Treesarethemainelementsinurbanforestconstruction,andtheirapplicationdirectlyreflectstheconstructionlevelofurbanforest.Twocities,HarbinandHefei,wereselectedasrepresentativemiddlecitiesinthisarticle.Theapplicationoftreespecieswasanalyzedbycontrastinurbanforestconstruction,andtheirapplicationinHefei'sdifferentlandtypeswasstressed.Basedonthis,theapplicationoftreespecieswasfurtherdiscussedduringtheprocessofurbanforestconstructioninChinaThusitprovidedreferencesforthenationalurbanforestconstruction.
