The total geographic area of the Union Territory of Andaman and Nicobar
Islands is 0.82 million ha. The territory is a chain of more than 572 islands
and islets situated in the south-eastern part of Bay of Bengal. It lies
between lat. 6º45¢ and 13º 45¢
N and long. 92º00¢ and 94º18¢
E. The islands form two broad groups viz. the Andamans and the Nicobars
of which Andamans account for 0.64 million ha and Nicobar 0.18 million
ha. Coral reefs surround most of the islands of the Nicobar group. Land
use pattern of the territory is given in Table 3.28.a.
The climate is humid tropical. The average annual rainfall varies from
1,400 mm to 3,000 mm and average annual temperature varies from 24º
C to 28º C.
The total population is 0.28 million (1991 Census) of which 86% inhabit
Andaman Islands and rest Nicobar Islands. Scheduled Tribes constitutes
9.54% of the total population. Four aboriginal tribes i.e. Andamanese,
Jarwas, Onges and Sentenalese inhabit the Andaman groups Nicobaris and
Shampens are in the Nicobar group. Total livestock population of the islands
is 0.15 million (1992 livestock census).
Table 3.28.a : Land Use
| Landuse |
|
|
| Total geographical area |
825
|
|
| Reporting area for land utilisation |
793
|
100.00
|
| Forests |
695
|
87.47
|
| Not available for cultivation |
24
|
3.16
|
| Permanent pasture and other grazing lands |
4
|
0.63
|
| Land under misc. tree crops & groves |
16
|
1.77
|
| Culturable wasteland |
12
|
1.65
|
| Fallow land other than current fallows |
3
|
0.38
|
| Current fallows |
1
|
0.13
|
| Net area sown |
38
|
4.81
|
Source: Land use statistics At a Glance 1996-97, Ministry of Agriculture,
GOI, 2000
The total recorded forest area of the islands is 0.72 million ha which
constitutes 86.93% of the land area. The Reserved and Protected Forests
constitute about 40% and 60% respectively.
There are four forest types viz. Tropical Wet Evergreen, Tropical Semi-evergreen,
Tropical Moist Deciduous and Littoral & Swamp forests.
There are 9 National Parks and 94 Wildlife sanctuaries covering an area
of 0.15 million ha which is 18.53% of the land area. Major part of the
Great Nicobar Island has been declared as a Biosphere Reserve.
There are 504 villages, of which 153 have forest as a landuse. The forest
area in these villages is 0.04 million ha The total population of these
villages is 0.12 million. The villages having less than 100 ha, between
100-500 ha and more than 500 ha forest in each village constitute 46%,
43 % and 11% of the total villages respectively. Table 3.28.b provides
details of villages by forest area and population.
| Forest Area | No. of villages | Total Forest Area (ha) | Population |
| Less than 100 ha |
71
|
2,780
|
61,485
|
| 100 – 500 ha |
65
|
15,073
|
44,387
|
| More than 500 ha |
17
|
17,632
|
13,089
|
| Total |
Note : Information relates to Andaman only
Since the islands have very rich forest resource, forest plantations
have remained a low key activity. Only limited plantations of famous timber
spp., viz Padauk (Pterocarpus dalbergioides), a native specie and
teak (Tectona grandis) was done in pre-independence era.
Regular plantation of teak was started in 1954 after clear felling patches
of Moist Deciduous forests. In addition to Padauk, other native species
such as Koko (Albizzia lebbek), Pyinma (Lagerstroemia hypoleuca),
Badam (Terminalia procera) and matchwood species (Bombax insignis,
Sterculia companulata) have been planted in a limited scale.
The pace of planting was drastically reduced since mid seventies because
of giving up the practice of clear-felling and planting and resorting only
to assisted natural regeneration in all areas. Planting activity has remained
confined to roadside and in other vacant lands. Besides forest plantations,
about 1600 ha of Red oil Palm and 600 ha of Rubber plantations have been
established by Forest Development Corporation. These plantations are not
being extended since 1985. The details of plan-wise and species-wise plantations
are furnished in Table 3.28.c and 3.28.d respectively.
Table 3.28.c : Forest plantations by all agencies
| Period | Area in ‘000 ha |
| 1951-80 |
11.84
|
| 1980-85 |
17.04
|
| 1985-90 |
26.59
|
| 1990-91 |
3.32
|
| 1991-92 |
3.10
|
| 1992-97 |
19.34
|
| 1997-98 |
3.53
|
| 1998-99 |
3.39
|
| Total |
88.14
|
Source : NAEB, MoEF
Table 3.28.d : Species wise plantations by Forest Department upto
1998
| Species
|
Area in 000 ha | Percentage |
| Tectona grandis |
9.60
|
38.4
|
| Others |
15.40
|
61.6
|
| Total |
25.00
|
100.0
|
Source: Andaman & Nicobar Forest Department
The forest cover based on satellite data of March 1997 and January-March
1998 is 7606 sq.km which is 92.21% of the geographic area. Dense forest,
Open forest and Mangroves account for 6515 sq.km, 125 sq.km and 966 sq.km.
respectively. Forest cover of the islands is shown in Fig.3.27.
There has been a net decrease of 7 sq.km in the present assessment
as compared to previous assessment. The difference between the data
periods of the two assessment is about 4 years.
The change matrix, given in the Table 3.28.e, reveals that there has
been an overall decrease of 5 sq. km. of dense forest. This is the result
of degradation of 7 sq. km. of dense forest to non forest and improvement
of 2 sq. km. of open forest to dense forest.
The decrease of 2 sq. km. of open forest is on account of improvement
to dense forest. There has been no change in the area of mangrove.
Table 3.28.e : Forest cover change matrix
(sq.km)
| 1997 assessment (Data Dec. 1994) | 1999 Assessment (Data period – Mar.97 & Jan.-Mar. 98) | Total 1997 | ||||
|
|
|
Mangrove | Scrub |
|
||
| Dense Forest |
6,513
|
0
|
0
|
0
|
7
|
6,520
|
| Open Forest |
2
|
125
|
0
|
0
|
0
|
127
|
| Mangrove |
0
|
0
|
966
|
0
|
0
|
966
|
| Scrub |
0
|
0
|
0
|
0
|
0
|
0
|
| Non-Forest |
0
|
0
|
0
|
0
|
636
|
636
|
| Total 1999 |
6,515
|
125
|
966
|
0
|
643
|
8,249
|
| Net Change |
-5
|
-2
|
0
|
0
|
+7
|
|
The total number of districts in the state is 2 . The extent of dense
forest, open forest and mangrove, in both these districts, along with the
change compared to 1997 assessment is provided in Table 3.28.f.
Table 3.28.f : District-wise forest cover
(sq.km)
| Islands Group |
Geographic
area |
|
Total
|
Change
Compared to 1997 |
Scrub
|
||
|
Dense
Forest |
Open
Forest |
Mangrove
|
|||||
| Andamans |
6,268
|
4,864
|
90
|
929
|
5,883
|
-7
|
0
|
| Nicobars |
1,981
|
1,651
|
35
|
37
|
1,723
|
-
|
0
|
| Total |
8,249
|
6,515
|
125
|
966
|
7,606
|
-7
|
0
|
The decrease of forest cover in the Little Andamans, Diglipur and Havelock
is because of encroachment by the settlers in the revenue land.