Fire suppression and ecosystem carbon storage
David Tilman,Peter B. Reich,Hope Phillips,Mary Menton,Ami Patel,Erin Vos,David W. Peterson,Johannes M. H. Knops +7 more
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A 35-year controlled burning experiment in Minnesota oak savanna showed that fire frequency had a great impact on ecosystem carbon (C) stores, with most carbon stored in woody biomass.Abstract:
A 35-year controlled burning experiment in Minnesota oak savanna showed that fire frequency had a great impact on ecosystem carbon (C) stores. Specifically, compared to the historical fire regime, fire suppression led to an average of 1.8 Mg·ha−1·yr−1 of C storage, with most carbon stored in woody biomass. Forest floor carbon stores were also significantly impacted by fire frequency, but there were no detectable effects of fire suppression on carbon in soil and fine roots combined, or in woody debris. Total ecosystem C stores averaged ∼110 Mg/ha in stands experiencing presettlement fire frequencies, but ∼220 Mg/ha in stands experiencing fire suppression. If comparable rates of C storage were to occur in other ecosystems in response to the current extent of fire suppression in the United States, fire suppression in the USA might account for 8–20% of missing global carbon.read more
Citations
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Characterizing interannual variations in global fire calendar using data from Earth observing satellites
César Carmona‐Moreno,Alan Belward,Jean-Paul Malingreau,Andrew Hartley,Maria Garcia‐Alegre,Mikhail Antonovskiy,Victor Buchshtaber,Victor Pivovarov +7 more
TL;DR: Comparison with independently available information on fire locations and timing suggest that while the time-series cannot yet be used to make accurate and quantitative estimates of global burnt area it does provide a reliable estimate of changes in location and season of burning on the global scale.
Journal ArticleDOI
Changes in aboveground primary production and carbon and nitrogen pools accompanying woody plant encroachment in a temperate savanna
R. Flint Hughes,Steven R. Archer,Gregory P. Asner,Carol A. Wessman,C.R. McMurtry,Jim A. Nelson,R. James Ansley +6 more
TL;DR: In this article, the authors found no evidence of an asymptote in trajectories of C and N accumulation or ANPP on either soil type even following 68 years of stand development.
Journal ArticleDOI
Mangrove Range Expansion Rapidly Increases Coastal Wetland Carbon Storage
Cheryl L. Doughty,J. Adam Langley,Wayne S. Walker,Ilka C. Feller,Ronald Schaub,Samantha K. Chapman +5 more
TL;DR: In this article, the authors quantify current carbon stocks in ecotonal wetlands across gra- dients of marsh-to mangrovedominance, and use unique chronological maps of vegetation cover to estimate C stock changes from 2003 to 2010.
Journal ArticleDOI
Woody Plant Encroachment by Juniperus virginiana in a Mesic Native Grassland Promotes Rapid Carbon and Nitrogen Accrual
Duncan C. McKinley,John M. Blair +1 more
TL;DR: In this article, the potential changes in soil N availability, leaf-level photosynthesis, and major ecosystem C and N pools were assessed in situ over two years, and changes in labile soil organic pools were determined.
Journal ArticleDOI
Assessment of soil organic carbon in semi-arid Sudan using GIS and the CENTURY model
Jonas Ardö,Lennart Olsson +1 more
TL;DR: In this paper, a spatially explicit database of climate, land cover and soil texture was compiled for a 262,000 km(2) region in semi-arid Sudan, which is characterized by low input cultivation of millet, sorghum and sesame combined with livestock grazing.
References
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