The Present Applied Situation And Developing Foreground Synthetic Estimate Of Ulmus Pumila Linn. In Harbin

Ulmus pumila Linn, is one of important landscape trees in Harbin. It's wide oval in tree type, and high arbor. Its fruits like copper cash in early spring. It germinate early, endure pruning, resistance is powerful. It is planting usually as four-sides afforesting and decretive plant investigated it's history and present situation was investigated completely. It was combined with the current interior and abroad ecological urban garden building, the tendency of environment landscape developments at interior and abroad city and the knowledge that the afforesting development adjust the species demand. Its application present situation and questions is analyed completely in Harbin. And in this paper we take the specialist consulting means, assess the application value of Ulmus pumila once more from the trees resist of cold, drought, pollution, disease, insect pest to the effect of beauty and ecology and afforested application cost, and so on. It is think that Ulmus pumila growth quickly and adaptability is very good. Ulmus pumila has high beneficial result in landscape. We should strengthen the protection and manage for the old and famous trees. It is a accepting species by people who love it and enjoy it. If we strengthen the preventing and curing work against diseases and insect pests, it will be the distinguishing species that fit subsequent city development.For its defects, we can solve it by means that increase the environment's diversify and change soil condition, establish perfect and scientific norm and criterion, establish and amplify the plant protection information network, strengthen prevention and curing work about plant diseases and insect pests with new concept, strengthen direction to grow seedlings scheme, enlarge the area of nursery, speed up the manufacturing, establishing the urban afforesting proposals and the measures such as species resources information system and so on. The researching conclusion supply technique and theory guidance to the species application scheme to build ecologic garden city in Harbin andsupply the bases for city planing and clarify new concept of how to treat native species' important situation in garden. It is positive to improving and increasing beautify Harbin landscape. It supply directive advices to manufacture of the Ulmus pwnila to avoid the blindness of manufacture and application. It also offers correlative theory directions to other cities of the same area or resemble of city.