![NATURAL
RESOURCES
[PART-1]](https://image.slidesharecdn.com/naturalresources-210425103546/85/Natural-resources-Environmental-studies-Forest-Resources-Types-of-Forests-Uses-of-forests-1-320.jpg)
Natural resources - Environmental studies- Forest Resources-Types of Forests- Uses of forests
- 2. Classification of natural resources 1. On the basis of origin 2. On the basis of renewability 3. On the basis of availability
- 3. On the basis of origin 1. Biotic 2. Abiotic
- 4. On the basis of renewability 1. Renewable resources 2. Non- renewable resources
- 5. On the basis of availability 1. Exhaustible natural resource 2. Inexhaustible natural resource On the basis of distribution, natural resources can be classified as: i. Ubiquitous resources ii. Localized resources
- 6. Examples of natural resources 1. Agriculture – food, fuel, feed and fiber 2. Air, wind and atmosphere 3. Plants 4. Animals 5. Coal, fossil fuels, rock, mineral resources 6. Forestry 7. Soil 8. Water, ocean, lake, groundwater, and rivers
- 7. Major natural resources 1. Forest resources 2. Water resources 3. Mineral resources 4. Food resources 5. Land resources 6. Energy resources
- 9. Forest resources • 9.4% of earth’s surface • 30% of total land area
- 10. Uses of forest 1. Fuel wood 2. Fodder 3. Wind breaks and shelter belts 4. Soil erosion check 5. Soil improvement
- 11. Forest products and their uses 1. Timber 2. Bamboo 3. Cane 4. Grasses 5. Fruit 6. Medicinal use 7. Fibre 8. Floss 9. Essential oils
- 12. Types of forests (5 types) 1. Coniferous forests 2. Temperate deciduous forests 3. Tropical rain forests 4. Temperate evergreen forests 5. Temperate rain forests
- 13. 1.Coniferious forest • Cold windy region near poles • Conifers are adapted to withstand long drought like conditions of the long winters
- 14. 2.Temperate deciduous forest • Occur in areas of moderate temperature and rainfall with cold winters. • Species belonging to these forests shed their leaves in autumn • Tropical deciduous forest shed their leaves at December. • Rainfall : 100 to 200 cms (in India) • Divided into two – a) moist b) dry
- 15. The dry deciduous forest are found throughout the northern part of the country except in the northeast. It is also found in Madhya Pradesh, Gujarat, Andhra Pradesh, Karanataka and Tamil Nadu. Principal tress of the forests are teak, sal, sandalwood, mahua, khair, mango, jackfruit, wattle and arjun, semal, myrobalan and banyan trees. • Moist deciduous forest are found throughout India except western and north-western regions. • They occur on the wetter western side of the Deccan Plateau, the north eastern part of Deccan Plateau and the lower slopes of the Himalayas, on the Siwalik hills from Jammu in the west to West Bengal in the east. • Dominated by sal and teak along with mango , bamboo, rosewood
- 16. 3.Tropical rain forest • Also called as lowland equatorial rain forest. • Rainfall 100-600 cms a year • Soil can be poor • Experience an average temperature of 26 degree Celsius • Contain large amount of natural medicines • Coffee, chocolate, banana, mango, papaya, avocados and sugarcane
- 17. Temperate evergreen forests • It encompass the wet temperate and subtropical conifer forests of North America, as well as subtropical evergreen broadleaf forests and eucalyptus forests of southern hemisphere • Hardy leaves • Dominated by pines • Also has fir, hemlock, oak, giant sequoia
- 18. Temperate rain forest • Rainfall minimum of 200 cm and upto 350 cms in warmer areas • Precipitation may be snow or rainfall in higher elevations • Annual average temperature is 0ºC • Warmest of temperature is 20ºC • Epiphytes are common
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