PORTSMOUTH, N.H. — The city of Portsmouth, N.H., is looking to create the position of tree warden to deal with changes in the local tree ordinance.

The tree warden would be the one to approach if someone wanted a permit to remove trees in a public right of way or public place. The warden would work with the city’s Trees and Public Greenery Committee.

The change would bring the city into compliance with a state statute authorizing municipalities to have a tree warden.

The Portsmouth Herald reports proposed changes to the tree ordinance would give the city explicit responsibility in establishing as many trees as can be maintained on public land and public rights of way. It also encourages the planting of noninvasive trees representing diverse species and age classes.