Prescribed Burning in the Oak-pine Forest of the New Jersey Pine Barrens: Effects on Growth and Nutrient Dynamics of Two Quercus Species

1988 ◽  
Vol 120 (1) ◽  
pp. 108 ◽  
Author(s):  
Ralph E. J. Boerner ◽  
Thomas R. Lord ◽  
John C. Peterson
2004 ◽  
Vol 34 (8) ◽  
pp. 1755-1765 ◽  
Author(s):  
Amy R Tuininga ◽  
John Dighton

Forests in the New Jersey pine barrens are frequently prescribed burned to reduce fuel loads and risk of wildfire. To acquire baseline data for effects of prescribed burns on ectomycorrhizal diversity and nutrient uptake, field studies were undertaken in two upland pine–oak forests in the New Jersey pine barrens subjected to different burn regimes. Ectomycorrhizal diversity was assessed by extraction of roots from soil cores and separation according to morphological characters. Nutrient availability to plant roots was measured using root bioassays. Relative to unburned plots, plots exposed to a fire at Greenwood, where burning was more frequent, had decreased total abundance of ectomycorrhizal tips, richness of ectomycorrhizal types, and Simpson's diversity in the L and F horizons, but increased Simpson's diversity in the deeper A horizon. At Lebanon, under a less frequent burn regime, richness was lower in whole cores and in the A horizon of burned versus unburned plots. Nitrogen, phosphorus, and potassium uptake by root bioassays indicated higher field availability of nutrients to roots in burned plots than roots in unburned plots, indicating a fertilization effect of the fire. Prescribed burning primarily impacted ectomycorrhizal community structure in the L and F horizons at these sites. Changes in function of ectomycorrhizae (nutrient uptake) in response to the burns was associated with decreased ectomycorrhizal diversity.


1982 ◽  
Vol 12 (3) ◽  
pp. 503-510 ◽  
Author(s):  
Ralph E. J. Boerner ◽  
R. T. T. Forman

The hydrologic and mineral budgets of upland forest sites in the New Jersey Pine Barrens exposed to different fire intensities were determined. Inputs from bulk precipitation and outputs to groundwater were monitored in an unburned control site, two sites burned by severe wildfire, and two sites burned by light prescribed burning. Fluxes of water, calcium, magnesium, and potassium to groundwater were highest in wildfire sites, intermediate in prescribed burn sites, and lowest in the unburned control. At all sites, outputs were the greatest during late-winter snowmelt. In the unburned site, outputs were essentially absent during the growing season, whereas in the wildfire sites outputs to groundwater were present year round. Rates of mineral and water output were inversely proportional to biomass and forest floor mass, which in turn depended upon fire intensity. Relative increases in output were similar to those reported following fire in other ecosystems. However, absolute rates of mineral output both before and after fire were lower in these sandy soils than those reported elsewhere, probably due to the low total mineral storage and variety of fire adaptations present in the Pine Barrens ecosystem.


2010 ◽  
Vol 3 (4) ◽  
pp. 295-301 ◽  
Author(s):  
Karena DiLeo ◽  
Kimberly Donat ◽  
Amelia Min-Venditti ◽  
John Dighton

Soil Science ◽  
1986 ◽  
Vol 142 (3) ◽  
pp. 125-131 ◽  
Author(s):  
CHENFANG LIN ◽  
L. A. DOUGLAS ◽  
H. L. MOTTO ◽  
W. J. BUSSCHER

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