In order to reduce the number of tree felling at Mai Po, WWF could consider crown reduction in some areas. Also, regular pruning can be done as well. Nevertheless, topping should be avoided.
On the other hand, WWF should stick to its tree management scheme (if any). You know in the Rhododendron management case at Ma On Shan by the govt. Some keen conservationists objected to any tree management in relation to the reduction of competition between Rhododendron and other vegetation. So, be careful.
Captain