These DAV Class 5 Science Notes and DAV Class 5 Science Chapter 3 Notes – Forests act as excellent revision resources, particularly in preparation for board exams.
Forests Class 5 DAV Notes
→ An area where the earth is covered mainly by a very large number of trees is called forest.
→ Advantages Of Forests:
Trees take up carbon dioxide and release oxygen. Thus, they purify the air and maintain the balance in the climate.
By absorbing carbon dioxide, trees check global warming.
→ Wood/Timber: Wood is used for making furniture and paper. It is also used as fuel.
→ Medicines and Spices: Many medicinal plants are found in forests. Examples: amla, aswagandha and brahmi.
→ Gums, resins and dyes: Gums are used as adhesive, food additive and medicine. Resins are used for making varnishes and paints. Many dyes are obtained from forests.
→ Special Leaves: Areca nut leaves are used for making disposable plates. Leaves of tendu are used for special purpose. Tendu leaves are also called ‘green gold’ in Odisha.
→ Large scale cutting of forests is called deforestation. Following are some reasons of deforestation:
→ More land is needed to make houses, industries and for farming.
→ Wood is required for construction.
→ Trees are also cut for making many products but new trees are not planted.
→ How To Protect Forests?
- The Forest Conservation Act was enacted by the government in 1980. As per this rule, indiscriminate cutting of forests is a punishable offence.
- Many areas in India have been converted into National Parks and Wildlife Sanctuaries. This has been done to protect the forests and wildlife.
→ National Park: It is a reserved land which is usually owned by the national government. No human activity is allowed in it. It receives a bigger financial support from the government.
→ Gir National Park in Gujarat is probably the only place where the Asiatic Lions are found.
→ We can contribute in following ways to conserve forests:
- Minimise the use of wood and wood products.
- Do not use products which promote destruction of forests. Do not use fur because fur is obtained from animals. Do not use items made of ivory.
- We should plant new trees and celebrate Van Mahotsava.
→ Deforestation: Large scale cutting of forests is called deforestation.
→ Afforestation: Recovering forest cover by planting trees is called afforestation.
→ Forest: An area with high density of trees is called forest.
→ Global Warming: General increase in earth’s temperature is called global warming.
→ Soil Erosion: Removal of topsoil is called soil erosion.