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Water covers 71% of the Earth's surface. Of this, 97.5% is the salty water of the oceans and only 2.5% freshwater, most of which is locked up in the Antarctic ice sheet. The remaining freshwater is found in lakes, rivers, wetlands, the soil, aquifers and atmosphere.
Download as PDF; Printable version; In other projects ... the conservation of natural resources in the ... challenged in 1864 the idea that Earth's natural resources ...
Its purpose was to promote the conservation of living resources important to humans. In 1992, the Convention on Biological Diversity (CBD) was agreed on at the UN Conference on Environment and Development (often called the Rio Earth Summit) as an international accord to protect the Earth's biological resources and diversity. [3]
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. [ 24 ] [ 25 ] It is an interdisciplinary subject drawing on science, economics and the practice of natural resource management .
Conservation-far is the means of protecting nature by separating it and safeguarding it from humans. [29] Means of doing this include the creation of preserves or national parks. They are meant to keep the flora and fauna away from human influence and have become a staple method in the west. Conservation-near however is conservation via connection.
Many of the earth's resources are especially vulnerable because they are influenced by human impacts across different countries. As a result of this, many attempts are made by countries to develop agreements that are signed by multiple governments to prevent damage or manage the impacts of human activity on natural resources.
Determining the size, type and location of habitat to conserve is a complex area of conservation biology. Although difficult to measure and predict, the conservation value of a habitat is often a reflection of the quality (e.g. species abundance and diversity), endangerment of encompassing ecosystems, and spatial distribution of that habitat. [34]
Soil conservation is the prevention of loss of the topmost layer of the soil from erosion or prevention of reduced fertility caused by over usage, acidification, salinization or other chemical soil contamination