Environmental Engineering Reference
In-Depth Information
Fig. 6.6
Sampling stations in three sectors of Indian
Sundarbans; the stations in the western sector of
Indian Sundarbans are marked with
the stations in the central and eastern sectors are
represented with
triangular
and
circular
signs,
square
marks, and
respectively
8.34
8.32
8.30
8.28
8.26
8.24
Western
sector
Central
sector
8.22
8.20
8.18
Eastern
sector
8.16
8.14
Fig. 6.7
Decreasing trend of aquatic pH in Indian Sundarbans
(Fig.
6.7
), which is 0.0047, 0.0043 and 0.0026
unit/year, respectively. In this context, it is
extremely interesting to note that decrease in pH
(both gross and rate) is lowest in eastern sector
compared to other two sectors. This is mainly
because the eastern Indian Sundarbans is mostly
under Reserve Forest areas and mangroves thrive
in this region without any anthropogenic pres-
sure. These halophytes absorb carbon dioxide
from the atmosphere and the water column and
