Human Impact on the Great Barrier Reef: Pollution - 1 views
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Pollution: Fertilizers and pesticides
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Certain model estimates indicate that 22% of the world’s coral reefs are threatened by land-based pollution.
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It is noted that 80% of the land adjacent to the Great Barrier Reef is farmland that supports agricultural production, intensive cropping of sugar cane, and major beef cattle grazing.
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If the farmers over feed or fertilize with the N fertilizers, it can be lost to ground water and surface water.
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The runoff from many farmlands by the coast is also destroying the biodiversity of the Great Barrier Reef with the major increase in population of the crown-of-thorns starfish.
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An example of the dangerous harm the farmers have caused the Great Barrier Reef from runoff are those located in Queensland Australia.
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The technique used was an epidemiological technique, which was first used to link smoking to lung cancer in the 1960s
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There are various levels of sedimentation and how it can affect the coral communities when run-off occurs.