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Titolo:
A landscape level comparison of pre-European settlement and current soil carbon content of a forested landscape in upper Michigan
Autore:
Owens, KE; Reed, DD; Londo, AJ; Maclean, AL; Mroz, GD;
Indirizzi:
Michigan31echnol Univ, UJ Noblet Sch Forestry & Wood Prod, Houghton, MI 499 Michigan Technol Univ Houghton MI USA 49931 & Wood Prod, Houghton, MI 499
Titolo Testata:
FOREST ECOLOGY AND MANAGEMENT
fascicolo: 2-3, volume: 113, anno: 1999,
pagine: 179 - 189
SICI:
0378-1127(19990125)113:2-3<179:ALLCOP>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
NORTHERN HARDWOOD STANDS; DISSOLVED ORGANIC-CARBON; UNITED-STATES; LAKE STATES; OAK FOREST; STORAGE; FLOOR; TEMPERATURE; SUCCESSION; NITROGEN;
Keywords:
mineral soil; carbon storage; geographic information systems;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Reed, DD Michigan,Technol Univ, UJ Noblet Sch Forestry & Wood Prod, 1400 Townsend Dr Michigan Technol Univ 1400 Townsend Dr Houghton MI USA 49931 d Dr
Citazione:
K.E. Owens et al., "A landscape level comparison of pre-European settlement and current soil carbon content of a forested landscape in upper Michigan", FOREST ECOL, 113(2-3), 1999, pp. 179-189

Abstract

A large forested landscape (18 640 ha) located in Michigan's central UpperPeninsula was examined to estimate current and pre-European mineral soil carbon (C) content. Utilizing current forest stand information and pre-European settlement forest data, a landscape level soil C estimate was made for each time period and the change in soil C over the 150-year interval was quantified. Soil, forest type, and age class information were entered into a geographical information system (GIS); high medium, and low C levels were assigned to soils based on forest type and age class groupings. Using organic matter data from soil surveys of the area, a range of mineral soil C values was determined for each soil mapping unit and vegetation combination, and a percent C value was estimated based on previously assigned C levels. Estimates of average percent C were calculated for both current and pre-European landscapes to be 9.7% and 11.7%, respectively. Overall, there appears to be a decrease in soil C content since European settlement as a result of changes in forest cover and land use. Due to the strong relationship between forest type and soil C content, an increase of urban/brush areas, and a shift from hemlock and conifer forest types to hardwoods and mixed pine/hardwood forests since European settlement, there has been a reduction of the average landscape level soil C on a g/m(2) basis. The net reduction in mineral soil C content on this landscape is estimated to be approximately 0.3 to0.8 Tg C (in the upper 10-25 cm of mineral soil) over the 150 years since European settlement of the area. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 03:21:17