Table 3. Species composition and structural features of all stems ≥1.27 cm dbh in four mangrove forests in Trang, southern Thailand. CF: community forest, SF: state forest. #/ha: number of trees per hectare, RA: relative abundance, BA/ha: basal area per hectare (m2), RBA: relative basal area. Species that were present but with a BA or RBA of less than 0.01 are listed as 0.00.
| |
| |
|
|
Landward mangrove |
|
Seaward mangrove |
| |
|
|
Tong Tasae (CF) |
|
Tab Jak (SF) |
|
Laem Makham (CF) |
|
To Ban (SF) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Species |
#/ha |
RA |
BA/ha |
RBA |
|
#/ha |
RA |
BA/ha |
RBA |
|
#/ha |
RA |
BA/ha |
RBA |
|
#/ha |
RA |
BA/ha |
RBA |
| |
|
Amoora cucullata |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5 |
0.08 |
0.00 |
0.03 |
|
Avicennia alba |
23 |
1.66 |
0.75 |
0.96 |
|
127 |
4.11 |
1.81 |
11.73 |
|
41 |
0.84 |
1.15 |
5.21 |
|
|
|
|
|
|
Avicennia marina |
|
|
|
|
|
32 |
1.03 |
1.21 |
7.88 |
|
|
|
|
|
|
5 |
0.08 |
0.36 |
3.69 |
|
Avicennia officinalis |
|
|
|
|
|
|
|
|
|
|
136 |
2.8 |
0.11 |
0.5 |
|
9 |
0.16 |
0.27 |
2.75 |
|
Bruguiera cylindrica |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
68 |
1.21 |
0.16 |
1.67 |
|
Bruguiera gymnorrhiza |
|
|
|
|
|
9 |
0.29 |
0.07 |
0.48 |
|
|
|
|
|
|
|
|
|
|
|
Bruguiera parviflora |
|
|
|
|
|
18 |
0.59 |
0.07 |
0.46 |
|
259 |
5.32 |
0.44 |
2 |
|
73 |
1.29 |
0.13 |
1.29 |
|
Bruguiera sexangula |
50 |
3.64 |
0.17 |
0.22 |
|
386 |
12.48 |
0.63 |
4.06 |
|
|
|
|
|
|
|
|
|
|
|
Caesalpinia bonduc |
9 |
0.66 |
0.00 |
0.00 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Ceriops decandra |
305 |
22.19 |
0.23 |
0.29 |
|
632 |
20.41 |
0.56 |
3.61 |
|
927 |
19.05 |
1.65 |
7.48 |
|
1350 |
23.87 |
1.47 |
14.95 |
|
Ceriops tagal |
|
|
|
|
|
|
|
|
|
|
100 |
2.05 |
0.25 |
1.12 |
|
864 |
15.27 |
1.16 |
11.88 |
|
Cynometra iripa |
5 |
0.33 |
0.01 |
0.01 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Excoecaria agallocha |
123 |
8.94 |
3.74 |
4.78 |
|
45 |
1.47 |
0.65 |
4.18 |
|
|
|
|
|
|
9 |
0.16 |
0.09 |
0.95 |
|
Heritiera littoralis |
186 |
13.58 |
3.48 |
4.44 |
|
150 |
4.85 |
0.71 |
4.61 |
|
|
|
|
|
|
5 |
0.08 |
0.00 |
0.01 |
|
Rhizophora apiculata |
173 |
12.58 |
1.16 |
1.49 |
|
923 |
29.81 |
2.08 |
13.47 |
|
3223 |
66.2 |
17.8 |
80.66 |
|
2795 |
49.44 |
5.51 |
56.24 |
|
Rhizophora mucronata |
|
|
|
|
|
|
|
|
|
|
141 |
2.89 |
0.48 |
2.16 |
|
223 |
3.94 |
0.15 |
1.49 |
|
Scolopia macrophylla |
5 |
0.33 |
0.00 |
0.00 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Scyphiphora hydrophyllacea |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5 |
0.08 |
0.03 |
0.32 |
|
Sonneratia griffithii |
45 |
3.31 |
6.34 |
8.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Xylocarpus granatum |
95 |
6.95 |
6.39 |
8.16 |
|
350 |
11.31 |
3.38 |
21.93 |
|
23 |
0.47 |
0.14 |
0.64 |
|
14 |
0.24 |
0.00 |
0.04 |
|
Xylocarpus moluccensis |
355 |
25.83 |
56.05 |
71.55 |
|
423 |
13.66 |
4.25 |
27.58 |
|
18 |
0.37 |
0.05 |
0.22 |
|
232 |
4.1 |
0.46 |
4.69 |
|
Number of Species |
12 |
|
|
|
|
11 |
|
|
|
|
9 |
|
|
|
|
14 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Sum |
1373 |
|
78.3 |
|
|
3095 |
|
15.4 |
|
|
4868 |
|
22.1 |
|
|
5655 |
|
9.8 |
|
|
| |
|