title: Cycling of organic and inorganic sulphur in a chestnut oak forest.
abstract: Sulfur (S) cycling in a chestnut oak forest on Walker Branch Watershed, Tennessee, was dominated by geochemical processes involving sulfate. Even though available SO42-was present far in excess of forest nutritional requirements, the ecosystem as a whole accumulated ∼60% of incoming SO4-S. Most (90%) of this accumulation occurred by SO42-adsorption in sesquioxide-rich subsurface soils, with a relatively minor amount accumulating and cycling as SO42-within vegetative components. Organic sulfates are thought to constitute a large proportion of total S in surface soils, also, and to provide a pool of readily mineralized available S within the ecosystem.
authors.affiliation: Environmental Sciences Division, Oak Ridge National Laboratory, 37830, Oak Ridge, Tennessee, USA.
authors.forename: D W
authors.initials: DW
authors.lastname: Johnson
authors.affiliation: Environmental Sciences Division, Oak Ridge National Laboratory, 37830, Oak Ridge, Tennessee, USA.
authors.forename: G S
authors.initials: GS
authors.lastname: Henderson
authors.affiliation: Environmental Sciences Division, Oak Ridge National Laboratory, 37830, Oak Ridge, Tennessee, USA.
authors.forename: D D
authors.initials: DD
authors.lastname: Huff
authors.affiliation: Environmental Sciences Division, Oak Ridge National Laboratory, 37830, Oak Ridge, Tennessee, USA.
authors.forename: S E
authors.initials: SE
authors.lastname: Lindberg
authors.affiliation: Environmental Sciences Division, Oak Ridge National Laboratory, 37830, Oak Ridge, Tennessee, USA.
authors.forename: D D
authors.initials: DD
authors.lastname: Richter
authors.affiliation: Environmental Sciences Division, Oak Ridge National Laboratory, 37830, Oak Ridge, Tennessee, USA.
authors.forename: D S
authors.initials: DS
authors.lastname: Shriner
authors.affiliation: Environmental Sciences Division, Oak Ridge National Laboratory, 37830, Oak Ridge, Tennessee, USA.
authors.forename: D E
authors.initials: DE
authors.lastname: Todd
authors.affiliation: Forestry Commission of N.S.W., Beeroft, P.O. Box 100, Sydney, N.S.W., Australia.
authors.forename: J
authors.initials: J
authors.lastname: Turner