Poorly planned and executed tree planting schemes can harm the environment, experts warned as they set out “golden rules” for restoring forests.
Planting trees to suck up carbon emissions can be presented as an “easy answer” to tackling the climate crisis, but large-scale plantations can actually cause more problems than benefits, scientists have said.
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One in four hardwood trees in the eastern United States was once an American chestnut. But no one today can take a walk in these woods beneath the once towering chestnut trees because the species is functionally extinct.
Have you ever wanted to get a sample from the top of a tree, without having to climb it or shoot it out with a shotgun? Would it be cool to place a sensor or trap in the canopy of a tree to gather data or insects?
Societal Impact Statement
When thinking of tree conservation, sprawling forests generally come to mind. But cities, although covering only 2% of land globally, could harbour a sixth of the world’s tree diversity, according to Australian researchers.
And among the more than 4,700 tree species they counted, one in 10 faces conservation risk in the wild. Six are even thought to be extinct.
“Urban areas represent an overlooked opportunity for plant conservation globally,” says lead author Alessandro Ossola from Macquarie University.
Areas with low tree coverage and poor soil quality are more likely to experience flood and drought, as the soil is less able to retain excess rainwater writes Jacqueline Skalski-Fouts.
Humanitarian crises have recently been declared in Sudan, Yemen, Niger, Mali, and Somalia—affecting at least 450,000 people—due to flash floods and landslides.
The City of Cape Town has completed South Africa’s first ever tree mapping project. This project identified all the trees within the city, providing clear data on the development of the city’s urban forest.
Cape Town has not quite reached the definition of an urban forest according to the United Nations. Rather than the required continuous 10% of tree canopy cover required, the city currently has 7%.
The eastern hemlock is not one of those ubiquitous, celebrity trees such as the white oak or the white pine. Throughout much of its range — from northern Alabama up to New Brunswick, Canada, and Minnesota — the hemlock has lurked mainly in dark mountain valleys, where the cool, moist climate favored it over competitors. In northern states and Canada, it mixed with sugar maple, beech and other cold-hardy forest dwellers.
Every reforestation project is a little different. Every place on the planet is facing their own unique challenges. In light of these challenges, places like Uganda and Tanzania are finding ways to make reforestation more than just environmentally beneficial, but also socially and economically too.
