Show simple item record

dc.contributor.authorDevine, Scott
dc.date.accessioned2014-03-04T16:23:37Z
dc.date.available2014-03-04T16:23:37Z
dc.date.issued2009-05
dc.identifier.otherdevine_scott_m_200905_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/devine_scott_m_200905_ms
dc.identifier.urihttp://hdl.handle.net/10724/25431
dc.description.abstractIn the Piedmont of Georgia, a long-term experiment between conventional (CT) and no-till (NT) agriculture has provided insight into the effects of tillage on biogeochemical cycles and soil structure. In this study, adjacent land undergoing forest succession (FS) was added to the agricultural comparison to assess effects on soil organic carbon (SOC), acidification, and aggregation. Three decades of NT and FS have led to similar contents of SOC that exceeds the content under the CT profile (0-2 m) by 20%. Accumulation of carbon in forest biomass relative to CT or NT vastly exceeds SOC differences. Forest uptake of exchangeable soil cations and agroecosystem fertilization explain a deep soil acidification that has occurred under FS. Compared to CT, aggregate stability has improved to a depth of 5 cm under NT and to 28 cm under FS. Forest soil processes can produce water-stable aggregates within a year that may be linked to SOC stabilization.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectagroecosystem
dc.subjectno-till
dc.subjectconventional tillage
dc.subjectforest succession
dc.subjectsoil organic matter
dc.subjectparticulate organic matter
dc.subjectcarbon
dc.subjectacidification
dc.subjectaggregates
dc.subjectbiogeochemical
dc.titleSoil change after three decades of conventional till, no-till, and forest succession in the Piedmont of Georgia, USA
dc.typeThesis
dc.description.degreeMS
dc.description.departmentDaniel B. Warnell School of Forestry and Natural Resources
dc.description.majorForest Resources
dc.description.advisorDaniel Markewitz
dc.description.committeeDaniel Markewitz
dc.description.committeeDavid Radcliffe
dc.description.committeePaul Hendrix


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record