更改

By 1993, the Everglades had been affected by numerous human developments.  The water flow and quality had been affected by the construction of canals and levees, to the series of elevated highways running through the Everglades to the expansive Everglades Agricultural Area that had contaminated the Everglades with high amounts of nitrogen.<ref name = "Everglades, 2004"/>  The result of this reduced flow of water was dramatic. There was a 90 - 95% reduction in wading bird populations, declining fish populations and salt water intrusion into the ecosystem.<ref name="Davis, 1997"/> If the Florida Everglades were to remain a US landmark, action needed to be taken.

By 1993, the Everglades had been affected by numerous human developments.  The water flow and quality had been affected by the construction of canals and levees, to the series of elevated highways running through the Everglades to the expansive Everglades Agricultural Area that had contaminated the Everglades with high amounts of nitrogen.<ref name = "Everglades, 2004"/>  The result of this reduced flow of water was dramatic. There was a 90 - 95% reduction in wading bird populations, declining fish populations and salt water intrusion into the ecosystem.<ref name="Davis, 1997"/> If the Florida Everglades were to remain a US landmark, action needed to be taken.

=== '''当前场景描述''' ===

=== 当前场景描述 ===

1993年，大沼泽地受到了无数人类发展的影响。水流和水质受到了运河和堤坝建设、穿过大沼泽地的一系列高架公路以及大沼泽地农业区的影响，而大沼泽地农业区已被大量氮污染。<ref name="Everglades, 2004" /> 水流减少的结果是惊人的。涉水鸟类数量减少了90-95%，鱼类数量减少以及盐水入侵生态系统。<ref name="Davis, 1997" />如果佛罗里达大沼泽地要继续成为美国的地标，就必须采取行动。

1993年，大沼泽地受到了无数人类发展的影响。水流和水质受到了运河和堤坝建设、穿过大沼泽地的一系列高架公路以及大沼泽地农业区的影响，而大沼泽地农业区已被大量氮污染。<ref name="Everglades, 2004" /> 水流减少的结果是惊人的。涉水鸟类数量减少了90-95%，鱼类数量减少以及盐水入侵生态系统。<ref name="Davis, 1997" />如果佛罗里达大沼泽地要继续成为美国的地标，就必须采取行动。