Disturbance dynamics influence Carex pensylvanica abundance in a northern hardwood forest1

2008 ◽  
Vol 135 (3) ◽  
pp. 317 ◽  
Author(s):  
Matthew D. Powers ◽  
Linda M. Nagel
Keyword(s):  
Northern Hardwood ◽  
Disturbance Dynamics ◽  
Carex Pensylvanica

Estimating Site Index in Even-Aged Northern Hardwood Stands

1982 ◽  
Author(s):  
Gayne G. Erdmann ◽  
Ralph M. Jr. Peterson
Keyword(s):  
Site Index ◽  
Northern Hardwood

User's guide for the northern hardwood stand models: SIMSAP and SIMTIM

1987 ◽  
Author(s):  
Dale S. Solomon ◽  
Richard A. Hosmer ◽  
Richard A. Hosmer
Keyword(s):  
Northern Hardwood

scholarly journals Preferences for Northern Hardwood Silviculture among Family Forest Owners in Michigan’s Upper Peninsula

2020 ◽  
Author(s):  
Alexander C Helman ◽  
Matthew C Kelly ◽  
Mark D Rouleau ◽  
Yvette L Dickinson
Keyword(s):  
Species Diversity ◽  
Hardwood Forests ◽  
Family Forest Owners ◽  
Forest Owners ◽  
Upper Peninsula ◽  
Northern Hardwood Forests ◽  
Family Forest ◽  
Northern Hardwood ◽  
Single Tree ◽  
Single Tree Selection

Abstract Managing northern hardwood forests using high-frequency, low-intensity regimes, such as single-tree selection, favors shade-tolerant species and can reduce tree species diversity. Management decisions among family forest owners (FFO) can collectively affect species and structural diversity within northern hardwood forests at regional scales. We surveyed FFOs in the Western Upper Peninsula of Michigan to understand likely future use of three silvicultural treatments—single-tree selection, shelterwood, and clearcut. Our results indicate that FFOs were most likely to implement single-tree selection and least likely to implement clearcut within the next 10 years. According to logistic regression, prior use of a treatment and perceived financial benefits significantly increased the odds for likely use for all three treatments. Having received professional forestry assistance increased likely use of single-tree selection but decreased likely use of shelterwood. We discuss these results within the context of species diversity among northern hardwood forests throughout the region.

scholarly journals Assessing Coarse Woody Debris Nutrient Dynamics in Managed Northern Hardwood Forests Using a Matrix Transition Model

Ecosystems ◽  
2019 ◽  
Vol 23 (3) ◽  
pp. 541-554
Author(s):  
Adam Gorgolewski ◽  
Philip Rudz ◽  
Trevor Jones ◽  
Nathan Basiliko ◽  
John Caspersen
Keyword(s):  
Coarse Woody Debris ◽  
Nutrient Dynamics ◽  
Woody Debris ◽  
Hardwood Forests ◽  
Transition Model ◽  
Northern Hardwood Forests ◽  
Northern Hardwood

Variation in canopy gap formation among developmental stages of northern hardwood stands

1996 ◽  
Vol 26 (10) ◽  
pp. 1875-1892 ◽  
Author(s):  
Sally E. Dahir ◽  
Craig G. Lorimer
Keyword(s):  
Sugar Maple ◽  
Tree Mortality ◽  
Developmental Stages ◽  
Turnover Time ◽  
Gap Formation ◽  
Old Growth ◽  
Northern Hardwood ◽  
Hardwood Species ◽  
Shade Tolerant Species ◽  
Mature Stands

Trends in gap dynamics among pole, mature, and old-growth northern hardwood stands were investigated on eight sites in the Porcupine Mountains of western upper Michigan. Recent gaps (created between 1981 and 1992) were identified using permanent plot records of tree mortality, while older gaps (1940–1981) were identified using stand reconstruction techniques. Although canopy gaps were somewhat more numerous in pole and mature stands, gaps were <25% as large as those in old-growth stands because of smaller gap-maker size, and the proportion of stand area turned over in gaps was only about half as large. Gap makers in younger stands generally had mean relative diameters (ratio of gap-maker DBH to mean DBH of canopy trees) <1.0 and were disproportionately from minor species such as eastern hophornbeam (Ostryavirginiana (Mill.) K. Koch). Gap makers in old-growth stands had mean relative diameters >1.5 and were predominantly from the dominant canopy species. Even in old-growth forests, most gaps were small (mean 44 m2) and created by single trees. Based on the identity of the tallest gap tree in each gap, nearly all shade-tolerant and midtolerant species have been successful in capturing gaps, but gap capture rates for some species were significantly different from their relative density in the upper canopy. The tallest gap trees of shade-tolerant species were often formerly overtopped trees, averaging more than 60% of the mean canopy height and having mean ages of 65–149 years. Canopy turnover times, based on gap formation rates over a 50-year period, were estimated to average 128 years for old-growth stands dominated by sugar maple (Acersaccharum Marsh.) and 192 years for old-growth stands dominated by hemlock (Tsugacanadensis (L.) Carrière). While these estimates of turnover time are substantially shorter than maximum tree ages observed on these sites, they agree closely with independent data on mean canopy residence time for trees that die at the average gap-maker size of 51 cm DBH. The data support previous hypothetical explanations of the apparent discrepancy between canopy turnover times of <130 years for hardwood species and the frequent occurrence of trees exceeding 250 years of age.

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
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