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Publication Type J
Authors Joshi, H. and M. Ghose
Title Forest structure and species distribution along soil salinity and pH gradient in mangrove swamps of the Sundarbans
Source Tropical Ecology
Abstract An analysis has been made in the Sundarbans mangroves to relate the community structure and distribution of species with soil salinity and pH gradients. Soil salinity (13.0 to 31.2 ppt) decreased with increasing distance from the tidal coast but no such trend was noticed in soil pH (7.0 to 7.9). Frequency of tidal inundation seemed to affect soil salinity. Acanthus ilicifolius, Avicennia alba and A. marina dominate the sites having regular diurnal tidal inundation. Maximum complexity index was noted on the least saline zone. Ecological group classification indicates that Avicennia marina and A. officinalis can tolerate wide range of soil salinity while Aegiceras corniculatum, Ceriops decandra, Dalbergia spinosa, Derris trifoliata and Excoecaria agallocha are restricted to low salinity areas. Most species had an optimum pH range except Avicennia marina, which occurred in varied pH conditions. Acanthus ilicifolius was relatively insensitive to pH and salinity gradient due to its wide ecological amplitudes.
ISSN 0564-3295
ISBN 0564-3295
Publication Date Winter
Year Published 2003
Volume 44
Issue 2
Beginning Page 195-204
Unique Article Identifier BCI:BCI200400247821
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