London tree and woodland survey

MQT on 2014-10-22
Session date: 
October 22, 2014
Question By: 
James Cleverly
GLA Conservatives
Asked Of: 
The Mayor


Following your recent announcement of a comprehensive survey of London's trees and woodlands, involving hundreds of volunteers from Team London, what will be the main objectives and benefits of this survey and how will this be used to further your goals of improving Londoners' quality of life?


Answer for London tree and woodland survey

Answer for London tree and woodland survey

Answered By: 
The Mayor

The survey is utilising the I-tree methodology developed by the US Forest Service and applied across many cities in the USA, Australia and, increasingly, in Europe.

Analysis of the data will provide a broad picture of the benefits of London's 'urban forest' (in relation to pollution abatement, reducing stormwater run-off, carbon storage etc.) and a monetisation of these environmental services provided by trees. This creates a better evidence base for continued investment in maintaining and increasing London's canopy cover. 

A pilot I-tree survey undertaken by the Victoria Business Improvement District demonstrated that the 1,225 trees in Victoria provide over £100,000 worth of benefits each year and the cost of replacing these benefits would be £2,000,000.