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Types of Vegetation & Tropical evergreen forest

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Priyanka Sahadevan

on 6 December 2015

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Transcript of Types of Vegetation & Tropical evergreen forest

VEGETATION
Vegetation means the plant life of a region or the plant community. It is the main element of the biosphere
TYPES OF VEGETATION
Tropical evergreen forests
Tropical deciduous forests
Tropical thorn forests and scrubs
Montane forests
Mangrove forests

TROPICAL EVERGREEN FORESTS
Found in areas of heavy rainfall.
Western ghats, Laskhwadeep,Andaman & Nicobar, Upper parts of Assam and Tamil Nadu coast
Tropical Evergreen Forests in the World
Types of Vegetation & Tropical evergreen forest
200cm or more
Short dry season
Trees of height- 60cm
Luxuriant vgetation

Commercial trees grow

Many plants and animals

Forest floor
The forest floor, the bottom-most layer, receives only 2% of the sunlight. Only plants adapted to low light can grow in this region. Away from riverbanks, swamps and clearings, where dense undergrowth is found, the forest floor is relatively clear of vegetation because of the low sunlight penetration. This more open quality permits the easy movement of larger animals
Understory layer
The vegetation at this layer generally consists of shade-tolerant shrubs, herbs, small trees, and large woody vines which climb into the trees to capture sunlight. Only about 5% of sunlight breaches the canopy to arrive at the understory causing true understory plants to seldom grow to 3 m (10 feet).The understory is home to a number of birds, small mammals, insects, reptiles, and predators.
Canopy layer
The canopy is the primary layer of the forest forming a roof over the two remaining layers. It contains the majority of the largest trees, typically 30–45 m in height. Tall, broad-leaved evergreen trees are the dominant plants. The densest areas of biodiversity are found in the forest canopy, as it often supports a rich flora of epiphytes, including orchids, bromeliads, mosses and lichens.
Emergent layer
The emergent layer contains a small number of very large trees, called emergents, which grow above the general canopy, reaching heights of 45–55 m, although on occasion a few species will grow to 70–80 m tall. These trees need to be able to withstand the hot temperatures and strong winds that occur above the canopy in some areas. Several unique faunal species inhabit this layer such as the crowned eagle, the king colobus, and the large flying fox.
Quiz
2.Name three types of vegetation. Also mention few features of Tropical Evergreen rainforests.
3.Why are forest floors relatively clear of vegetation as compared to the canopy layer?
4.Name few faunal species that have inhabited the emergent layer.
1.Define Vegetation.
Thank You :)
By- Priyanka
Vishnupriya
Mariam
Kimberly
Diksha
Judith
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