The Longleaf Pine Ecosystem
	Категория: Биологические науки » Экология. Окружающая среда
		Автор: Jose S. Издательство: Springer Год издания: 2006 isbn: 0387296557 Количество страниц: 438 Язык: english Формат: PDF Размер: 24 Мб Каталожный номер: 37706	The longleaf pine ecosystem, once one of the most extensive ecosystems in North America, is now among the most threatened. Over the past few centuries, land clearing, logging, fire suppression, and the encroachment of more aggressive plants have led to an overwhelming decrease in the ecosystem’s size, to approximately 2.2% of its original coverage. Despite this devastation, the range of the longleaf still extends from Virginia to Texas. Through the combined efforts of organizations such as the USDA Forest Service, the Longleaf Alliance, and the Nature Conservancy, extensive programs to conserve, restore, and manage the ecosystem are currently underway. The longleaf pine ecosystem is valued not only for its aesthetic appeal, but also for its outstanding biodiversity, habitat value, and for the quality of the longleaf pine lumber. It has a natural resistance to fire and insects, and supports more than thirty threatened or endangered plant and animal species, including the red-cockaded woodpecker and the gopher tortoise. Ключевые теги: экология
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	0 Опубликовал: johnbob | 19-06-2010, 06:02 | Просмотров: 1044   Комментарии (0)  Печать