Research On Landscape Strategy Of Hunan Province Hilly Terrain Based On Morphological Analysis In DEM

In the process of the development of nowadays society,energy,land,environment and other factors have slowly become the main obstacle of urban sustainable development.the progress of science and technology brings to human not only unprecedented driving force,but accompanied by im measurable resource consumption and environmental degradation.Standard,ideas,system,technology,will be gradually begun to change in future,so is landscape science field.From the first industrial revolution to the in formation revolution era,fast development of science and technology greatly changed human life,mutual confluence reached a new high among disciplines,the landscape also richer in diversity and mixed.As a skeleton system,The terrain has been affecting the landscape planning and landscape pattern.Based on the morphological analysis of Digital Elevation Model.Research in hunan hilly terrain landscape construction.Reproduce the natural terrain height,slope direction by computer to do elevation terrain construction experiments.Analysis that whether the landscape design match the existing terrain,Assess the hilly area landscape design methods and ecological effect from the perspective of topographic control(morphological,ecological destruction,earthwork quantity,construction quantities,wind direction,local microclimate,etc.),study the hilly landscape construction mode and its influence on urbanization and homeland security development under the guide of urban design control,trying to explore the preparation of preliminary hilly landscape construction design manuals.It has a practical guidance and application significance in the construction of urban development.This study summarized the feasibility and scientific of hilly terrain landscape design generation based on DEM morphological analysis perspective,on the other hand,applied the design and evaluation method in hilly region landscape construction of Hunan province,construct a objective and comprehensive analysis research platform in a relatively dynamic and open system.Mainly through the following parts:The first part is the first chapter for the introduction.Research the evolution of hilly urban landscape construction and development based on the analysis of the complexity,urgency,demands.combed the DEM technology causes as well as the application status in landscape terrain both at home and abroad,In an attempt to expound hilly terrain ecological prote ction and building,the application of DEM morphological analysis techno logy in landscape design promotion,hilly terrain landscape construction ad aptability problems.put forward a hilly terrain landscape construction cont rolling guideline.The second part is the second and third chapter,mainly expand the research for how hilly terrain construction theory applied to design of urban characteristic landscape in systematically.according to the analysis in terrain,space,landscape design of Hunan hilly region cities.Based on the coupling theory of landform and landscape,use 2D contour generating DEM figure,import it in the 3D rendering to analysis elevation distribution,slope distribution,gradient distribution,slope aspect distribution characteri stics of Hunan hilly area.On the basis of the construction of demonstrati on analysis,from the regional landscape concept,urban whole control,landscape sequence and vertical form three aspects,By Hunan local hilly terrain square landscape design,public building design,urban ecological park,wetland park,the overall urban landscape construction control analysis to illustrate how to solve the unfavorable factors in terrain construction,to achieve the fusion between landscape and hilly terrain.The third part is the fourth,fifth,sixth chapter,the paper mainly applicate DEM 3 d visualization terrain analysis to modeling the landscape in hunan hilly terrainin.Make a comparision based on the extraction of terrain analysis index system and algorithm in DEM,and the comprehensive construction terrain generation process are obtained.Specific selection for ground absolute altitude,topographic relief,morphology classification,from micro terrain factors and macro terrain factors,on the basis of digital image data of topography,detailed analytical step how to topographic map scanning digitizing contour and elevation point collection,for generatingDEM data information,numerical calculation,and thus for the hillyterrain analysis provides a quick and efficient technical support.The fourth part is the seventh chapter,Research the influence of hilly landscape construction on urbanization and national spatial development pa ttern optimization,starting from the hilly urban spatial expansion,analysis the trend of hilly terrain landscape planning and design with three factors of urbanization trend(population,energy,construction area).At t he same time,For research on how to advance hilly urban ecological civilization construction,optimization of land and space security development pattern in preliminary design,focus on the improvement of the hilly region landscape terrain texture and continuation,the development of hilly urban self-organization system optimization strategy research.Secondly,With large level of hilly urban planning design and the development of ecological coupling relationship as the auxiliary and control research,explore the south hill city unique landscape pattern buildingThe fifth part is the eighth chapter,mainly research from the hilly terrain adaptability and the DEM model of the construction of landscape app lication,through the research of hilly landscape to adapt with the natural ecology,urban subject,the space form image and the image,on the basis of DEM digital modeling discussion of hunan hilly landscape construction,focus on hilly terrain landscape formation mechanism and mode,Syst ematically expounded from the horizontal,longitudinal slope control,vertical slope control,processing,suitability,art form,vegetation,hydrology and the urban landscape design and the control guideline system,finally summarized the full text,looking hilly landscape construction and DEM morphological analysis the application prospect of simulation and analysis in the landscape.This paper is described in a method to study the relations of hilly city landscape construction and the urban ecological environment based on visual and digital research,It has a certain guiding significance for urban development and construction in rapid urban development and construction.