Climatic controls on carbon storage in seasonally frozen soils
نویسندگان
چکیده
منابع مشابه
Weathering Controls on Mechanisms of Carbon Storage in Grassland Soils
On a sequence of soils developed under similar vegetation, temperature and precipitation conditions, but with variations in mineralogical properties, we use organic carbon and C inventories to examine mineral protection of soil organic carbon. In these soils, C data indicates that the creation of slow-cycling carbon can be modeled as occurring through reaction of organic ligands with Al and Fe ...
متن کاملControls over carbon storage and turnover in high-latitude soils
Despite the importance of Arctic and boreal regions in the present carbon cycle, estimates of annual high-latitude carbon ̄uxes vary in sign and magnitude. Without accurate estimates of current carbon ̄uxes from Arctic and boreal ecosystems, predicting the response of these systems to global change is daunting. A number of factors control carbon turnover in high-latitude soils, but because they...
متن کاملModelling of cryogenic processes in permafrost and seasonally frozen soils
This paper investigates the thermo-hydro-mechanical (THM) behaviour of soils subjected to seasonal temperature variations in both permafrost and seasonally frozen conditions. Numerical modelling of soil freezing and ice segregation processes is presented, and compared against small-scale physical modelling experiments. The coupled THM model presented, which is solved by way of a transient finit...
متن کاملStability of black carbon in soils across a climatic gradient
[1] The recalcitrant properties of black carbon (BC) grant it to be a significant pool of stable organic C (OC) in soils. Up to now, however, the longevity of BC under different climates is still unclear. In this study, we used BC samples from historical charcoal blast furnace sites to examine the stability of BC across a climatic gradient of mean annual temperatures (MAT) from 3.9 to 17.2 C. T...
متن کاملDetermining Water Retention in Seasonally Frozen Soils Using Hydra Impedance Sensors
SSSAJ: Volume 76: Number 1 • January–February 2012 Soil Sci. Soc. Am. J. 76:36–50 Posted online 11 Nov. 2011 doi:10.2136/sssaj 2011.0222 Received 15 June 2011 *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...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 2013
ISSN: 0096-3941
DOI: 10.1002/2013eo220006