This study was conducted from 2012-2013 in a 96 year old longleaf pine at the Lake Thoreau Environmental Center located Lamar County, MS. Measurements of soil CO₂ efflux (i.e., soil respiration or SR) rates (µmol m-2 sec-1) were taken across 8 field plots (4 burned, 4 unburned) before and after a prescribed fire on that occurred in May, 2012. These measurements were taken over diurnal cycles using a LICOR LI-8100A automated soil gas flux system with long term chambers. SR rates and soil temperature measurements were collected during 3 sampling periods in 2012 and 1 sampling period in 2013, which were split into seasonal sampling periods: a pre-burn, spring 2012 period (April & May), a post-burn, summer 2012 period (June, July, & August), a post-burn fall 2012 period (November), and a post-burn spring 2013 period (April & May). Overall, the unburned plots had significantly greater mean SR than the burned plots (2.57 vs. 3.57 µmol m-2 sec-1, p=0.04). After combining SR and soil temperature across seasons, soil temperature explained 59% of the variability in SR on the burned treatment (p <0.0001).
","abstract_html":"<p>This study was conducted from 2012-2013 in a 96 year old longleaf pine at the Lake Thoreau Environmental Center located Lamar County, MS. Measurements of soil CO₂ efflux (i.e., soil respiration or SR) rates (µmol m<sup>-2 </sup>sec<sup>-1</sup>) were taken across 8 field plots (4 burned, 4 unburned) before and after a prescribed fire on that occurred in May, 2012. These measurements were taken over diurnal cycles using a LICOR LI-8100A automated soil gas flux system with long term chambers. SR rates and soil temperature measurements were collected during 3 sampling periods in 2012 and 1 sampling period in 2013, which were split into seasonal sampling periods: a pre-burn, spring 2012 period (April & May), a post-burn, summer 2012 period (June, July, & August), a post-burn fall 2012 period (November), and a post-burn spring 2013 period (April & May). Overall, the unburned plots had significantly greater mean SR than the burned plots (2.57 vs. 3.57 µmol m<sup>-2 </sup>sec<sup>-1</sup>, <em>p</em>=0.04). After combining SR and soil temperature across seasons, soil temperature explained 59% of the variability in SR on the burned treatment (<em>p</em> <0.0001).</p>","abstract_has_math":false,"creators":["Flowers, Knox Lemee"],"institution":null,"degree_name":"Master of Science (MS)","degree_level":"Masters Thesis","degree_discipline":"Biological Sciences","degree_department":null,"school":null,"contributors":["Micheal A. Davis","Kevin A. Kuehn","Carl P. Qualls"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2016,"date_issued":"2016-08-01T07:00:00Z","date_published":"2016-08-01T07:00:00Z","updated_at":"2026-07-24T05:44:34Z","subjects":["Soil CO₂ Efflux Longleaf Pine Savanna","Biology","Forest Biology","Forest Management","Forest Sciences","Other Forestry and Forest Sciences"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://aquila.usm.edu/masters_theses/193","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Micheal A. Davis","Kevin A. Kuehn","Carl P. Qualls"]},{"key":"dc:creator","label":"Author","values":["Flowers, Knox Lemee"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2016-06-29T07:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Biological Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MS)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Soil CO₂ Efflux Longleaf Pine Savanna","Biology","Forest Biology","Forest Management","Forest Sciences","Other Forestry and Forest Sciences"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://aquila.usm.edu/masters_theses/193"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This study was conducted from 2012-2013 in a 96 year old longleaf pine at the Lake Thoreau Environmental Center located Lamar County, MS. Measurements of soil CO₂ efflux (i.e., soil respiration or SR) rates (µmol m-2 sec-1) were taken across 8 field plots (4 burned, 4 unburned) before and after a prescribed fire on that occurred in May, 2012. These measurements were taken over diurnal cycles using a LICOR LI-8100A automated soil gas flux system with long term chambers. SR rates and soil temperature measurements were collected during 3 sampling periods in 2012 and 1 sampling period in 2013, which were split into seasonal sampling periods: a pre-burn, spring 2012 period (April & May), a post-burn, summer 2012 period (June, July, & August), a post-burn fall 2012 period (November), and a post-burn spring 2013 period (April & May). Overall, the unburned plots had significantly greater mean SR than the burned plots (2.57 vs. 3.57 µmol m-2 sec-1, p=0.04). After combining SR and soil temperature across seasons, soil temperature explained 59% of the variability in SR on the burned treatment (p <0.0001).
"]},{"key":"dc:title","label":"Title","values":["Effects of Fire on Soil CO₂ Efflux in a Mature Longleaf Pine Forest"]}]}],"canonical_facts":{"dc:contributor":["Micheal A. Davis","Kevin A. Kuehn","Carl P. Qualls"],"dc:creator":["Flowers, Knox Lemee"],"dc:date.available":["2016-06-29T07:00:00Z"],"dc:description.abstract":["This study was conducted from 2012-2013 in a 96 year old longleaf pine at the Lake Thoreau Environmental Center located Lamar County, MS. Measurements of soil CO₂ efflux (i.e., soil respiration or SR) rates (µmol m-2 sec-1) were taken across 8 field plots (4 burned, 4 unburned) before and after a prescribed fire on that occurred in May, 2012. These measurements were taken over diurnal cycles using a LICOR LI-8100A automated soil gas flux system with long term chambers. SR rates and soil temperature measurements were collected during 3 sampling periods in 2012 and 1 sampling period in 2013, which were split into seasonal sampling periods: a pre-burn, spring 2012 period (April & May), a post-burn, summer 2012 period (June, July, & August), a post-burn fall 2012 period (November), and a post-burn spring 2013 period (April & May). Overall, the unburned plots had significantly greater mean SR than the burned plots (2.57 vs. 3.57 µmol m-2 sec-1, p=0.04). After combining SR and soil temperature across seasons, soil temperature explained 59% of the variability in SR on the burned treatment (p <0.0001).
"],"dc:identifier":["https://aquila.usm.edu/masters_theses/193"],"dc:subject":["Soil CO₂ Efflux Longleaf Pine Savanna","Biology","Forest Biology","Forest Management","Forest Sciences","Other Forestry and Forest Sciences"],"dc:title":["Effects of Fire on Soil CO₂ Efflux in a Mature Longleaf Pine Forest"],"thesis:degree_discipline":["Biological Sciences"],"thesis:degree_level":["Masters Thesis"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T05:44:34Z"}