Forests help retain water onsite through interaction of many species.

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"The results clearly show that neither maize nor grasses can duplicate the services of the original tropical forest. With its two hundred plant species, the forest lets virtually none of its soil or water escape and sustains a lush productivity year-round." (Baskin 1997:89)

Book
Work of Nature: How the Diversity of Life Sustains UsIsland PressJanuary 1, 1997
Yvonne Baskin

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