Caspersen, John P.; Jones, Terry

doi:10.1016/j.foreco.2006.12.006

Cited by 30 publications

(17 citation statements)

References 38 publications

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“…Additionally, while recently created openings were clearly unfavorable environments for some species, several species were relatively insensitive to increasing opening size. Recovery of forest species may be more rapid in large openings, however, since light levels near the ground surface decline more quickly in large than small openings due to the vegetative response of woody plants (Domke et al, 2007). Future research should examine the long-term dynamics (persistence and recolonization) of bryophytes within harvest openings.…”

Section: Discussionmentioning

confidence: 99%

Bryophyte community response to silvicultural opening size in a managed northern hardwood forest

Shields

Webster

Glime

2007

Forest Ecology and Management

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Section: Discussionmentioning

confidence: 99%

Bryophyte community response to silvicultural opening size in a managed northern hardwood forest

Shields

Webster

Glime

2007

Forest Ecology and Management

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“…The competitive advantage of shade-tolerant species may be linked to a change in the natural gap phase dynamic processes, where smaller and more frequent gaps are created. Selection management also alters a suite of stand dynamic processes through life-cycle truncation and removal of senescing trees (McGee et al 1999), harvesting effects on tree mortality (Caspersen 2006), reduction in mineral soil exposure and creation of pit-and-mound topography (Caspersen and Saprunoff 2005;Shields et al 2007), and accelerated gap closure (Angers et al 2005;Domke et al 2007) caused by changes in age structure. Although we are not aware of a simple way to distinguish between these effects, a greater understanding of the temporal dynamics of tree growth response is an important step towards understanding how tree-level growth responses may contribute to the shifts in species composition in managed tolerant hardwood forests.…”

Section: Postharvestmentioning

confidence: 99%

Canopy tree growth responses following selection harvest in seven species varying in shade tolerance

2009

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We used tree ring measurements to investigate the temporal response of basal area increment (BAI) of canopy trees following selection harvests by sampling across a chronosequence of stands with known harvest dates in tolerant hardwood (Great Lakes -St. Lawrence) stands in central Ontario. Seven tree species of various shade tolerances ranged widely in their responses to reduced competition. The more shade-tolerant species responded more positively: shade-tolerant species showed an average increase in BAI of 35% 4-15 years postharvest compared with 16% for mid-tolerant species and -7.5% for intolerant species. All species showed a time-lag in postharvest growth responses, with maximum growth responses occurring between 3 and 15 years postharvest. Tree size was the most important factor determining the magnitude of BAI response, with smaller trees consistently responding more than larger trees. We suggest that higher growth responses to selection harvests among shade-tolerant species may contribute to declines in mid-tolerant species abundance in selectionmanaged stands. More broadly, interspecific variability in canopy tree responses to forest disturbance appears to follow patterns distinct from seedling and sapling responses, with important implications to forest community dynamics in both managed and unmanaged forests.Résumé : Nous avons utilisé des mesures d'anneau de croissance pour étudier la réaction temporelle de l'accroissement en surface terrière (AST) d'arbres dominants à la suite de coupes de jardinage en échantillonnant une chronoséquence de peuplements de feuillus tolérants à l'ombre du centre de l'Ontario (région des Grands-Lacs et du St-Laurent) pour lesquels l'année de récolte était connue. La réaction des arbres à une diminution de la compétition a grandement varié parmi sept espèces d'arbre dont la tolérance à l'ombre est différente. Les espèces plus tolérantes à l'ombre ont réagi plus positivement avec une augmentation moyenne de l'AST de 35 %, de 4 à 15 ans après la coupe, comparativement à une augmentation moyenne de 16 % pour les espèces de tolérance intermédiaire et de -7,5 % pour les espèces intolérantes. Un délai de réaction en croissance a été observé pour toutes les espèces à la suite de la coupe et la réaction maximale est survenue entre 3 et 15 ans après la coupe. La taille des arbres était le facteur le plus important pour déterminer l'amplitude de la réaction de l'AST, les plus petits arbres réagissant invariablement davantage que les plus gros arbres. Nous croyons que les plus fortes réactions de croissance aux coupes de jardinage des espèces tolérantes à l'ombre peuvent contribuer au déclin de l'abondance des espèces de tolérance intermédiaire dans les peuplements jardinés. Plus généralement, la variation interspécifique de la réaction des arbres dominants aux perturbations forestières semble suivre un patron distinct de celui des semis et des gaules, ce qui a des implications importantes pour la dynamique des communautés forestières dans les forêts aménagées et non aménagées.[Trad...

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“…So far, various LAI indirect measurement techniques have been evaluated, and theories behind these techniques are becoming mature. Currently, digital hemispherical or fish-eye photography is becoming a common means for measuring LAI as well as studying canopy architecture and solar radiation in forests (Galhidy et al, 2006;Gendron et al, 2006;Jelaska et al, 2006;Jonckheere et al, 2006;Morsdorf et al, 2006;Wagner and Hagemeier, 2006;Domke et al, 2007). Hemispherical photographs have been widely used to measure canopy biophysical parameters (Rich, 1990;Chen and Black, 1991;Pellikka, 2001;Pellikka et al, 2000;Lovell et al, 2003), and to characterize daily and seasonal vegetation light environment (Capers and Chazdon, 2004;Gersonde et al, 2004;Tomita and Seiwa, 2004;Takashima et al, 2006).…”

mentioning

confidence: 99%

Methodology comparison for slope correction in canopy leaf area index estimation using hemispherical photography

Gonsamo¹

2008

Forest Ecology and Management

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Light attenuation following selection harvesting in northern hardwood forests

Cited by 30 publications

References 38 publications

Bryophyte community response to silvicultural opening size in a managed northern hardwood forest

Bryophyte community response to silvicultural opening size in a managed northern hardwood forest

Canopy tree growth responses following selection harvest in seven species varying in shade tolerance

Methodology comparison for slope correction in canopy leaf area index estimation using hemispherical photography

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