Restoring tropical forest by planting tree islands

Drs. Karen Holl and Rakan Zahawi, along with Mr. Juan Abel Rosales, talk about their 14-yr study comparing planting "islands" or patches of trees with natural forest regeneration and the more standard plantation-style planting approach. The research project continues at 12 sites in southern Costa Rica.

Provided by University of California, Santa Cruz

Runtime: 7:31

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