Infodoc : Sciences, Techniques et Culture

Recherche avancée

A-
A
A+

Accueil

Adresse

Infodoc : Réseau des bibliothèques et centres de documentation d'AgroParisTech

France

contact

Retourner à l'écran de recherche

Array
(
    [TITRE] => <b>Type de document : </b>
    [TITRE_CLEAN] => Type de document
    [OPAC_SHOW] => 1
    [TYPE] => list
    [AFF] => Tir&eacute; &agrave; part
    [ID] => 4
    [NAME] => cp_typdoc
    [DATATYPE] => integer
    [VALUES] => Array
        (
            [0] => 7
        )

)

Titre :	Tree-grass interactions in savannas Ajouter au panier
Auteur(s) :	R.J. Scholes S.R. Archer
Type de document :	Tiré à part
Sujets :	Savane ; Arbuste ; Herbage ; Fourrage ; Parcours ; Incendie ; Compétition végétale
Résumé :	Savannas occur where trees and grasses interact to create a biome that is neither grassland nor forest. Woody and gramineous plants interact by many mechanisms, some negative (competition) and some positive (facilitation). The strenght and sign of the interaction varies in both time and space, allowing a rich array of possible outcomes but no universal predictive model. Simple models of coexistence of trees and grasses, based on separation in rooting depth, are theoretically and experimentally inadequate. Prediction of the consequences of manipulating tree biomass through clearing further requires an understanding of how trees modify light, water, and nutrient environments of grasses.
Date de publication :	1997
Format :	p. 517-544
Note(s) :	Annu. Rev. Ecol. Syst. 28
Langue(s) :	Anglais
Lien vers la notice :	https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=128201