Knowing these details, it is easy to understand why the trees in any city do not survive well. It is also easy to understand why some city managers might think that the best solution is to cut them all down.
But as you might suspect, research2 has shown that urban trees and landscapes provide a wide variety of socioeconomic benefits to the people living and working in cities. Neighborhoods with trees are better off economically. Businesses thrive, residents earn more money. People are both mentally and physically healthier when trees are nearby. There is less crime in regions with trees. There is more social cohesion and interaction - people are more friendly and cooperative in the presence of trees than they are in an urban desert. 3 4
The City of Stockholm has embarked on an innovative project, developed and led by Björn Embrén, that has not only saved the trees of Stockholm, but has caused them to thrive in a remarkable way. The approach he developed not only ensures the well being of trees and other city landscapes, including grassy areas, but also provides a distributed system for the drainage and filtration of stormwater. The tree and landscape planting pits are an investment that makes sense not only for the social benefits, but also because the city saves money in stormwater drainage system maintenence and overall capacity provisioning and maintenance, tree replacement and maintenance, and grassy area maintenance such as a park.