Soil Chemistry in a Loblolly/Longleaf Pine Forest with Interval Burning

1992 ◽  
Vol 2 (2) ◽  
pp. 157-164 ◽  
Author(s):  
Dan Binkley ◽  
Dan Richter ◽  
Mark B. David ◽  
Bruce Caldwell
Keyword(s):  
Soil Chemistry ◽  
Longleaf Pine ◽  
Pine Forest

scholarly journals INSECT POLLINATORS OF THREE RARE PLANTS IN A FLORIDA LONGLEAF PINE FOREST

2002 ◽  
Vol 85 (2) ◽  
pp. 308-316 ◽  
Author(s):  
Theresa L. Pitts-Singer ◽  
James L. Hanula ◽  
Joan L. Walker
Keyword(s):  
Longleaf Pine ◽  
Rare Plants ◽  
Pine Forest ◽  
Insect Pollinators

The effect of spatially variable overstory on the understory light environment of an open-canopied longleaf pine forest

2002 ◽  
Vol 32 (11) ◽  
pp. 1984-1991 ◽  
Author(s):  
Michael A Battaglia ◽  
Pu Mou ◽  
Brian Palik ◽  
Robert J Mitchell
Keyword(s):  
Spatial Variation ◽  
Spatial Patterns ◽  
Longleaf Pine ◽  
Light Availability ◽  
Canopy Structure ◽  
Basal Area ◽  
Pinus Palustris ◽  
Pine Forest ◽  
Large Group ◽  
The Relationship

Spatial aggregation of forest structure strongly regulates understory light and its spatial variation in longleaf pine (Pinus palustris Mill.) forest ecosystems. Previous studies have demonstrated that light availability strongly influences longleaf pine seedling growth. In this study, the relationship between spatial structure of a longleaf pine forest and spatial pattern of understory light availability were investigated by comparing three retention harvest treatments: single-tree, small-group, large-group, and an uncut control. The harvests retained similar residual basal area but the spatial patterns of the residual trees differed. Hemispherical photographs were taken at 300 stations to calculate gap light index (GLI), an estimate of understory light availability. Stand-level mean, variation, and spatial distribution of GLI were determined for each treatment. By aggregating residual trees, stand mean GLI increased by 20%, as well as its spatial variation. Spatial autocorrelation of GLI increased as the size of the canopy gaps increased and the gaps were better defined; thus, the predictability of GLI was enhanced. The ranges of detrended semivariograms were increased from the control to the large-group harvest indicating the spatial patterns of understory GLI became coarser textured. Our results demonstrated that aggregated canopy structure of longleaf pine forest will facilitate longleaf pine seedling regeneration.

scholarly journals Intra-Annual Variation in Soil C, N and Nutrients Pools after Prescribed Fire in a Mississippi Longleaf Pine (Pinus palustris Mill.) Plantation

Forests ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 181
Author(s):  
John R. Butnor ◽  
Kurt H. Johnsen ◽  
Christopher A. Maier ◽  
C. Dana Nelson
Keyword(s):  
Prescribed Fire ◽  
Forest Floor ◽  
Soil Chemistry ◽  
Annual Variation ◽  
Longleaf Pine ◽  
Pinus Palustris ◽  
Southern Pine ◽  
Soil C ◽  
Soil C And N ◽  
C And N

Prescribed fire is an essential tool that is widely used for longleaf pine (Pinus palustris Mill.) stand management; periodic burning serves to reduce competition from woody shrubs and fire-intolerant trees and enhance herbaceous diversity. Low-intensity, prescribed burning is thought to have minimal long-term impact on soil chemistry in southern pine forests, although few studies report the intra-annual variation in soil chemistry after burning. We monitored changes in C, N, oxidation resistant C (CR), pH and elemental nutrients in the forest floor and soil (0–5, 5–10 cm depths) before and after burning (1, 3, 6, 12 months) in a mature longleaf pine plantation at the Harrison Experimental Forest, near Saucier, Mississippi. Prescribed fire consumed much of the forest floor (11.3 Mg ha−1; −69%), increased soil pH and caused a pulse of C, N and elemental nutrients to flow to the near surface soils. In the initial one to three months post-burn coinciding with the start of the growing season, retention of nutrients by soil peaked. Most of the N (93%), Ca (88%), K (96%) and Mg (101%), roughly half of the P (48%) and Mn (52%) and 25% of the C lost from the forest floor were detected in the soil and apparently not lost to volatilization. By month 12, soil C and N pools were not different at depths of 0–5 cm but declined significantly below pre-burn levels at depths of 5–10 cm, C −36% (p < 0.0001), N −26% (p = 0.003), contrary to other examples in southern pine ecosystems. In the upper 5 cm of soil, only Cu (−49%) remained significantly lower than pre-burn contents by month 12, at depths of 5–10 cm, Cu (−76%), Fe (−22%), K (−51%), Mg (−57%), Mn (−82%) and P (−52%) remain lower at month 12 than pre-burn contents. Burning did not increase soil CR content, conversely significant declines in CR occurred. It appears that recovery of soil C and N pools post-burn will require more time on this site than other southern pine forests.

scholarly journals Endogenous and exogenous controls of root life span, mortality and nitrogen flux in a longleaf pine forest: root branch order predominates

2008 ◽  
Vol 96 (4) ◽  
pp. 737-745 ◽  
Author(s):  
Dali Guo ◽  
Robert J. Mitchell ◽  
Jennifer M. Withington ◽  
Ping-Ping Fan ◽  
Joseph J. Hendricks
Keyword(s):  
Life Span ◽  
Longleaf Pine ◽  
Pine Forest ◽  
Nitrogen Flux ◽  
Branch Order ◽  
Root Branch Order ◽  
Root Life Span

scholarly journals Frequently burned loblolly–shortleaf pine forest in the southeastern United States lacks the stability of longleaf pine forest

Ecosphere ◽  
2020 ◽  
Vol 11 (2) ◽  
Author(s):  
George Matusick ◽  
Stephen J. Hudson ◽  
Caleb Z. Garrett ◽  
Lisa J. Samuelson ◽  
James D. Kent ◽  
...  
Keyword(s):  
United States ◽  
Longleaf Pine ◽  
Southeastern United States ◽  
Pine Forest ◽  
Shortleaf Pine ◽  
The Stability

scholarly journals The longleaf pine forest: trends and current conditions

1996 ◽  
Author(s):  
Kenneth W. Outcalt ◽  
Raymond M. Sheffield
Keyword(s):  
Longleaf Pine ◽  
Pine Forest
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