2nd August 2018
According to a study published in Carbon Balance and Management, urban trees in Highgate Cemetery and Hampstead Heath, London store up to 178 metric tonnes of carbon per hectare. This area provides carbon storage similar to tropical rainforests which store 190 metric tonnes per hectare. This shows the importance of urban trees in the movement to reduce emissions from cities.
Researchers from University College London used LiDAR, a laser-based remote sensing method, to build a 3D image of over 84,000 trees in the borough of Camden, northwest London. The amount of carbon stored by each tree was estimated based on the volume of a tree's crown and trunk.
"We were able to map the size and shape of every tree in Camden, from forests in large parks to individual trees in back gardens" - Phil Wilkes, University College London
Researchers found that Camden's trees store an average of 51.7 metric tonnes of carbon per hectare. Trees in certain areas suchas Highgate Cemetery and Hamstead Heath store up to 178 metric tonnes of carbon per hectare.