Geography - Natural Vegetaion Flashcards
(52 cards)
What is Natural Vegetation?
The forest or plant species which grows by the help of climatic condition and soil (temperature, rainfall, humidity and soil) without the help of human
Which part of the country do we find virgin forests?
Virgin forests are only found in the remote parts of the Himalayas.
Name two centers of research in forest and forest products.
The Forest Research Institutes at Dehradun and Coimbatore.
How do forests act as a flood control measure?
Forests control floods as the roots of the trees hold the soil together and prevent it from being washed away. The forests control floods by retaining a large amount of rainwater in the subsoil.
Name the forests which grow on the windward slope of the Western Ghats. Why do such forests grow in this region?
Tropical Evergreen Forests grow on the windward slopes of the Western Ghats. These forests grow here as the rainfall is over 200 cm, temperature is over 24 C, and humidity is more than 70%.
Name the forests which are commercially important in India.
Tropical Deciduous or monsoon forests.
How do trees in the Tropical Desert forest adapt themselves to the dry climate?
Tropical Desert forests have long roots to obtain underground water. Some have thorns or spines to conserve water and protect them from wild animals.
Give two uses of the Babul tree.
The two uses of the Babul tree are for medicines and tanning.
What are Tidal Forests also known as?
Tidal Forests are also known as Mangrove or Littoral Forests.
Name the tree as per its characteristics: (a) The wood is hard and suitable for shipbuilding. (b) The roots are underwater during high tide.
(a) Teak (b) Mangroves
Mention any two uses of the following trees: (a) Deodar (b) Chir
(a) Railway sleepers, construction purposes (b) Resin, turpentine
Mention two factors responsible for deforestation.
Overgrazing by animals and cutting of trees for agriculture.
Why do we need to conserve forests?
To preserve ecological diversity, prevent air pollution, and protect wildlife habitats.
Name two movements that have shown the participation of the community in the conservation of forests.
Chipko Movement and Beej Bachao Andolan.
Mention four responsible factors for the type and distribution of forests.
Rainfall, soil, sunlight, temperature, and relief.
What is Afforestation?
The growing of trees where earlier there were no trees. It means plantation in any barren land.
What is Agro-forestry?
A system where trees are grown along with crops and livestock is reared to make the best use of available resources and reduce pressure on natural forests.
What is Deforestation?
The cutting and removal of trees or forests.
What is Lac?
The secretion of a tiny insect that deposits on trees. It is used in making handicrafts and sealing wax.
What is Re-afforestation?
The growing of trees to replace those which have been destroyed or cut.
What is Sunderbans?
Tidal forests in the delta of the Ganga-Brahmaputra. The important trees are Sundari and Hental, also known as mangrove swamps.
What is Snowline?
The line in the mountains above which no trees can grow, as those areas are too cold and windy.
What is Silviculture?
The science of cultivating trees.
What is Social Forestry?
A joint management program of the people and the government to satisfy the needs of the rural population.
