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PNEUMATOPHORE DENSITY AND SIZE IN MANGROVES OF KARACHI, PAKISTAN
SAIFULLAH SM; ELAHI E
Abstract:
Pneumatophore density of mangrove Avicennia marina from different
locations of Karachi ranged from 56-520 m-2 with a mean value of 278m-2
+/- 135 SD, their height ranged from 2-32 cm with a mean value of 11.8
+/- 3.2 SD and maximum thickness from 2-11 mm with a mean value of 6.3
+/- 1.57 SD. Pneumatophore density was positively correlated with tree
height, tree girth and negatively with its own height. There was a
positive relationship between the density and mud content in mangrove
soil suggesting that mangroves adapt to anaerobic and water- logged
conditions by increasing their numbers and hence large surface area for
maximum aeration.
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