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Friday, December 27, 2019

Natural Resources of India - Part 2

NATURAL RESOURCES OF INDIA - PART 2

FOREST RESOURCES

Benefits  of  Forests
•    Forests produce the requisite raw materials for industries, defence, communications,domestic use and other public purposes.
•    They contribute to the country’s exportsand create a large volume of employment in the primary, secondary and tertiarysectors.
•    They also provide materials like fuelwood, small timber, fodder, etc. fordirect use by the agriculturists.
•    The benefits from forests in the matter of soilconservation, recreation, wildlife, etc. have been well-recognised.

Forests have multifarious uses, some of which can be identified as follows:
•    Trees and forests have many uses, and are, therefore, considered as one ofthe important natural resources of a country. Plants through photosynthesisconvert the  solar energy  into various forms of energy like  food,  fuel,  oilproducts, raw materials for industries, and other indirect sources of renewableenergy, which can be directly used by us. Forests meet nearly 40 per centof our energy needs.
•    The thick foliage-mix, that both trees and shrubs attract, prevents soil erosion,and holds moisture content in both the soil and the atmosphere. These arealso described as hydrological benefits of forests.
•    Forests  meet  the  basic  needs  of  the  poor  people  of the  country  in  manyways. Forests provide 30 per cent of our fodder needs. A large section ofthe country’s population – Ignancy Sachs calls them ‘eco-system people’ –depends on forests for firewood which is basic for human survival. Failure tomeet the basic needs of rural people may put millions of women – who goout to collect the firewood everyday to forests – into serious difficulties
Present  Position
•    Forests  occupy  about  783.7  lakh  hectares  or  about  23.84  per  cent  of  thegeographical area.
•    (Of this dense forest category, i.e., 40 per cent or more of thearea covered by trees, amounts to about 58.0 per cent.)
•    Of these about 433 lakhhectares  or about  61.0  per cent are exploitable;  another  178 lakh  hectares orabout 25 per cent are potentially exploitable.
•    Among the States, Madhya Pradeshhas the maximum forest area of 77,265 sq.km., followed by Arunachal Pradesh(68,045 sq.km.) and Chhattisgarh (56,448 sq. km.).

Mineral resources
Mineral resources are essential natural occurring materials or commodity found on or in the earth in such small amounts which are mined for their potential uses or their intrinsic values.

Types:
Metallic resources are things like Gold, Silver, Tin, Copper, Lead, Zinc, Iron,Nickel, Chromium, and Aluminum. Nonmetallic resources are things like sand, gravel, gypsum, halite, Uranium, dimension stone. A mineral resource is a volume of rock enriched in one or more useful materials.

Minerals:
“A mineral is an element or chemical compound that is normally crystalline and that has been formed as a result of geological processes” (Nickel, E. H., 1995). “Minerals are naturally-occurring inorganic substances with a definite and predictable chemical composition and physical properties.”

Example Of A Mineral:
Other common elements in silicate minerals correspond to other common elements in the Earth’s crust, such aluminium, magnesium, iron, calcium, sodium, andpotassium. Some important rock-forming silicates include the feldspars, quartz,olivines, pyroxenes, amphiboles, garnets, and micas.

Mineral resources classification

•    Metallic Mineral Resources
•    Nonmetallic Mineral Resource

FUEL MINERAL RESOURCE
1. Metallic mineral resources: These are minerals resources that contain metal in raw form, their appearances have metallic shine and they can be melted to obtain new products.
Examples: Gold, Silver, Copper, Tin, Iron, Lead, Zinc, Nickel, Chromium, and Aluminium.

2. Nonmetallic mineral resources: 
These are minerals that do not contain extractable metals in their chemical composition; they contain nonmetallic shine or lustre in their appearance.
Examples: sand, stone, gravel, clay, gypsum halite, and Uranium.

3. Fuel mineral resource: These are the basic mineral resources in the world. These are primarily gotten from the remains of dead plant and animal, they are often referred to as fossil fuels and are formed from hydrocarbon.
Examples: fossil fuels such as coal, crude oil (petroleum) and natural gas.


STATE WISE:
The principal minerals produced in the State were coal, natural gas (utilised), iron ore, limestone, petroleum (crude), baryites and which together accounted for 53.32% of total value of mineral production in the State during the year 2010-11

INDIAN STATES IN MINERAL WEALTH:

State
Mineral/Metal
Jharkhand
Coal
Odisha
Bauxite (Aluminium Ore)
Odisha
Chromite (Chromium ore)
Odisha
Iron Ore
Odisha
Manganese
Rajasthan
Lead & Zinc
Rajasthan
Calcite (source of marble)
Rajasthan
Gypsum (used in fertiliser, plaster of paris etc.)
Rajasthan
Quartz
Andhra Pradesh
Asbestos
Andhra Pradesh
Limestone
Andhra Pradesh
Mica
Andhra Pradesh
Barytes
Madhya Pradesh
Diamond
Madhya Pradesh
Copper Ore
Karnataka
Gold
Maharashtra
Corundum (source of ruby, sapphire)
Himachal Pradesh
Rock Salt
Rajasthan
Crude Oil
Assam
Natural Gas
Barytes are used as weighting agent for drilling fluids in oil & gas exploration, barium is used in CT Scan


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