Seasonal and spatial patterns of S, Ca, and N dynamics of a Northern Hardwood forest ecosystem

1992 ◽  
Vol 17 (3) ◽  
pp. 165-189 ◽  
Author(s):  
Myron J. Mitchell ◽  
Marianne K. Burke ◽  
James P. Shepard
Keyword(s):  
Spatial Patterns ◽  
Forest Ecosystem ◽  
Hardwood Forest ◽  
Northern Hardwood Forest ◽  
N Dynamics ◽  
Northern Hardwood

scholarly journals The Northern hardwood forest ecosystem: ten years of recovery from clearcutting

1987 ◽  
Author(s):  
J.W. Hornbeck ◽  
C.W. Martin ◽  
R.S. Pierce ◽  
F.H. Bormann ◽  
G.E. Likens ◽  
...  
Keyword(s):  
Forest Ecosystem ◽  
Hardwood Forest ◽  
Northern Hardwood Forest ◽  
Northern Hardwood

Soil respiration and soil carbon balance in a northern hardwood forest ecosystem

2005 ◽  
Vol 35 (2) ◽  
pp. 244-253 ◽  
Author(s):  
T J Fahey ◽  
G L Tierney ◽  
R D Fitzhugh ◽  
G F Wilson ◽  
T G Siccama
Keyword(s):  
Forest Ecosystem ◽  
Forest Floor ◽  
Root Exudation ◽  
Mineral Soil ◽  
Hardwood Forest ◽  
Northern Hardwood Forest ◽  
Soil C ◽  
Northern Hardwood ◽  
Long Term Study ◽  
C Balance

Soil C fluxes were measured in a northern hardwood forest ecosystem at the Hubbard Brook Experimental Forest to provide insights into the C balance of soils at this long-term study site. Soil CO2 emission (FCO2) was estimated using a univariate exponential model as a function of soil temperature based on 23 measurement dates over 5 years. Annual FCO2 for the undisturbed northern hardwood forest was estimated at 660 ± 54 g C·m–2·year–1. Low soil moisture significantly reduced FCO2 on three of the measurement dates. The proportion of FCO2 derived from the forest floor horizons was estimated empirically to be about 58%. We estimated that respiration of root tissues contributed about 40% of FCO2, with a higher proportion for mineral soil (46%) than for forest floor (35%). Soil C-balance calculations, based upon evidence that major soil C pools are near steady state at this site, indicated a large C flux associated with root exudation plus allocation to mycorrhizal fungi (80 g C·m–2·year–1, or 17% of total root C allocation); however, uncertainty in this estimate is high owing especially to high error bounds for root respiration flux. The estimated proportion of FCO2 associated with autotrophic activity (52%) was comparable with that reported elsewhere (56%).

Landscape variation in microarthropod response to calcium addition in a northern hardwood forest ecosystem

Pedobiologia ◽  
2006 ◽  
Vol 50 (1) ◽  
pp. 69-78 ◽  
Author(s):  
Melany C. Fisk ◽  
Will R. Kessler ◽  
Ava Goodale ◽  
Timothy J. Fahey ◽  
Peter M. Groffman ◽  
...  
Keyword(s):  
Forest Ecosystem ◽  
Hardwood Forest ◽  
Northern Hardwood Forest ◽  
Northern Hardwood ◽  
Calcium Addition ◽  
Landscape Variation

Nitrogen Budget for an Aggrading Northern Hardwood Forest Ecosystem

Science ◽  
1977 ◽  
Vol 196 (4293) ◽  
pp. 981-983 ◽  
Author(s):  
F. H. BORMANN ◽  
G. E. LIKENS ◽  
J. M. MELILLO
Keyword(s):  
Forest Ecosystem ◽  
Nitrogen Budget ◽  
Hardwood Forest ◽  
Northern Hardwood Forest ◽  
Northern Hardwood
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