Loading content, please wait..
loading..
Logo
Version 3.20
or
Publication Type J
Authors Gomaa, N. H.
Title Soil seed bank in different habitats of the Eastern Desert of Egypt
Source Saudi Journal of Biological Sciences
Author Keywords Desert Egypt Seed bank Species diversity mountain grasslands central argentina spatial-patterns life-history saudi-arabia vegetation communities establishment restoration germination
Abstract The floristic composition and species diversity of the germinable soil seed bank were studied in three different habitats (desert salinized land, desert wadi, and reclaimed land) in the Eastern Desert of Egypt. Moreover, the degree of similarity between the seed bank and the above-ground vegetation was determined. The seed bank was studied in 40 stands representing the three habitats. Ten soil samples (each 25 x 20 cm and 5 cm depth) were randomly taken per stand. The seed bank was investigated by the seedling emergence method. Some 61 species belonging to 21 families and 54 genera were identified in the germinable seed bank. The recorded species include 43 annuals and 18 perennials. Ordination of stands by Detrended Correspondence Analysis (DCA) indicates that the stands of the three habitats are markedly distinguishable and show a clear pattern of segregation on the ordination planes. This indicates variations in the species composition among habitats. The results also demonstrate significant associations between the floristic composition of the seed bank and edaphic factors such as CaCO3, electrical conductivity, organic carbon and soil texture. The reclaimed land has the highest values of species richness, Shannon-index of diversity and the density of the germinable seed bank followed by the habitats of desert wadi and desert salinized land. Motyka's similarity index between the seed bank and the above-ground vegetation is significantly higher in reclaimed land (75.1%) compared to desert wadi (38.4%) and desert salinized land (36.5%). (C) 2012 King Saud University. Production and hosting by Elsevier B. V. All rights reserved.
Author Address Beni Suef Univ, Fac Sci, Dept Bot, Bani Suwayf, Egypt. Gomaa, NH (reprint author), Beni Suef Univ, Fac Sci, Dept Bot, Bani Suwayf, Egypt. nhgomaa@yahoo.com
ISSN 1319-562X
ISBN 1319-562X
Publication Date Apr
Year Published 2012
Volume 19
Issue 2
Beginning Page 211-220
Digital Object Identifier (DOI) 10.1016/j.sjbs.2012.01.002
Unique Article Identifier WOS:000302288500011
Plants associated with this reference

LEGAL NOTICES — This website is protected by Copyright © The University of Sussex, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019. The eHALOPH database is protected by Database Right and Copyright © The University of Sussex and other contributors, 2006, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019. This database is based on an earlier work by James Aronson.
THIS WEBSITE AND THIS DATABASE ARE PROVIDED ON AN "AS IS" BASIS, AND YOU USE THEM AND RELY ON THEM AT YOUR OWN RISK.

Contact email: halophytes@sussex.ac.uk
Credits – Tim Flowers, Joaquim Santos, Moritz Jahns, Brian Warburton, Peter Reed