
There are several types of forests scttered throughout Indian landscape. Primarily there are 6 major groups, namely, Moist Tropical, Dry Tropical, Montane Sub Tropical, Montane Temperate, Sub Alpine, and Alpine. These are further subdivided into 16 major types of forests. Evidently, India has a diverse range of forests: from the rainforest of
Kerala in the south to the alpine pastures of
Ladakh in the north, from the deserts of Rajasthan in the west to the evergreen forests in the northeast. While classifying the forests into different types, the main factors taken into consideration include soil type, topography, and elevation. Forests are also classified according to their nature, the type of climate in which they thrive and its relationship with the surrounding environment.
One such way is in terms of the Biome in which they exist combined with leaf longevity of the dominant species (whether they are evergreen or deciduous). Another distinction is whether the forests composed predominantly of coniferous (needle-leaved) trees, broadleaf trees, or mixed. There is no universally accepted or set principle to classify forests. The different types of forests in India are discussed below. Rainforests are those forests which are characterised by high rainfall between 1750mm and 2000mm and belong to the tropical wet climate group.
The various types of forests in India are discussed below:
Tropical Rain Forest in India
Tropical Rain Forests maybe called the lowland equatorial evergreen rain forests. These forests incur heavy showers of 100-600cm a year, and hence the name, Rainforests. For this reason, the soil can be poor because high rainfall tends to leach out soluble nutrients. These forests experience an average temperature of about 26 degrees Celsius, with no pronounced cold or dry spells. The quantity of life found in these forests and its diversity makes them vital. Some of the strangest and most beautiful plants and animals are found in rain forests. They also contain a large amount of natural medicines. Rainforests are dominated by the broad-leaved evergreen trees, which form a leafy canopy over the forest floor. Taller trees, called emergent, may rise above the canopy.
Coffee, chocolate,
banana tree, mango tree,
papaya tree, avocados and
sugarcane all originally came from tropical rainforests, and are still mostly grown on plantations in regions that were formerly primary forests.
Temperate Deciduous Forests in India
Temperate Deciduous Forests are those, which consist of predominantly broad-leafed trees. Deciduous forests are of two types: Temperate and Tropical. Temperate deciduous forests occur in areas of moderate temperature and rainfall with cold winters. Species belonging to these forests drop leaves in autumn. The deciduous forests in tropical areas shed leaves only by December (in the Northern Hemisphere) when water becomes scarce. The tropical monsoon deciduous forests are found in areas receiving annual rainfall of 100 to 200cms in India, with a distinct dry and rainy seasons and a small range of temperature. The deciduous forest can further be divided into Moist and Dry.
Moist deciduous Forests in India
The moist deciduous forests are found throughout India except in the western and the north-western regions. They occur on the wetter western side of the
Deccan Plateau, the north-eastern part of the Deccan Plateau and the lower slopes of the Himalayan Mountain, on the Siwalik Hills from Jammu in the west to
West Bengal In the east. The trees have broad trunks, are tall and have branching trunks and roots to hold them firmly to the ground. These forests are dominated by Sal and Teak, along with
Mango,
Bamboo and Rosewood.
Dry Deciduous Forests in India
Indian Dry Deciduous Forests are found throughout the northern part of the country except in the Northeast. It is also found in
Madhya Pradesh,
Gujarat,
Andhra Pradesh,
Karnataka and
Tamil Nadu. The canopy of the trees does not normally exceed 25 metres. The principal trees of these forests are Indian Teak Tree, Sal, Sandalwood, Mahua, Khair, Mango, Jackfruit, Wattle and Arjun, Semal, Myrobalan and Banyan Tree.
Moreover, Littoral and swamps are scattered through out the
Andaman and Nicobar Islands, as well as the delta area of the
Brahmaputra River and the River Ganga. Usually, mangrove dates, whistling pines, bullet wood and royal palm tree are predominant here. They contain roots that have of soft tissue so that the plant can obtain oxygen from the water.
Geographical Distribution of Indian Forests
Eastern zone consists of moist, deciduous and wet evergreen forests. The Western zone forms the other extreme. It comprises mainly of thorn and dry deciduous forests. Northern and Central zones consist mainly of dry and moist deciduous forests. Southern zone incorporates characteristics of both Western and Central zones. It comprises mainly of thorn dry and
eastern highlands moist deciduous forests.
Forests are mostly exclusive and they are indispensable for further existence of life. Forests are served as a home of many species. Deforestation is the reason of global warming. To prevent that problem
Government of India has taken many necessary steps for the plantation of trees.
(Last Updated on : 23/01/2012)