Natural resource: Difference between revisions
No edit summary |
VirtualSteve (talk | contribs) m Reverted 1 edit by 173.168.39.56 identified as vandalism to last revision by Vsmith. (TW) |
||
| Line 108: | Line 108: | ||
[[hu:Környezeti erőforrás]] |
[[hu:Környezeti erőforrás]] |
||
[[tl:Likas na yaman]] |
[[tl:Likas na yaman]] |
||
this is a copy right page {do not delete} |
|||
Revision as of 21:54, 19 April 2010
Natural resources (economically referred to as land or raw materials) occur naturally within environments that exist relatively undisturbed by mankind, in a natural form. A natural resource is often characterized by amounts of biodiversity existent in various ecosystems.
Natural resources are derived from the environment. Many of them are essential for our survival while others are used for satisfying our wants. Natural resources may be further classified in different ways.
Classification
On the basis of origin, resources may be divided into:
- Biotic - Biotic resources are obtained from the biosphere, such as forests and their products, animals, birds and their products, fish and other marine organisms. Mineral fuels such as coal and petroleum are also included in this category because they formed from decayed organic matter.
- Abiotic - Abiotic resources include non-living things. Examples include land, water, air and ores such as gold, iron, copper, silver etc.
Considering their stage of development, natural resources may be referred to in the following ways:
- Potential Resources - Potential resources are those that exist in a region and may be used in the future. For example, petroleum may exist in many parts of India, having sedimentary rocks but until the time it is actually drilled out and put into use, it remains a potential resource.
- Actual Resources are those that have been surveyed, their quantity and quality determined and are being used in present times. The development of an actual resource, such as wood processing depends upon the technology available and the cost involved. That part of the actual resource that can be developed profitably with available technology is called a reserve.
With respect to renewability, natural resources can be categorized as follows:
- Renewable resources are ones that can be replenished or reproduced easily. Some of them, like sunlight, air, wind, etc., are continuously available and their quantity is not affected by human consumption. Many renewable resources can be depleted by human use, but may also be replenished, thus maintaining a flow. Some of these, like agricultural crops, take a short time for renewal; others, like water, take a comparatively longer time, while still others, like forests, take even longer.
- Non-renewable resources are formed over very long geological periods. Minerals and fossil fuels are included in this category. Since their rate of formation is extremely slow, they cannot be replenished once they get depleted. Of these, the metallic minerals can be re-used by recycling them. But coal and petroleum cannot be recycled.
Examples
Some examples of natural resources include the following:
- Agriculture—agronomy is the science and technology of using plants for food, fuel, feed, and fiber.
- Air, wind and atmosphere
- Plants
- Animals
- Coal, fossil fuels, rock and mineral resources
- Forestry
- Range and pasture
- Soils
- Water, oceans, lakes, groundwater and rivers [1]
Management
Natural resource management is a discipline in the management of natural resources such as land, water, soil, plants and animals, with a particular focus on how management affects the quality of life for both present and future generations. Natural resource management is interrelated with the concept of sustainable development, a principle that forms a basis for land management and environmental governance throughout the world.
In contrast to the policy emphases of urban planning and the broader concept of environmental management, Natural resource management specifically focuses on a scientific and technical understanding of resources and ecology and the life-supporting capacity of those resources.
Depletion
In recent years, the depletion of natural resources and attempts to move to sustainable development have been a major focus of development agencies. This is of particular concern in rainforest regions, which hold most of the Earth's natural biodiversity - irreplaceable genetic natural capital. Conservation of natural resources is the major focus of natural capitalism, environmentalism, the ecology movement, and green politics. Some view this depletion as a major source of social unrest and conflicts in developing nations.
Mining, petroleum extraction, fishing, hunting, and forestry are generally considered natural-resource industries. Agriculture is considered a man-made resource. Theodore Roosevelt, a well-known conservationist and former United States president, was opposed to unregulated natural resource extraction. The term is defined by the United States Geological Survey as "The Nation's natural resources include its minerals, energy, land, water, and biota."[2]
Protection
The conservation of natural resources is the fundamental problem. Unless we solve that problem, it will avail us little to solve all others.
Conservation biology is the scientific study of the nature and status of Earth's biodiversity with the aim of protecting species, their habitats, and ecosystems from excessive rates of extinction.[4][5] It is an interdisciplinary subject drawing on sciences, economics, and the practice of natural resource management.[6][7][8][9] The term conservation biology was introduced as the title of a conference held University of California at San Diego in La Jolla, California in 1978 organized by biologists Bruce Wilcox and Michael Soulé.
Habitat conservation is a land management practice that seeks to conserve, protect and restore, habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range.[10] It is a priority of many groups that cannot be easily characterized in terms of any one ideology.
See also
{{{inline}}}
References
- ^ United States Department of Agriculture - Natural Resources Conservation Service Retrieved May 2009.
- ^ "Natural Resources". U.S. Geological Survey. Retrieved 2008-10-09.
- ^ Theodore Roosevelt, Address to the Deep Waterway Convention Memphis, TN, October 4, 1907
- ^ M. E. Soulé and B. A. Wilcox. 1980. Conservation Biology: An Evolutionary-Ecological Perspective. Sinauer Associatess. Sunderland, Massachusetts.
- ^ M. E. Soule. (1986). What is conservation Biology? BioScience, 35(11): 727-734 [1]
- ^ Soule, Michael E. (1986). Conservation Biology: The Science of Scarcity and Diversity. Sinauer Associates. p. 584. ISBN 0878937951, 9780878937950 (hc).
{{cite book}}: Check|isbn=value: invalid character (help) - ^ Hunter, M. L. (1996). Fundamentals of Conservation Biology. Blackwell Science Inc., Cambridge, Massachusetts., ISBN 0-86542-371-7.
- ^ Groom, M.J., Meffe, G.K. and Carroll, C.R. (2006) Principles of Conservation Biology (3rd ed.). Sinauer Associates, Sunderland, MA. ISBN 0-87893-518-5
- ^ van Dyke, Fred (2008). Conservation Biology: Foundations, Concepts, Applications, 2nd ed. Springer Verlag. p. 478. ISBN 978-1-4020-6890-4 (hc).
{{cite book}}: Check|isbn=value: invalid character (help) - ^ Habitat Conservation Planning Branch. "Habitat Conservation". California Department of Fish & Game. Retrieved 2009-04-07.
External links
