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
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Functional Groups Based on Leaf Physiology: Are They Spatially and Temporally Robust
Tammy E. Foster,J. Renée Brooks +1 more
TL;DR: A life form classification including parasites was determined to be a good indicator of the physiological processes of scrub species and would be a useful method of grouping species for scaling physiological processes to the ecosystem level.
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Effects of repeated fires on ecosystem C and N stocks along a fire induced forest/grassland gradient
Chih-Hsin Cheng,Yung-Sheng Chen,Yu-Hsuan Huang,Chyi-Rong Chiou,Chau-Chih Lin,Oleg V. Menyailo +5 more
TL;DR: In this article, the effects of repeated fires on ecosystem carbon and nitrogen stocks were examined along a fire-induced forest/grassland gradient wherein the fire events varied from an unburned forest to repeatedly burned grassland.
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Carbon and Water Tradeoffs in Conversions to Forests and Shrublands
Robert B. Jackson,Kathleen A. Farley,William A. Hoffmann,Esteban G. Jobbágy,Rebecca L. McCulley +4 more
TL;DR: In this article, the potential benefits of biological sequestration programs on land, some of the uncertainties surrounding them, and some unintentional consequences if they are initiated broadly are examined, including a more complete biogeochemical accounting of the consequences.
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Soil Carbon Sequestration in Traditional Farming in Sudanese Dry Lands
Jonas Ardö,Lennart Olsson +1 more
TL;DR: In this paper, the impact of fallow periods on soil organic carbon in semiarid subsistence agroecosystems on sandy and poor soils in Kordofan, Sudan was investigated.
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Legacies of Prehistoric Agricultural Practices Within Plant and Soil Properties Across an Arid Ecosystem
Sharon J. Hall,Jolene E. Trujillo,Dana Nakase,Colleen Strawhacker,Melissa Kruse-Peeples,Hoski Schaafsma,John M. Briggs +6 more
TL;DR: In this paper, the types of ancient human activities that leave long-term ecological legacies in aridlands are those that fundamentally alter soil properties that regulate the timing and supply of water.
References
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Biogeochemistry : An Analysis of Global Change
TL;DR: In this paper, the authors present a perspective of the global cycle of nitrogen and phosphorous, the global water cycle, and the global sulfur cycle from a global point of view.
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Robert K. Dixon,Allen M. Solomon,Sandra Brown,Richard A. Houghton,M. C. Trexier,J. Wisniewski +5 more
TL;DR: Slowing deforestation, combined with an increase in forestation and other management measures to improve forest ecosystem productivity, could conserve or sequester significant quantities of carbon.
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TL;DR: The terrestrial biosphere plays an important role in the global carbon cycle as mentioned in this paper, which is the fluxes of carbon among four main reservoirs: fossil carbon, the atmosphere, the oceans, and the terrestrial Biosphere.
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TL;DR: The rates at which lands in the United States were cleared for agriculture, abandoned, harvested for wood, and burned were reconstructed from historical data for the period 1700-1990 and used in a terrestrial carbon model to calculate annual changes in the amount of carbon stored in terrestrial ecosystems, including wood products.
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