Please use this identifier to cite or link to this item:
Title: Foliar trait contrasts between African forest and savanna trees: Genetic versus environmental effects
Authors: Schrodt, Franziska
null, Tomas
Feldpausch, Ted R.
Saiz, Gustavo
Quesada, Carlos Alberto
Schwarz, Michael
Ishida, Francoise Yoko
Compaoré, Halidou
Diallo, Adama
Djagbletey, Gloria Djaney
Hien, Fidèle
Sonké, Bonaventure
Toedoumg, Herman
Zapfack, Louis
Hiernaux, Pierre H.Y.
Mougin, Éric
Bird, Michael I.
Grace, John
Lewis, Simon L.
Veenendaal, Elmar M.
Lloyd, Jon
Keywords: Concentration (composition)
Environmental Effect
Leaf Area Index
Limiting Factor
Soil Chemistry
Soil Nutrient
Transition Zone
Water Availability
West Africa
Issue Date: 2015
metadata.dc.publisher.journal: Functional Plant Biology
metadata.dc.relation.ispartof: Volume 42, Número 1, Pags. 63-83
Abstract: Variations in leaf mass per unit area (Ma) and foliar concentrations of N, P, C, K, Mg and Ca were determined for 365 trees growing in 23 plots along a West African precipitation gradient ranging from 0.29 to 1.62m a-1. Contrary to previous studies, no marked increase in Ma with declining precipitation was observed, but savanna tree foliar [N] tended to be higher at the drier sites (mass basis). Generally, Ma was slightly higher and [N] slightly lower for forest vs savanna trees with most of this difference attributable to differences in soil chemistry. No systematic variations in [P], [Mg] and [Ca] with precipitation or between trees of forest vs savanna stands were observed. We did, however, find a marked increase in foliar [K] of savanna trees as precipitation declined, with savanna trees also having a significantly lower [K] than those of nearby forest. These differences were not related to differences in soil nutrient status and were accompanied by systematic changes in [C] of opposite sign. We suggest an important but as yet unidentified role for K in the adaption of savanna species to periods of limited water availability; with foliar [K] being also an important factor differentiating tree species adapted to forest vs savanna soils within the 'zone of transition' of Western Africa. © CSIRO 2015.
metadata.dc.identifier.doi: 10.1071/FP14040
Appears in Collections:Artigos

Files in This Item:
File Description SizeFormat 
artigo-inpa.pdf11,47 MBAdobe PDFThumbnail

This item is licensed under a Creative Commons License Creative Commons