Study On The Spatial Feature Map Of Context In Bakuo Historical Block Of Lhasa

Today,when China’s urbanization has changed from high-speed development to high-quality development,helping regions with great regional characteristics better and more effectively excavate and retain regions that can highlight their cultural context characteristics,so as to avoid problems such as damage to regional characteristics and one side of thousands of cities,is the hot spot of the times to explore how to continue the urban context.In recent years,due to the grand western development program and the national policy of assisting Tibet,Lhasa has also ushered in unprecedented development opportunities,meanwhile,it is also facing the crisis of urban destruction due to construction.As the economic,political and cultural center of Tibet,the ancient city of Lhasa has inherited a rich cultural context and formed a unique context space.Its protection and inheritance have also become the focus of Lhasa’s development.Therefore,this paper proposes to draw a map,which can intuitively and comprehensively retain the development characteristics of a certain area,take the Bakuo historical block,which remains from the development of the ancient city of Lhasa,as the research object,extract the context spatial elements that highlight the context spatial characteristics of Bakuo historical block,and analyze its relevance through two ideas of "synchronicity" and "diachrony",so as to establish the context spatial feature map and pedigree of Bakuo historical block.Based on the above analysis,this paper puts forward the corresponding strategies of context space protection and inheritance of Bakuo historical block.The paper is mainly divided into three parts,the specific contents are as follows:The first part is the basic analysis of historical geography.Firstly,sort out the historical and geographical basis of the ancient city of Lhasa at the macro level,then clarify the spatial scope and evolution stage of Bakuo historical block,and study and judge the development status of Bakuo historical block.Based on this,this paper combs the influencing factors of the context space formation of Bakuo historical block and the characteristic description of each stage of evolution and development,so as to extract the context space elements of Bakuo historical block,including the dominant ontology elements of "point line surface" and the recessive correlation elements such as politics,culture and economy.The second part is the drawing of context spatial feature map of historical blocks.Based on the characteristic attributes of "diachronic" and "synchronic" of context,this paper analyzes the correlation of the context spatial elements extracted above,draws the context spatial feature maps of "point element Tibetan Buddhist temple","point element noble residence","line element street and lane" and "area element folk house",and establishes a pedigree composed of the evolution characteristics of each context spatial element in different historical stages,Analyze and summarize the evolution mode of each context spatial element in the long history.The third part puts forward the strategy of context space protection and inheritance of Bakuo historical block.Based on the evolution model of context space elements in the previous part,combined with the scoring of context space of Bakuo historical block by relevant experts,this paper evaluates the value of context space of Bakuo historical block.Through the establishment of the value evaluation system of context space in Bakuo historical block and the establishment of the principle of protection and inheritance,this paper puts forward the protection and inheritance strategy of "point line surface" three levels of context space in Bakuo historical block.It is hoped that the context space of Bakuo historical block can be effectively protected and inherited in the future urban development,and provide an effective way for the protection and inheritance of context space in relevant cities in Lhasa and even Tibet.