Soil Erosion
	Категория: Естественные науки » Прочие естественные науки
		Автор: Zachar D. Издательство: Elsevier Год издания: 1982 isbn: 0444997253 Количество страниц: 547 Язык: english Формат: PDF Размер: 13 Мб Каталожный номер: 26355	Soil is the basis of production in agriculture and forestry, the nourisher of mankind and an important component of the human environment. Much more attention should therefore be given to the soil, and greater control with respect to its rational use, protection and improvement, needs to be exercised.Challenging problems in soil conservation arise from the rapid growth of the world population and the ensuing requirement for increased food production on the one hand, and on the other, from rapid technical process giving rise to further industrialization and urbanization which involve the deterioration, destruction,intoxication, and contamination of the environment by industrial fumes and various chemical substances.
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	0 Опубликовал: johnbob | 16-11-2009, 00:00 | Просмотров: 878   Комментарии (0)  Печать