228
Species
Stations
A GB (tonnes/ha)
AGN (tonnes/ha)
N itrogen
sequestration =
ΔAGN/Δt
(tonnes/ha/yr)
1 Year 11 Year 1 Year
11 Year
Avicennia
officinalis
Muriganga
0.428
42.008
0.0062
(1.45%)
0.5755
(1.37%)
0.0569
Saptamukhi
0.574
44.116
0.0085
(1.48%)
0.5867
(1.33%)
0.0578
Jambu Island
0.420
49.004
0.0066
(1.56%)
0.6322
(1.29%)
0.0626
Lothian
Island
0.447
46.137
0.0068
(1.53%)
0.6136
(1.33%)
0.0607
Sagar Island
0.451
46.220
0.0069
(1.52%)
0.6240
(1.35%)
0.0617
Prentice
Island
0.415
48.217
0.0064
(1.55%)
0.6606
(1.37%)
0.0654
Thakuran
0.970
68.995
0.0154
(1.59%)
0.9107
(1.32%)
0.0895
Dhulibasani
0.649
75.116
0.0104
(1.60%)
1.0441
(1.39%)
0.1034
Chulkathi
0.505
72.553
0.0083
(1.64%)
0.9795
(1.35%)
0.0971
Goashaba
0.672
70.134
0.0103
(1.54%)
0.9468
(1.37%)
0.0936
Matla
0.859
73.228
0.0135
(1.57%)
1.0252
(1.40%)
0.1012
Pirkhali
0.683
75.004
0.0104
(1.53%)
1.0126
(1.35%)
0.1002
Arbesi
0.272
42.819
0.0039
(1.44%)
0.5652
(1.32%)
0.0561
Jhila
0.283
36.208
0.0040
(1.42%)
0.4707
(1.30%)
0.0467
Harinbhanga
0.143
37.191
0.0021
(1.49%)
0.4798
(1.29%)
0.0478
Khatuajhuri
0.297
40.120
0.0042
(1.43%)
0.5135
(1.28%)
0.0509
Chamta
0.140
38.178
0.0020
(1.45%)
0.5001
(1.31%)
0.0498
Chandkhali
0.283
41.227
0.0040
(1.41%)
0.5566
(1.35%)
0.0553
Table 7.10 Nitrogen sequestration by Avicennia officinalis inhabiting Indian Sundarbans
7 Mangroves: Unique Sinks of Carbon and Nitrogen