If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Ectomycorrhizal mushroom response to partial cutting in a western hemlock - western redcedar forest

$50.00 plus tax (Refund Policy)

Buy Article:

Abstract:

We examined epigeous ectomycorrhizal mushroom richness and productivity after partial cutting in a western hemlock (Tsuga heterophylla (Raf.) Sarg.) - western redcedar (Thuja plicata Donn ex D. Don in Lamb.) forest of northwestern British Columbia. Mushrooms were collected throughout the fruiting season (July to October) for 3 years, starting 5 years after partial cutting, from plots with mesic soil conditions and residual basal areas ranging from 23 to 69 m2/ha for western hemlock and 0 to 26 m2/ha for western redcedar. Partial cutting had no apparent effect on mushroom phenology over the 3 years. Significant block interactions demonstrated that reductions in basal area of western hemlock could lead to positive, neutral, and negative responses in mushroom richness, biomass, and number of fruiting bodies. These responses were related to stand structure and the potential differences in tree vigour after partial cutting. In addition, there was weak evidence that western redcedar, a host for vesicular-arbuscular mycorrhiza, had a negative effect on average taxon richness. The study demonstrated that partial-cutting systems could allow some timber removal without necessarily reducing ectomycorrhizal mushroom communities.

Nous avons étudié la richesse et la productivité des fructifications épigées des champignons ectomycorhiziens après une coupe partielle dans une forêt de pruche de l'Ouest (Tsuga heterophylla (Raf.) Sarg.) et de thuya géant (Thuja plicata Donn ex D. Don) du Nord-Ouest de la Colombie-Britannique. Les carpophores ont été collectés pendant toute la saison de croissance, de juillet à octobre, pendant 3 ans en commençant 5 ans après la coupe partielle, dans des placettes avec un sol mésique et une surface terrière variant de 23 à 69 m2/ha pour la pruche de l'Ouest et de 0 à 26 m2/ha pour le thuya géant. La coupe partielle n'a apparemment eu aucun effet sur la phénologie des carpophores au cours des 3 années de l'étude. Des interactions significatives entre les blocs ont démontré que la réduction de la surface terrière de la pruche de l'Ouest pouvait avoir des effets positifs, neutres ou négatifs sur la richesse, la biomasse et le nombre de carpophores. Ces réactions étaient reliées à la structure du peuplement et aux différences vraisemblables dans la vigueur des arbres suite à la coupe partielle. De plus, il y avait de faibles indices que le thuya géant, un hôte des mycorhizes à vésicules et arbuscules, a un effet négatif sur la richesse moyenne des taxons. L'étude démontre que la coupe partielle pourrait permettre une certaine récolte de bois sans nécessairement réduire les communautés de champignons ectomycorhiziens.[Traduit par la Rédaction]

Document Type: Research Article

Publication date: June 1, 2001

More about this publication?
  • Published since 1971, this monthly journal features articles, reviews, notes and commentaries on all aspects of forest science, including biometrics and mensuration, conservation, disturbance, ecology, economics, entomology, fire, genetics, management, operations, pathology, physiology, policy, remote sensing, social science, soil, silviculture, wildlife and wood science, contributed by internationally respected scientists. It also publishes special issues dedicated to a topic of current interest.
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Terms & Conditions
  • Sample Issue
  • Reprints & Permissions
  • ingentaconnect is not responsible for the content or availability of external websites
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more