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(Article of periodic en Anglais - 2009)

Document title

Amazonian floodplains harbour minerotrophic and ombrotrophic peatlands

Authors(s) and Affiliation(s)

LÄHTEENOJA O. (1) ; RUOKOLAINEN K. (1) ; SCHULMAN L. (2) ; ALVAREZ J. (3) ;
(1) Dep. Biology, Univ., Turku, FINLANDE
(2) Finnish Museum of Natural History, Botanic Garden, Univ., Helsinki, FINLANDE
(3) Inst. de Investigaciones de la Amazoni Peruana (IIAP), Iquitos, PEROU

Abstract

The AA. quantify the horizontal distribution of 4 important plant nutrients (Ca, Mg, K and P) in 5 peatland sites located in Peruvian Amazonia and the vertical distribution of these nutrients in one of the sites. With this data as well as topography measurements of the peat deposit from one of the sites, they showed that minerotrophic and ombrotrophic peatlands can be detected in Amazonian floodplains. The nutrient-poor ombrotrophic bogs receive nutrients only from atmospheric deposition because of their thick peat layer and convex topography, while the minerotrophic swamps are periodically covered by nutrient-rich floodwater and/or receive nutrient input from surface waters or from groundwater with capillary rise. The existence of such peatlands in the Amazonian lowlands increases the regional habitat diversity and availability of palaeoecological information and probably has implications also for the hydrological dynamics, water quality, and carbon dynamics of the area

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2009, vol. 79, no2 [pp. 140-145]

Bibliographic references : 1 p.

Collation : 3 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2009.06.006

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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