You can have different types of conservation zones in urban areas.
For example, in Montreal, we have a park called Parc-nature du Bois-de-Saraguay, which is for conservation. It is not open to the public for recreation. This is a typical forest in the area from 200 years ago. This forest has never been touched. It is maintained for its ecological value.
Nearby you have another park, which is open to the public for recreation. There are different types of activities. There is conservation, but it is open to the public. There is a type of equilibrium to reach. I think it's possible.