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Soil respiration from four aggrading forested watersheds measured over a quarter centuryAuthor(s): David C. Coleman; Mark D. Hunter; John Hutton; Steven Pomeroy; Lloyd Swift
Source: Forest Ecology and Management 157 (2002) 247-253
Publication Series: Miscellaneous Publication
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DescriptionSoil respiration was measured in four aggrading, forested second-growth watersheds in the southern Appalachians using an identical method (alkali absorption) at intervals 23 and 24 years apart. Seasonal trends were similar, with mid-summer maxima and winter minima. Amounts of carbon dioxide evolved were higher in the recent measurements (1995) compared to the earlier ones (1971-1972), despite similar soil water and temperature regimes. The overall trend across all four watersheds may reflect changes in organic matter levels and subsequent root growth.
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CitationColeman, David C.; Hunter, Mark D.; Hutton, John; Pomeroy, Steven; Swift, Lloyd, Jr. 2002. Soil respiration from four aggrading forested watersheds measured over a quarter century. Forest Ecology and Management 157 (2002) 247-253
KeywordsSoil respiration, Carbon balance, Soii organic matter, Aggrading ecosystems
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