Zobrazeno 1 - 10
of 194
pro vyhledávání: '"David D. Reed"'
Publikováno v:
Northern Journal of Applied Forestry. 26:133-140
Sugar maple single-stem real value growth was examined using various published models, original data, and recent harvest information. Trees with dbh of 14, 16, and 18 in. were examined, and it was assumed that trained foresters are able to judge the
Autor:
Anne Collins, David D. Reed, Glenn D. Mroz, Deborah S. Page-Dumroese, Martin F. Jurgensen, Marek Degórski, Peter E. Laks
Publikováno v:
European Journal of Soil Biology. 42:23-31
Wood stake weight loss has been used as an index of wood decomposition in mineral soil, but it may not give a reliable estimate in cold boreal forests where decomposition is very slow. Various wood stake strength tests have been used as surrogates of
Autor:
David D. Reed, Thomas J. Seablom
Publikováno v:
Northern Journal of Applied Forestry. 22:124-131
Seven northern hardwood stands were evaluated for damage after mechanized harvesting. Four different harvesting systems were evaluated: harvester and grapple skidder, processor and forwarder, chainsaw and cable skidder, and chainsaw and forwarder. Th
Publikováno v:
Forest Ecology and Management. 172:191-198
When modeling tree dimensions, it is common in many forest growth models to first predict the potential diameter or height in the absence of resource limitation, and then to modify this downward using functions reflecting the impact of various limiti
Publikováno v:
Forest Ecology and Management. 149:265-274
Age data from hazel (Corylus spp.) and total shrub populations of seven aspen stands in northern Minnesota were used to investigate two age-density distribution models: a negative exponential model and a power function model. The negative exponential
Autor:
Marek Degórski, Glenn D. Mroz, Alicja Breymeyer, John A. Vucetich, Jerzy Solon, Ewa Roo-Zielińska, David D. Reed, R. Noble
Publikováno v:
Forest Ecology and Management. 136:135-145
A significant portion of the Earth’s carbon is in forested terrestrial ecosystems. Carbon fluxes to and from these ecosystems in response to climate change have the potential to alter global climate. To understand how forest carbon budgets may be a
Autor:
Patrick E. Martin, Jason S. McLachlan, Kurt S. Pregitzer, Theodore J. Bornhorst, David D. Reed, Douglas D. Stokke, David R. Foster, Peter E. Laks, Glenn D. Mroz, Shannon E. Brown
Publikováno v:
Journal of Ecology. 88:45-53
Summary 1 Due to a unique set of circumstances, we were able to excavate an entire spruce (Picea) forest in Michigan’s Upper Peninsula, USA, which was buried in the early Holocene (9928 2133 uncalibrated 14 C years BP). Trees ranged from 50cm in di
Publikováno v:
The American Midland Naturalist. 143:94-110
General Land Office (GLO) survey notes (1840–1856), current land cover generated from Landsat TM Imagery (1991) and the Forest Inventory and Analysis plots (1991–1992, US Forest Service) were used to examine changes in forests of the Luce Distric
Autor:
David D. Reed, Blair Orr, James B. Pickens, Charles E. Webster, James M. Schmierer, Dean L. Johnson
Publikováno v:
Northern Journal of Applied Forestry. 26:145-147
This article is a reply to the comment of Wagner (2009) concerning our article in this issue (Webster et al. 2009). We believe that our use of rate of value growth (RVG), which is analogous to internal rate of return, is acceptable and even preferred
Publikováno v:
Forest Ecology and Management. 113:179-189
A large forested landscape (18 640 ha) located in Michigan's central Upper Peninsula was examined to estimate current and pre-European mineral soil carbon (C) content. Utilizing current forest stand information and pre-European settlement forest data