What is the significance of conservation?

Answer 1

The importance of conservation differ from person to person because of differs in their personal interest. For farmers conservation might be importance so for maintenance of soil quality and enhancing productivity whereas for natural lovers for viewing natural land scape and natural beauty. In the same way for industrialist so for sustainable use of Natural Resources for continuous manufacture of goods in customers market.

Answer 2

Forests provide many social, economic, and environmental benefits. In addition to timber and paper products, forests provide wildlife habitat and recreational opportunities, prevent soil erosion and flooding, help provide clean air and water, and contain tremendous biodiversity. Forests are also an important defense against global climate change. Through the process of photosynthesis, forests produce life-giving oxygen and consume huge amounts of carbon dioxide, the atmospheric chemical most responsible for global warming. By decreasing the amount of carbon dioxide in the atmosphere, forests may reduce the effects of global warming.

However, huge areas of the richest forests in the world have been cleared for wood fuel, timber products, agriculture, and livestock. These forests are rapidly disappearing. The tropical rain forests of the Brazilian Amazon River basin were cut down at an estimated rate of 14 million hectares (35 million acres) each year-an area about the size of the state of Wisconsin-in the 1990s. The countries with the most tropical forests tend to be developing and overpopulated nations in the Southern Hemisphere. Due to poor economies, people resort to clearing the forest and planting crops in order to survive. While there have been effective efforts to stop deforestation directly through boycotts of multinational corporations responsible for exploitative logging, the most effective conservation policies in these countries have been efforts to relieve poverty and expand access to education and health care.

In 2005 the Food and Agriculture Organization of the United Nations issued a major report, titled "Global Forest Resources Assessment 2005," on the status of the world's forests. Based on a five-year study, the report found that forested areas throughout the world were continuing to decline at a rate of about 7.3 million hectares (18 million acres) per year, an area equivalent in size to Panama or Sierra Leone. However, the rate of decline had slowed in comparison with the period from 1990 to 2000, when the world lost about 8.9 million hectares (22 million acres) of forested area per year. Africa and South America continued to have the largest net loss of forests, while forest loss also continued in North and Central America and the Pacific Islands. Only Europe and Asia showed a net gain in forested areas due to forest planting, landscape restoration, and expansion of natural forests. China, in particular, reported a large-scale afforestation effort. In 2005 the world's total forest area was just under 4 billion hectares (10 billion acres).

Clear-cutting

Clear-cutting is a forestry harvesting technique in which all the trees in a given area are removed. The advantages of this technique include the eventual production of trees of approximately the same age and height, which are easy to harvest using mechanized equipment. The disadvantages include the elimination of old growth forest and animal habitat, excessive erosion, and an unappealing landscape. In an effort to conserve forest resources, the timber industry is modifying clear-cutting techniques to include the complete use of all harvested trees and the replanting of clear-cut areas.

In the United States and Canada, forests are threatened by extensive logging, called clear-cutting, which destroys plant and animal habitat and leaves the landscape bare and unproductive if not properly reforested. Small pockets of ancient forests from 200 to 1,200 years old still exist but are threatened by logging interests. Until the 1990s, the U.S. Forest Service was directed by Congress to maximize the harvest of timber in order to provide jobs. In the late 1980s and early 1990s, however, environmentalists sued the government for violating the National Environmental Policy Act (NEPA), and heavy logging was deemed nonsustainable. As a result, the timber harvest was reduced and foresters were directed to follow a more sustainable policy called ecosystem management. This policy required foresters to focus on conserving natural habitats rather than maximizing tree harvest. Despite this change, many ancient forests remain unprotected.