Ecological Effects of Water-level Fluctuations in Lakes
	Категория: Биологические науки » Экология. Окружающая среда
		Автор: Wantzen K.M. et al. Издательство: Springer Год издания: 2008 isbn: 1-4020-9191-5 Количество страниц: 184 Язык: english Формат: PDF Размер: 4 Мб Каталожный номер: 66340	Most aquatic ecosystems have variable water levels. These water-level fluctuations (WLF) have multiple effects on the organisms above and below the waterline. Natural WLF patterns in lakes guarantee both productivity and biodiversity, while untimely floods and droughts may have negative effects. Human impacts on WLF have led to a stabilization of the water levels of many lakes by hydraulic regulation, untimely drawdown due to water use, or floods due to water release from hydropower plants in the catchments. Ключевые теги: экология
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	0 Опубликовал: johnbob | 27-10-2011, 06:38 | Просмотров: 702   Комментарии (0)  Печать