Hohhot10Kinds Of Garden Tree Species Introduction Adaptability Evaluation

Through the adaptability evaluation introduced tree species, to determine if an area is suitable for the introduction of tree species. Based on the thorough investiga tion, sampling investigation, phenological observation and other methods of Hohhot in Inner Mongolia agricultural university east campus10kinds of introduction of tr ee growth, resistance, low temperature resistance, wind resistance, disease resistance), three kinds of adaptability indexes such as the appreciation of the specific and det ailed investigation and analysis, to determine the developmental status (mainly bloss om), growth status (mainly the tree height growth); BaoCunLv, winter mortality, fre ezing injury rate, pumping rate and the incidence of plant diseases and insect pests; Flower, foliage, view fruit and view, a total of3class11content as evaluation i ndex to determine the classification standard of each index, and then to grade (whi ch is divided into4level), then according to the size of each parameter values infl uence on adaptive determine the weight of each index, comprehensive index evaluat ion system is established, on this basis, the evaluation of the introduced tree specie s adaptation degree of each single index and then adopts comprehensive index eval uation method to evaluate, the result is:the Prunus cistena, Fraxinus chinensis Rox b, Catalpa ovata Don tree in order to adapt to (â…  level)Suitable for the Sopnorajap onlca.cuchlnensis,Singixmoversudanyacv.Pendula tree for (â…¡ level); Rhus typhina Rob iniapseudoacacia cv.idaho, Acer truncatum Bunge unadaptable (â…¢level); Robinia his pida Ginkgobiloba Linn.is not adapt (IV level).