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Gradient analysis of canal vegetation in Nile delta region
Author(s) -
Shaltout K. H.,
ElSheikh M. A.
Publication year - 1991
Publication title -
feddes repertorium
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.24
H-Index - 25
eISSN - 1522-239X
pISSN - 0014-8962
DOI - 10.1002/fedr.19911020714
Subject(s) - delta , bimodality , nile delta , gradient analysis , vegetation (pathology) , environmental gradient , salinity , ecology , environmental science , organic matter , soil salinity , soil science , biology , physics , habitat , medicine , ordination , pathology , quantum mechanics , astronomy , galaxy , water resource management
The present study aims at evaluating the behaviour of 15 common weeds, distributed along the net of canals and drains in the Middle Delta region, in relation to environmental gradients of some soil variables. Some species have significant simple correlations (either positive or negative) with certain soil variables (salinity, CaCO 3 , nitrogen and organic matter). Some other species have monomodal behaviours along some soil gradients, while all the examined species have bimodal behaviours along, at least, one soil gradient. The possible reasons that could be lead to bimodality were discussed.