Natural Resources and Energy Paper

755 Words 4 Pages
Natural Resources and Energy Paper
Natural ecosystem is a natural unit consisting of all plants, animals, and microorganism in an area functioning together with all the non-living physical of the environment which plants and animals are dependent upon one another, and their particular surroundings-for survival. Natural ecosystems make up the planet on which we live as well as the entire universe. They are dynamic and interconnected. An ecosystem is a collection of all plants, animals, microorganisms, bacterium, and fungus as well as the non-living components that function together as one unit in a given area (The Ontario Plan, 2011). Living and non-living things intertwine with each other in a natural ecosystem. San Diego’s wetland is an
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Human activities cause wetland degradation and loss by changing water quality, quantity, or flow rates resulting increasing pollution and change the makeup of species within a habitat. These changes occur when wetland ecosystems are disturbed or non-native species are introduced to a habitat. Wetland plants can suffer as a result of both pollution and hydrologic changes. Other ways wetland plants can be damaged are cattle and other livestock grazing, introduction of non-native plants that compete with native plants and removal of plants to use land for other human development.
Management for sustainability and conservation
In the 1970s and 80s state and federal agencies, together with many private conservation groups, spent millions of dollars to purchase San Diego County wetlands to establish wildlife preserves. As a result, most of the county’s wetlands are publicly owned. This has largely stopped the filling, dredging, and other direct destruction of the wetlands, but they are still suffering from the erosion and sedimentation caused by upstream development. The City of San Diego has recently restored seven acres of salt marsh on the north end of Mission Bay, which expands the wetlands of Mission Bay Northern Wildlife Preserve. The Southern California Wetlands Recovery Project aims to acquire more than 1,500 acres, and to restore or enhance more than 500. In San Diego County the Project

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