Analysis And Research Of Ecological Landscape And Tree Species Selection In Northwest Liaoning

Landscape architecture is a complex scientific system,which contains aesthetics,ecology,feng shui,sociology and other content.With the development of the times and the progress of society,landscape architecture is not only the traditional thinking is simply responsible for the design of the discipline,more and more responsibilities and responsibilities need to landscape gardeners to shoulder.In recent years,due to the rapid development of urban construction and economy,dust weather,haze,greenhouse effect and other environmental problems have become increasingly prominent,seriously affecting the city people's production and life.In the northwestern Liaoning area,the diversity of the landscape is relatively lacking in the areas where the ecological environment is relatively backward in Liaoning Province.According to the survey,the soil problems in the area are serious,and the soil fertility is weakened,the precipitation is less and the evaporation is higher,and the scarce water resources make the northwest of Liaoning become the arid and semi-arid zone.Support the growth of various types of plants to survive,but can not form a good plant landscape patches.In this paper,the gray relational theory and the analytic hierarchy process(AHP)are used to analyze the ecological landscape of the arid and semi-arid areas in the northwest of Liaoning province.In this paper,we can use the gray relational theory and the analytic hierarchy process to solve the ecological Indicators and the selection of suitable trees for analysis and research,the relevant research results are as follows:(1)In this paper,we discuss the arid and semi-arid areas in northwest Liaoning,and through the data collection,literature review and summarization,we find that the ecological and environmental problems in the area are becoming more and more serious.Due to immigration and deforestation,policy omission,deforestation and a series of problems,the northwest of Liaoning Province has been from the rich and rich,rich resources of the feng shui treasure,has become now scarce resources,ecological environment fragile arid and semi arid areas.Water resources are extremely scarce,plant species are relatively single,land desertification,salinization is becoming increasingly serious,directly or indirectly lead to the economic recession in the region,Liaoning Province,relatively backward economy.(2)This paper analyzes and evaluates the ecological garden design index of the northwest Liaoning by the analytic hierarchy process(AHP),analyzes the four types of criterion layer and twenty class index layers,collects the opinions of the masses by means of the questionnaire,and calculates the weight of each factor And sort.In the factor analysis of the criterion layer,the ecological function is still the key issue of people's attention.Whether the ecological benefit of the landscape can be the basis of an excellent landscape garden is supplemented by the corresponding technology to the human function,social function and aesthetic function To be protected.(C11)and biodiversity(C12)accounted for a very high proportion,while economic maintenance(C46)and plant morphology(C25)accounted for the lowest proportion in the analysis of the index layer factor,according to the size of the weight,the original environmental nature protection(C11)The(3)Through the understanding and comprehensive application of gray relational degree theory and suitable tree theory,this paper analyzes the matching of tree species and area in northwestern Liaoning.Northwest China was divided into 17 areas such as Fuxin County and Yixian County,and 8 species of typical tree species were selected.The measures of windbreak and sand fixation and soil and water conservation were calculated,and the optimal tree species were selected.According to the field investigation,the selected indicators were analyzed,and the most suitable species in each region were:Fuxin County,Mongolian oak;Jinxian County,Jinxian County,Jinzhou City,Jinzhou City,Tai'an District,Pinus tabulaeformis,Huludao City,Tree,Huludao City Nanbiao District for the oak,Huludao City Longgang District for the larch,Huludao City Xing City for the oak,Huludao City Suizhong County for the Robinia,Huludao City Jianchang County for the oak,Chaoyang City Zaoxian County is Zhuohua,Chaoyang City,Longgang District,Chaoyang City,North City,Beipiao City,Chaoyang City,Jianping County,North China larch,Chaoyang City,Lingyuan City for the oil pine,Shenyang City Kangping County for the camphor Zisong,Zhangwu County for the oil pine.