Land degradation in the Sahelian countries of West Africa is widely perceived as a critical threat to economic development. There is some evidence that current rates of depletion of Sahelian land resources may be excessive from an economic perspective, due to insecurity of land tenure and poorly developed capital markets. This paper attempts to evaluate the gross on-site costs of soil erosion in Mali, a nation in which subsistence farming accounts...
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ПОДРОБНАЯ ИНФОРМАЦИЯ
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1989/11/01
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Рабочий документ по вопросам охраны окружающей среды
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ENV21
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1
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1
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2010/03/16
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Disclosed
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The on-site costs of soil erosion in Mali
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soil loss
ФАЙЛЫ ДЛЯ СКАЧИВАНИЯ
ПОЛНЫЙ ОТЧЕТ
Официальная версия документа (может содержать подписи, и т.д.)