Stady on the Resources of Autumn-leaf Trees and Their Ornamentale Value

Autumn-leaf trees are one of the important ornament trees in landscape arehitecture,so there is the significant meaning to develop the plentiful the autumn-leaf trees resources in China.In order to know the situation of autumn-leaf trees in north of Hean province,through consulting a great number of the literature and on-the-spot investigation,it shows that there are 29 families and 56 species of the autumn color trees in north Henan province,8 species show better and 4 species show worse in Xinxiang city;many autumn-leaf trees,specially 8 species have the high development potential in Taihang mountain.We should research and spread these species so as to preserve the idioplasm resources and color the garden landscaping.