Canadian Journal of Forest Research
SCIE-ISI SCOPUS (1974,1976-2023)
0045-5067
1208-6037
Canada
Cơ quản chủ quản: Canadian Science Publishing , National Research Council of Canada
Lĩnh vực:
ForestryEcologyGlobal and Planetary Change
Các bài báo tiêu biểu
Use of Logarithmic Regression in the Estimation of Plant Biomass The basic assumptions of regression analysis are recalled with special reference to the use of a logarithmic transformation. The limitations imposed on inference-making by failure to comply with these assumptions are discussed and ways to avoid the limitations indicated. A systematic bias of the order of 10 to 20% which is inherent in most, if not all, prior uses of the logarithmic equati... ... hiện toàn bộ
Tập 2 Số 1 - Trang 49-53 - 1972
Conditions for the start and spread of crown fire Some theory and observations are presented on the factors governing the start and spread of crown fire in conifer forests. Crown fires are classified in three ways according to the degree of dependence of the crown phase of the fire on the ground surface phase. The crown fuel is pictured as a layer of uniform bulk density and height above ground. Simple criteria are presented for the init... ... hiện toàn bộ
Tập 7 Số 1 - Trang 23-34 - 1977
A simple method for cross-dating increment cores from living trees For many types of forest studies, it is essential to identify the exact years of formation of annual rings in increment cores taken from living trees. To accomplish this, dendrochronologists employ cross dating, which involves both ring counting and ring-width pattern matching, to ensure against counting error, or errors, caused by missing or false rings. To date, published accounts of th... ... hiện toàn bộ
Tập 21 Số 3 - Trang 414-416 - 1991
Guidelines for developing and updating Bayesian belief networks applied to ecological modeling and conservation Bayesian belief networks (BBNs) are useful tools for modeling ecological predictions and aiding resource-management decision-making. We provide practical guidelines for developing, testing, and revising BBNs. Primary steps in this process include creating influence diagrams of the hypothesized "causal web" of key factors affecting a species or ecological outcome of interest; developing a ... ... hiện toàn bộ
Tập 36 Số 12 - Trang 3063-3074 - 2006
Responses of insect pests, pathogens, and invasive plant species to climate change in the forests of northeastern North America: What can we predict?This article is one of a selection of papers from NE Forests 2100: A Synthesis of Climate Change Impacts on Forests of the Northeastern US and Eastern Canada. Climate models project that by 2100, the northeastern US and eastern Canada will warm by approximately 3–5 °C, with increased winter precipitation. These changes will affect trees directly and also indirectly through effects on “nuisance” species, such as insect pests, pathogens, and invasive plants. We review how basic ecological principles can be used to predict nuisance species’ respon... ... hiện toàn bộ
Tập 39 Số 2 - Trang 231-248 - 2009
The history and transformation of a Scandinavian boreal forest landscape since the 19th century
Tập 27 Số 8 - Trang 1198-1206 - 1997
A methodology for estimating canopy disturbance frequency and intensity in dense temperate forests Analysis of the frequency of past moderate and high-intensity disturbances has been hindered in forests of complex age structure by methodological problems. A methodology is proposed for developing a disturbance chronology in such stands by identifying the probable date of canopy accession for each sample tree. Canopy accession dates are based on an evaluation of radial growth pattern and... ... hiện toàn bộ
Tập 19 Số 5 - Trang 651-663 - 1989
Tree life history strategies: the role of defenses Analysis of energy partitioning between defensive investments and growth in woody plants indicates that increasing a tree's life-span should require increased energy investment in protective measures such as thick bark and defensive chemicals. Increased investment in such defenses, however, logically must slow down the growth rate, thereby raising the mortality rate for juveniles in compe... ... hiện toàn bộ
Tập 18 Số 2 - Trang 209-222 - 1988
Atmospheric deposition and canopy interactions of nitrogen in forests Wet deposition of nitrogen compounds was measured and dry and cloud water deposition were estimated at 11 forested sites in North America and one site in Europe. Dry deposition was a significant pathway of N input to all the forests, averaging 46% of the total deposition. At most of these sites, NH4 + was the dominant form of fixed N in the air, bu... ... hiện toàn bộ
Tập 23 Số 8 - Trang 1603-1616 - 1993
Trends in the frequency, extent, and severity of spruce budworm outbreaks in eastern Canada The history of spruce budworm (Choristoneurafumiferana (Clem.)) outbreaks for the past 200 to 300 years, for nine regions in eastern Canada, indicates that outbreaks have occurred more frequently in the 20th century than previously. Regionally, 21 outbreaks took place in the past 80 years compared with 9 in the preceding 100 years. Earlier infestations were restricted to specific regions,... ... hiện toàn bộ
Tập 13 Số 4 - Trang 539-547 - 1983