The Parks, People and Nature booklet was published on 10 March as a way of addressing the issues many of London's practitioners face. Created by the mayor's biodiversity team, the pamphlet looks at challenges such as climate change and how parks can be used to address the problem, as well as access to natural landscapes and successful management of sites.
Greater London Authority senior policy adviser for health and sustainable development Alex Bax launched the guide at Natural England's Going Wild conference.
Bax said: "London is probably one of the greenest cities in the world but we have large areas with major deficiencies in terms of access and provision, and it's essential for us to improve those."
Tree planting and improving public perception of woodland are covered in the guide, along with the importance of green spaces in dealing with flood risks and providing shade when temperatures rise.