期刊名称：Science et changements planétaires / Sécheresse
印刷版ISSN：1147-7806
电子版ISSN：1777-5922
出版年度：2008
卷号：19
期号：2
页码：123-128
DOI：10.1684/sec.2008.0127
出版社：John Libbey Eurotext
摘要：Figures See all figures Authors Farah Ben Salem , Azaiez Ouled Belgacem , Mohamed Neffati Laboratoire d’écologie pastorale, institut des régions arides, route Djorf, km 22, 4119 Médenine, Tunisie Key words: arid zone, root growth, shrub, Tunisia DOI : 10.1684/sec.2008.0127 Page(s) : 123-8 Published in: 2008 The present study was carried out to clarify the root dynamics of three local shrubs (Acacia raddiana Savi., Ceratonia siliqua L. and Juniperus phoenicea L.) of the Tunisian arid zone presenting high economic and ecological interest in southern Tunisia. Plants were cultivated in rhizotrons. The main results show rapid root development of the three species from the first months following germination (month of November), even though the growth of the Acacia raddiana rooting system was negatively influenced by the low winter temperatures. Such behaviour constitutes, in natural conditions, one of the adaptive characteristics to hard climatic conditions of the species studied and should be, therefore, taken into account when raising seedlings in nurseries.
