Impacts of Early Selective Logging on the Dendroecology of an Old-Growth, Bottomland Hemlock-White Pine-Northern Hardwood Forest on the Allegheny Plateau

1999 ◽  
Vol 126 (3) ◽  
pp. 234 ◽  
Author(s):  
David A. Orwig ◽  
Marc D. Abrams
Keyword(s):  
Selective Logging ◽  
Hardwood Forest ◽  
Northern Hardwood Forest ◽  
White Pine ◽  
Old Growth ◽  
Northern Hardwood ◽  
Allegheny Plateau

Species enrichment in a transitional landscape, northern lower Michigan

1994 ◽  
Vol 72 (2) ◽  
pp. 217-226 ◽  
Author(s):  
Samuel M. Scheiner ◽  
Conrad A. Istock
Keyword(s):  
Sugar Maple ◽  
Deciduous Forest ◽  
Vascular Plant ◽  
Hardwood Forest ◽  
Northern Hardwood Forest ◽  
The South ◽  
White Pine ◽  
Forest Diversity ◽  
Northern Hardwood ◽  
Group I

The hemlock – white pine – northern hardwood forest region of North America is a transition between the deciduous forests to the south and the boreal forests to the north. In a survey of vascular plant communities in northern lower Michigan we examined species diversity and landscape pattern. Surveying 47 sites we found 483 vascular plant species: 37 tree species, 67 shrub species, 4 vine species, and 375 herbaceous species; there was a mean of 74.3 ± 4.2 species per site. Mean Jaccard similarity among sites was 0.22 ± 0.01 and mosaic diversity, a measure of landscape complexity, was 3.01 ± 0.03. Using nonmetric multidimensional scaling and cluster analysis, two distinct groups of communities were differentiated: group I consisted of communities on mesic upland to wet lowland sites dominated by sugar maple, beech, hemlock, cedar, tamarack, and spruce; group II consisted of communities on xeric to dry-mesic upland moraines and level plains dominated by pines, red oak, birch, and aspen. Each group encompassed a separate south to north transition. Contrary to continental trends, species richness was greatest in sites with the greatest percentage of northern species. The region is more species-rich than adjacent regions to the south and north. We present four hypotheses to explain this species enrichment. Key words: boreal forest, deciduous forest, diversity, hemlock – white pine – northern hardwood forest, transition zone.

Pedodiversity in an old-growth northern hardwood forest in the Huron Mountains, Upper Peninsula, Michigan

2007 ◽  
Vol 37 (6) ◽  
pp. 1106-1117 ◽  
Author(s):  
B.C. Scharenbroch ◽  
J.G. Bockheim
Keyword(s):  
Cation Exchange ◽  
Tree Species ◽  
Cation Exchange Capacity ◽  
Exchange Capacity ◽  
Eastern Hemlock ◽  
Hardwood Forest ◽  
Northern Hardwood Forest ◽  
Old Growth ◽  
Individual Tree ◽  
Northern Hardwood

We investigated three primary causes of old-growth forest pedodiversity imposed by top-down trophic interactions, including pit and mound topography from past tree fall events, current canopy gaps from tree falls, and the influence of individual tree species on soil properties and processes. In this paper, we discuss the effects of pits, mounds, gaps, and individual tree species on pedodiversity in a single soil map unit in an old-growth northern hardwood forest. Pits and level areas had significantly greater soil organic matter, cation-exchange capacity, and exchangeable K and Ca contents than mounds. Gap subplots had significantly less cation-exchange capacity, K, Mg, and Ca compared with level areas within the contiguous forest. Base cations (K, Mg, and Ca) were significantly greater under sugar maple ( Acer saccharum Marsh.) compared with eastern hemlock ( Tsuga canadensis (L.) Carr.). Extractable P was significantly greater under yellow birch ( Betula alleghaniensis Britt.) compared with eastern hemlock. We quantified pedodiversity in an old-growth northern hardwood forest stand and single soil map unit using principal components analyses, ArcGIS, and biodiversity indices. Our results suggest that pedodiversity should be considered in soil survey and forest management.

Earthworms, litter and soil carbon in a northern hardwood forest

2012 ◽  
Vol 114 (1-3) ◽  
pp. 269-280 ◽  
Author(s):  
Timothy J. Fahey ◽  
Joseph B. Yavitt ◽  
Ruth E. Sherman ◽  
John C. Maerz ◽  
Peter M. Groffman ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Hardwood Forest ◽  
Northern Hardwood Forest ◽  
Northern Hardwood
Sign in / Sign up

Export Citation Format

Share Document