The phrase "tree canopy" refers to the top part of a group of trees where their branches and leaves create a dense covering like a roof. Full definition
Thus, tree cover gain may indicate the growth of tree canopy within natural or managed forests. (globalforestwatch.org)
Site plans should preserve the existing tree canopy and native vegetation to the extent possible while accommodating compact development. (usgbc.org)
But these same intact landscapes can be «reduced very rapidly, in a matter of months and years, by increased fragmentation and access, even without changes in tree canopy cover. (climatenewsnetwork.net)