Forests

Arbor Day: Why trees need to be grown and tracked, not just planted

Tree planting alone is not enough to save the planet. Image: Unsplash/Matt Artz

Karen D. Holl

Professor of Environmental Studies, University of California, Santa Cruz

Pedro H. S. Brancalion

Professor of Tropical Forestry, Luiz de Queiroz College of Agriculture, University of São Paulo

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Planting trees can have both positive and negative effects, depending on how projects are planned and managed and where they are done. Image: Creative Commons/Vanessa Sontag, modified from Holl and Brancalion 2020
Transforming an open ecosystem into a shaded monoculture plantation harms native plant and animal species and reduces the water supply for local people and aquatic creatures. Image: Creative Commons/Robin Chazdon
This forest in southwestern Virginia was logged in the 1800s and has since regrown naturally, like most forests in the eastern United States. Image: Creative Commons/Leighton Reid
A farmer and representatives from an international NGO and a restoration company. discuss where to plant native trees on a cattle ranch in the Brazilian Amazon. Image: Creative Commons/Pedro Brancalion
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Related topics:

ForestsBiodiversityClimate ChangeOne Trillion Trees

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