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Where It Has Gone How to Get It Back

机译:哪里去了怎么找回来

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Longleaf pine ecosystems, among the most species-rich ecosystems outside of the tropics, are estimated to have once covered 60-93 million acres of the Southeastern United States. Longleaf pine occurred on a variety of sites ranging from dry sandhillsto wet savannahs. The range of sites occupied or capable of being occupied makes them desired habitat for many popular game and non-game species, as well as a suite of threatened or endangered species, and species of conservation need. Ideal longleaf pine ecosystems are open, park-like forests that are the result of frequent fires. Alteration of the natural fire regime, timber harvesting, conversion to agriculture, and the loss to development are among the historical causes that have reduced this once grand ecosystem to approximately three percent of its former range.
机译:在热带以外,长叶松生态系统是物种最多的生态系统之一,据估计曾经覆盖美国东南部60-93百万英亩。长叶松树发生在许多地方,从干燥的沙丘到湿的大草原。被占领或能够被占领的地点的范围使其成为许多流行的游戏和非游戏物种以及一系列濒危物种和保护需要物种的理想栖息地。理想的长叶松树生态系统是开阔的公园状森林,是频繁发生火灾的结果。改变自然火灾状况,采伐木材,转为农业以及发展遭受损失的历史原因之一,已使这个曾经繁华的生态系统减少到原来范围的大约三成。

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