Carbon Stores and Biogeochemical Properties of Soils under Black Spruce Forest , Alaska Forest , Range , & Wildland Soils
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چکیده
969 Soil Sci. Soc. Am. J. 74:969–978 Published online 17 Mar. 2010 doi:10.2136/sssaj2009.0152 SNRAS Publ. no. 2009-001. Received 22 Apr. 2009. *Corresponding author ([email protected]). © Soil Science Society of America, 5585 Guilford Rd., Madison WI 53711 USA All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Carbon Stores and Biogeochemical Properties of Soils under Black Spruce Forest, Alaska Forest, Range, & Wildland Soils
منابع مشابه
Quantifying fire severity, carbon, and nitrogen emissions in Alaska's boreal forest.
The boreal region stores a large proportion of the world's terrestrial carbon (C) and is subject to high-intensity, stand-replacing wildfires that release C and nitrogen (N) stored in biomass and soils through combustion. While severity and extent of fires drives overall emissions, methods for accurately estimating fire severity are poorly tested in this unique region where organic soil combust...
متن کاملSoils Associated with Biotic Activity on Frost Boils in Arctic Alaska Forest , Range & Wildland Soils
Soil Sci. Soc. Am. J. 76:2265–2277 doi:10.2136/sssaj2012.0064 Received 21 Feb. 2012. *Corresponding author ([email protected]). © Soil Science Society of America, 5585 Guilford Rd., Madison WI 53711 USA All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information stora...
متن کاملA dynamic organic soil biogeochemical model for simulating the effects of wildfire on soil environmental conditions and carbon dynamics of black spruce forests
[1] Ecosystem models have not comprehensively considered how interactions among fire disturbance, soil environmental conditions, and biogeochemical processes affect ecosystem dynamics in boreal forest ecosystems. In this study, we implemented a dynamic organic soil structure in the Terrestrial Ecosystem Model (DOS‐TEM) to investigate the effects of fire on soil temperature, moisture, and ecosys...
متن کاملThermokarst rates intensify due to climate change and forest fragmentation in an Alaskan boreal forest lowland.
Lowland boreal forest ecosystems in Alaska are dominated by wetlands comprised of a complex mosaic of fens, collapse-scar bogs, low shrub/scrub, and forests growing on elevated ice-rich permafrost soils. Thermokarst has affected the lowlands of the Tanana Flats in central Alaska for centuries, as thawing permafrost collapses forests that transition to wetlands. Located within the discontinuous ...
متن کاملA process-oriented model of N2O and NO emissions from forest soils 2. Sensitivity analysis and validation
The process-oriented model PnET-N-DNDC describing biogeochemical cycling of Cand N and N-trace gas fluxes (N2O and NO) in forest ecosystems was tested for its sensitivity to changes in environmental factors (e.g., temperature, precipitation, solar radiation, atmospheric N-deposition, soil characteristics). Sensitivity analyses revealed that predicted N-cycling and N-trace gas emissions varied w...
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