Growing soil organic carbon in dryland agricultural systems

Spatially governed climate factors dominate management in determining the quantity and distribution of soil organic carbon in dryland agricultural systems

Few studies describe the primary drivers influencing soil organic carbon (SOC) stocks and the distribution of carbon (C) fractions in agricultural systems from semi-arid regions; yet these soils comprise one fifth of the global land area. Here we identified the primary drivers for changes in total SOC and associated particulate (POC), humus (HOC) and resistant (ROC) organic C fractions for 1347...

Management of Dryland Cropping Systems in the U.S. Great Plains: Effects on Soil Organic Carbon

The expansion and intensification of agroecosystems worldwide has significantly affected the environment at multiple spatial scales (Matson et al., 1997). Agroecosystem effects on atmospheric constituents have altered local, regional, and global environmental quality through windblown soil (Zhang et al., 2001) and emission of particulate matter, reactive N (e.g., NH3 and NOx), volatile organic ...

Procedures for Initializing Soil Organic Carbon Pools in the DSSAT - CENTURY Model for Agricultural Systems Soil

69 Soil Sci. Soc. Am. J. 75:69–78 Posted online 30 Nov. 2010 doi:10.2136/sssaj2010.0115 Received 11 Mar. 2010. *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, reco...

Labile soil organic carbon and nitrogen within a gradient of dryland agricultural land-use intensity in Wyoming, USA

Identifying soil organic carbon fractions sensitive to agricultural management practices