1.
Oecologia
; 54(2): 141-148, 1982 Aug.
Artigo
em Inglês
| MEDLINE
| ID: mdl-28311421
RESUMO
Sulfur (S) cycling in a chestnut oak forest on Walker Branch Watershed, Tennessee, was dominated by geochemical processes involving sulfate. Even though available SO 42- was present far in excess of forest nutritional requirements, the ecosystem as a whole accumulated â¼60% of incoming SO4-S. Most (90%) of this accumulation occurred by SO 42- adsorption in sesquioxide-rich subsurface soils, with a relatively minor amount accumulating and cycling as SO 42- 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.