FIRE SUPPRESSION AND ECOSYSTEM CARBON STORAGE
作者： David Tilman , Peter Reich , Hope Phillips , Mary Menton , Ami Patel
DOI: 10.1890/0012-9658(2000)081[2680:FSAECS]2.0.CO;2
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摘要: 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 regime, suppression led an average of 1.8 Mg·ha−1·yr−1 C storage, with most stored woody biomass. Forest floor stores were also significantly impacted by frequency, but there no detectable effects soil and fine roots combined, or debris. Total averaged ∼110 Mg/ha stands experiencing presettlement frequencies, ∼220 suppression. If comparable rates storage occur other ecosystems response current extent United States, USA might account for 8–20% missing global carbon.
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