(Article of periodic en Anglais - 2011)

Document title

Atypical soil carbon distribution across a tropical steepland forest catena

Authors(s) and Affiliation(s)

JOHNSON K.D. (1) ; SCATENA F.N. (1) ; SILVER W.L. (2) ;
(1) Dep. of Earth and Environmental Science, Univ. of Pennsylvania, Philadelphia, ETATS-UNIS
(2) Dep. of Environmental Science, Policy and Management, Univ. of California, Berkeley, ETATS-UNIS


Soil organic carbon (SOC) in a humid subtropical forest in Puerto Rico is higher at ridge locations compared to valleys, and therefore opposite to what is commonly observed in other forested hillslope catenas. To better understand the spatial distribution of SOC in this system, plots previously characterized by topographic position, vegetation type and stand age were related to soil depth and SOC. Additional factors were also investigated, including topographically-related differences in litter dynamics and soil chemistry. To investigate the influence of litter dynamics, the Century soil organic model was parameterized to simulate the effect of substituting valley species for ridge species. Soil chemical controls on C concentrations were investigated with multiple linear regression models using iron, aluminum and clay variables


Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2011, vol. 87, no3 [pp. 391-397]

Bibliographic references : 1 p.

Collation : 2 fig., 4 tabl.



INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.07.008

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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