Shelterwood Felling in Late Successional Stands in Alberta's Rocky Mountain Subalpine Forest
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چکیده
منابع مشابه
Spatial Characteristics of Fire Severity in Relation to Fire Growth in a Rocky Mountain Subalpine Forest
We compared the spatial characteristics of fire severity patches within individual fire “runs” (contiguous polygons burned during a given day) resulting from a 72,000 ha fire in central Idaho in 1994. Our hypothesis was that patch characteristics of four fire severity classes (high, moderate, low, and unburned), as captured by five landscape metrics, would vary with the size of the run (ranging...
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Fossil fuel combustion has increased atmospheric CO2 by≈ 115 μmol mol 1 since 1750 and decreased its carbon isotope composition (δC) by 1.7–2‰ (the C Suess effect). Because carbon is stored in the terrestrial biosphere for decades and longer, the δC of CO2 released by terrestrial ecosystems is expected to differ from the δC of CO2 assimilated by land plants during photosynthesis. This isotopic ...
متن کاملTree age, disturbance history, and carbon stocks and fluxes in subalpine Rocky Mountain forests
Forest carbon stocks and fluxes vary with forest age, and relationships with forest age are often used to estimate fluxes for regional or national carbon inventories. Two methods are commonly used to estimate forest age: observed tree age or time since a known disturbance. To clarify the relationships between tree age, time since disturbance and forest carbon storage and cycling, we examined st...
متن کاملBiogeochemical impacts of wildfires over four millennia in a Rocky Mountain subalpine watershed.
Wildfires can significantly alter forest carbon (C) storage and nitrogen (N) availability, but the long-term biogeochemical legacy of wildfires is poorly understood. We obtained a lake-sediment record of fire and biogeochemistry from a subalpine forest in Colorado, USA, to examine the nature, magnitude, and duration of decadal-scale, fire-induced ecosystem change over the past c. 4250 yr. The h...
متن کاملIntermediate disturbance in a late-successional hemlock-northern hardwood forest
1 An old-growth mesic forest in northern Michigan, USA, experienced an unusually intense storm in July 2002. Permanent inventory plots and a 2.9-ha mapped stand allow comparison of effects of this rare disturbance with patterns of ‘baseline’ mortality. 2 Tree mortality attributable to immediate effects of the storm was of similar magnitude to mortality over the previous decade, amounting to abo...
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ژورنال
عنوان ژورنال: The Forestry Chronicle
سال: 1970
ISSN: 0015-7546,1499-9315
DOI: 10.5558/tfc46380-5