Canopy Gap Dynamics in a Second-Growth Appalachian Hardwood Forest in West Virginia

Castanea ◽  
2013 ◽  
Vol 78 (3) ◽  
pp. 171-184 ◽  
Author(s):  
Jamie Marie Himes ◽  
James S. Rentch
Keyword(s):  
West Virginia ◽  
Canopy Gap ◽  
Hardwood Forest ◽  
Gap Dynamics ◽  
Second Growth

Canopy gap dynamics of second-growth red spruce-northern hardwood stands in West Virginia

2010 ◽  
Vol 260 (10) ◽  
pp. 1921-1929 ◽  
Author(s):  
James S. Rentch ◽  
Thomas M. Schuler ◽  
Gregory J. Nowacki ◽  
Nathan R. Beane ◽  
W. Mark Ford
Keyword(s):  
West Virginia ◽  
Canopy Gap ◽  
Red Spruce ◽  
Gap Dynamics ◽  
Northern Hardwood ◽  
Second Growth

Canopy gap dynamics and tree understory release in a virgin beech forest, Slovakian Carpathians

2018 ◽  
Vol 415-416 ◽  
pp. 38-46 ◽  
Author(s):  
Eike Feldmann ◽  
Lars Drößler ◽  
Markus Hauck ◽  
Stanislav Kucbel ◽  
Viliam Pichler ◽  
...  
Keyword(s):  
Beech Forest ◽  
Canopy Gap ◽  
Gap Dynamics

Stand Dynamics of an Old-Growth Eastern Hemlock-Hardwood Forest in West Virginia

2010 ◽  
Vol 30 (1) ◽  
pp. 64-72 ◽  
Author(s):  
Nathan R. Beane ◽  
Eric Heitzman ◽  
Thomas M. Schuler
Keyword(s):  
West Virginia ◽  
Eastern Hemlock ◽  
Hardwood Forest ◽  
Stand Dynamics ◽  
Old Growth

Leaf Litter Redistribution in a West Virginia Hardwood Forest

1981 ◽  
Vol 69 (1) ◽  
pp. 225 ◽  
Author(s):  
Kenneth A. Orndorff ◽  
Gerald E. Lang
Keyword(s):  
West Virginia ◽  
Leaf Litter ◽  
Hardwood Forest

scholarly journals An Evaluation of Big Basal Area Factor Sampling in Appalachian Hardwoods

2006 ◽  
Vol 23 (1) ◽  
pp. 62-65 ◽  
Author(s):  
John R. Brooks
Keyword(s):  
Data Collection ◽  
West Virginia ◽  
Sampling Error ◽  
Basal Area ◽  
Volume Estimation ◽  
Hardwood Forest ◽  
Standard Errors ◽  
Sampling Techniques ◽  
Appalachian Hardwoods

Abstract Big basal area factor (BAF) sampling techniques were investigated in a 70-year-old even-aged hardwood forest in northern West Virginia. Data collection procedures permitted the investigation of several small BAFs when employed with 12 big BAFs ranging from 55 to 300. Mean board foot volume per acre for sawtimber products was investigated along with a comparison of the resultant standard errors. The estimated mean volume per acre was quite stable. The same approximate mean volume per acre was obtained using big BAF values of 55 and 150 but with a 66% reduction in the number of sample trees needed for volume estimation. Sampling error increased with increasing big BAF, especially above values of 150. Sampling error within a single big BAF value was stable across the range of small BAFs sampled.

An analysis of elm (Ulmus americana) mortality in a second-growth hardwood forest in southeastern Michigan

1976 ◽  
Vol 54 (10) ◽  
pp. 1120-1125 ◽  
Author(s):  
Curtis J. Richardson ◽  
Charles W. Cares
Keyword(s):  
Acer Rubrum ◽  
Dutch Elm Disease ◽  
Forest Community ◽  
Reproductive Capacity ◽  
Hardwood Forest ◽  
Importance Value ◽  
Ulmus Americana ◽  
Important Species ◽  
Quercus Macrocarpa ◽  
Second Growth

A second-growth hardwood forest containing both wet lowland and mesic upland sites in southeastern Michigan was studied 24 years after the introduction of Dutch elm disease. American elm (Ulmus americana) surprisingly had the highest importance value (IV = 61/300) (IV = relative density + relative dominance + relative frequency). Two other species (Acer rubrum and Quercus macrocarpa) closely followed elm with IVs of 41/300 and 38/300. respectively. Mortality for all trees surveyed was 20.4%. Elm comprised 86.6% of this total. Although reduced, the present IV for elm and the percentage of living individuals in each diameter class indicate that elm is still an important species in the forest community. Elm mortality reached 100% only on the poorly drained lowland pockets where densities of elm exceeded 50%. Its high reproductive capacity and dispersal rate indicate that elm will continue to exist as an important species, even if not a canopy dominant, in some types of hardwood communities.

Effects of selective tree harvests on aboveground biomass and net primary productivity of a second-growth northern hardwood forest

2010 ◽  
Vol 40 (12) ◽  
pp. 2360-2369 ◽  
Author(s):  
Jacob H. Dyer ◽  
Stith T. Gower ◽  
Jodi A. Forrester ◽  
Craig G. Lorimer ◽  
David J. Mladenoff ◽  
...  
Keyword(s):  
Primary Productivity ◽  
Net Primary Productivity ◽  
Growing Season ◽  
Hardwood Forest ◽  
Northern Hardwood Forest ◽  
Aboveground Net Primary Productivity ◽  
Transition Zones ◽  
Northern Hardwood ◽  
Growing Seasons ◽  
Second Growth

Restoring structural features of old-growth forests, such as increased canopy gap sizes and coarse woody debris, is a common management goal for second-growth, even-aged stands. We experimentally manipulated forest structure by creating variable-size canopy gaps in a second-growth northern hardwood forest in north-central Wisconsin following two growing seasons of pre-treatment monitoring. The objectives of this study were to quantify the influence of canopy gaps of different sizes (50–380 m2) on aboveground biomass and productivity of each vegetation stratum two growing seasons following treatment. Two years after treatment, ground layer biomass in canopy openings increased significantly relative to surrounding undisturbed transition zones. The response of ground layer biomass was greatest in the large versus the medium and small gaps. Sapling aboveground net primary productivity was significantly greater in undisturbed transition zones than within gaps across gap sizes following the second post-treatment growing season. Annual stem diameter increment was greatest for trees along gap borders and was correlated with crown class, percentage of crown perimeter exposed, gap area, and shade tolerance. Total aboveground net primary productivity was significantly lower in the gap addition plots the first year but by the second post-treatment growing season no longer differed from that in the control plots.

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