Impacts of prescribed fires on forest pollinator communities: Implications for burn size

2016 ◽  
Author(s):  
Conor Grant Fair
Keyword(s):  
Prescribed Fires

Frequent prescribed fires favour ground‐nesting bees in southeastern U.S. forests

2021 ◽  
Author(s):  
Michael D. Ulyshen ◽  
Audrey C. Wilson ◽  
Gunnar C. Ohlson ◽  
Scott M. Pokswinksi ◽  
John K. Hiers
Keyword(s):  
Prescribed Fires ◽  
Ground Nesting

scholarly journals Effects of Prescribed Fires on Young Valley Oak Trees at a Research Restoration Site in the Central Valley of California

2011 ◽  
Vol 19 (1) ◽  
pp. 118-125 ◽  
Author(s):  
Katherine A. Holmes ◽  
Kari E. Veblen ◽  
Alison M. Berry ◽  
Truman P. Young
Keyword(s):  
Central Valley ◽  
Prescribed Fires ◽  
Valley Oak ◽  
Restoration Site ◽  
Oak Trees

Longleaf Pine (Pinus palustris Mill.) Branch Pruning by Prescribed Fire

2021 ◽  
Author(s):  
John P McGuire ◽  
John S Kush ◽  
J Morgan Varner ◽  
Dwight K Lauer ◽  
J Ryan Mitchell
Keyword(s):  
Prescribed Fire ◽  
Longleaf Pine ◽  
Wood Quality ◽  
Pinus Palustris ◽  
Planting Density ◽  
Prescribed Fires ◽  
Pine Tree ◽  
Southeastern Us ◽  
Tree Survival ◽  
The Impact

Abstract Efforts to restore longleaf pine (Pinus palustris Mill.) in the southeastern US require substantial artificial regeneration. Once established, important questions remain about when to introduce fire. We investigated the impact of initial planting density on tree branching and how prescribed fire might interact with tree architecture and survival. A particular focus was on how prescribed fires could “prune” lower branches. Lower density plantings (897 trees ha−1) had more and larger live lower branches than higher density plantings (2,243 trees ha−1). Fire was effective in pruning lower branches regardless of season burned, but fire in the growing season was more effective at pruning. Branches up to a height of 1.5 to 2 m were killed by fire. Fire applied in August caused greater damage with more needles scorched and/or consumed and more stem char. Prescribed fire did not impact longleaf pine tree survival. In general, fire applied to longleaf pine facilitated pruning lower branches that affect long-term wood quality, an additional argument for its utility in restoration and management of these ecosystems.

Changes in soil hydraulic conductivity after prescribed fires in Mediterranean pine forests

2019 ◽  
Vol 232 ◽  
pp. 1021-1027 ◽  
Author(s):  
P.A. Plaza-Álvarez ◽  
M.E. Lucas-Borja ◽  
J. Sagra ◽  
D.A. Zema ◽  
J. González-Romero ◽  
...  
Keyword(s):  
Hydraulic Conductivity ◽  
Pine Forests ◽  
Prescribed Fires ◽  
Soil Hydraulic Conductivity ◽  
Soil Hydraulic ◽  
Mediterranean Pine

scholarly journals Gas-Phase Pyrolysis Products Emitted by Prescribed Fires in Pine Forests with a Shrub Understory in the Southeastern United States

2019 ◽  
Author(s):  
Nicole K. Scharko ◽  
Ashley M. Oeck ◽  
Tanya L. Myers ◽  
Russell G. Tonkyn ◽  
Catherine A. Banach ◽  
...  
Keyword(s):  
Gas Phase ◽  
Pine Forests ◽  
Prescribed Fires ◽  
Pyrolysis Products ◽  
Prescribed Burns ◽  
Extraction Device ◽  
Dominant Process ◽  
Pyrolysis Gases ◽  
Manual Extraction ◽  
Emission Ratios

Abstract. In this study we capture and identify pyrolysis gases from prescribed burns conducted in pine forests with a shrub understory using a manual extraction device. The device selectively sampled emissions ahead of the flame front, minimizing collection of oxidized gases, with the captured gases analyzed in the laboratory using infrared absorption spectroscopy. Results show that emission ratios (ER) relative to CO for ethene, and acetylene were significantly greater than previous fire studies, suggesting that the sample device was able to collect gases prior to ignition. Further evidence that ignition had not begun was corroborated by novel infrared detections of several species, in particular naphthalene. With regards to oxygenated species, several aldehydes (acrolein, furaldehyde, acetaldehyde, formaldehyde) and the carboxylic acids (formic, acetic) were all observed; results show that ERs for acetaldehyde were noticeably greater while ERs for formaldehyde and acetic acid were lower compared to other studies. The acetylene-to-furan ratio also suggests that high temperature pyrolysis was the dominant process generating the collected gases. This hypothesis is further supported by the presence of HCN and the absence of NH3.

scholarly journals Gestión activa frente a matorralización: buscando el equilibrio entre conservación y explotación en montaña

2019 ◽  
Vol 45 (2) ◽  
pp. 423
Author(s):  
T. Lasanta
Keyword(s):  
Soil Erosion ◽  
Cultural Landscapes ◽  
Fire Risk ◽  
Livestock Grazing ◽  
Prescribed Fires ◽  
Negative Effects ◽  
Subsequent Increase ◽  
Positive Effects ◽  
Shrub Clearing ◽  
In Fire

The mountains of Europe, especially in the Mediterranean, have undergone a significant process of revegetation since the mid-20th century with the spread of shrublands and forests in succession stages. This leads to negative effects (degradation of pasture, accumulation of biomass with the subsequent increase in fire risk, loss or trivialized of cultural landscapes, etc.) and other positive ones (greater rewilding of landscapes, recovery of forest life, more CO2 fixation, less soil erosion, etc.). Thus, two alternatives must be put forward: either allow the rewilding process to continue, or intervene in the region to reduce the negative effects of revegetation.In this paper, the literature forms the base for a discussion on the main interventions in the territory: extensive livestock grazing, combined with prescribed fires and shrub clearing. Prescribed fires are found to be insufficient to control the spread of shrublands, and in some cases promotes its regrowth (Echinospartum horridum), as well as degrading the pasture land and increasing soil erosion. On the other hand, clearing shrubland has positive effects: a reduction in wildfires, increased livestock numbers, and improved indicators of heterogeneity and fragmentation of the landscape.

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