Abies alba; Fagus; Picea; altitude; climate; conifers; drought; ecosystem services; forest ecosystems; frost; global warming; growth rings; heat; spring; temperate forests; tree growth; trees
... Extreme climate events (ECEs) such as severe droughts, heat waves, and late spring frosts are rare but exert a paramount role in shaping tree species distributions. The frequency of such ECEs is expected to increase with climate warming, threatening the sustainability of temperate forests. Here, we analyzed 2,844 tree‐ring width series of five dominant European tree species from 104 Swiss sites ra ...
Richard, Brigitte, et al. ; Johns, Robert C.; Bowden, Joseph J.; Carleton, Drew R.; Cooke, Barry J.; Edwards, Sara; Emilson, Erik J. S.; James, Patrick M. A.; Kneeshaw, Dan; MacLean, David A.; Martel, Véronique; Moise, Eric R. D.; Mott, Gordon D.; Norfolk, Chris J.; Owens, Emily; Pureswaran, Deepa S.; Quiring, Dan T.; Régnière, Jacques; Stastny, Michael; Show all 19 Authors
Abies balsamea; Choristoneura fumiferana; Picea; leaves; monitoring; pests; population dynamics; stakeholders; trees; North America
... The spruce budworm, Choristoneura fumiferana, Clem., is the most significant defoliating pest of boreal balsam fir (Abies balsamea (L.) Mill.) and spruce (Picea sp.) in North America. Historically, spruce budworm outbreaks have been managed via a reactive, foliage protection approach focused on keeping trees alive rather than stopping the outbreak. However, recent theoretical and technical advance ...
shade tolerance; national forests; trees; Picea; forests; Fagus; forestry development; site index; models; stand density; water holding capacity; temperature; climatic factors; Poisson distribution; prediction; probability; nitrogen; regression analysis; binomial distribution; forest inventory; Weibull statistics; stand basal area
... Accurate and representative prediction of ingrowth is essential for modeling forest development. Besides the number of ingrowth trees, the basic tree attributes diameter and species are also important. In this study, these three characteristics were modeled based on data from the Swiss National Forest Inventory (NFI). The study covered large gradients of stand conditions and climate variables, mak ...