| At present,under the background of urban ecological construction,citizens’ recreation needs,historical and cultural protection and resilient city construction,linear landscape planning provides a new concept for urban development and construction.Due to the rapid development of urbanization,the high-density urban built-up area,rich historical and cultural resources,concentrated public resources and tight land space in the ancient city of Shaoxing have produced fierce contradictions.The linear landscape formed by existing roads,rivers,valleys and so on,as a stock space,shows good economy and practicability.It provides a scientific and effective way for sustainable development of Shaoxing ancient urban area.Based on this background,on the basis of identifying and defining related concepts of linear landscape in ancient urban areas,the current situation and problems of basic resources and linear landscape in ancient urban areas of Shaoxing city were investigated,and the suitability evaluation index system framework was proposed.Based on satellite image maps,Arc GIS platform was used to build connectivity models,and cost distance and cost connectivity tools were used to analyze and correct routes.On this basis,the primary linear landscape and secondary linear landscape network of Shaoxing ancient city are planned and constructed.Finally,landscape structure index and network structure index are used to verify the linear landscape network.The main findings are as follows:(1)Based on the analysis results of the suitability evaluation system,the criterion layer index that has the greatest influence on the suitability of linear landscape selection in the ancient city of Shaoxing is accessibility,and the least is service;The areas with high adaptability are mainly distributed along the river system.The river system is the original important traffic in the ancient city,and most of the urban construction is attached to the side,and the river system,as an important structural element,has better landscape function,and people are more willing to get close to the river system.(2)The importance of linear landscape construction is analyzed by combining the results of adaptability evaluation with the actual situation.The calculation results show that: the focus of first-level linear landscape construction is to organically connect the first-level nodes in the ancient city area,emphasizing the connectivity and systematization of linear landscape,and it is recommended to be constructed in the near future;The emphasis of the construction of the second-level linear landscape is to connect the second-level nodes reasonably and scientifically on the basis of the first-level linear landscape.This route selection based on the process method shows a certain optimization effect in the analysis of landscape structure index and network structure index,making the planning more scientific,reasonable and implementable,better coordinating the balance between the construction of linear landscape and urban development,and improving the quality of urban ecological environment and public service.(3)The planning and construction of linear landscape network in the ancient urban area of Shaoxing city are respectively from the macro,meso and micro levels,and specific suggestions and strategies are put forward for the improvement of relevant mechanisms,spatial level planning,and optimization of storm-water storage.In particular,the coupling relationship between linear landscape network and urban blue and green space is optimized,and rainwater storage facilities based on linear landscape network and improving the quality of blue and green space are constructed,with a view to reasonably guiding urban construction,optimizing urban ecological resilience,coordinating the relationship between protection and development of ancient urban areas,and improving the comprehensive service function of ancient urban areas.(4)The construction method of linear landscape network has great guiding significance for the linear landscape network planning of the ancient urban area of Shaoxing city.The linear landscape of the ancient urban area is a multifunctional linear open space connecting natural ecology,leisure and recreation,historical and human resources in the ancient urban area.It is an important carrier of connecting and utilizing urban resources,an important way to strengthen the internal linkage of resources,an important means to protect and improve the urban style,and an effective way to realize the sustainable development of the ancient urban area.The purpose of this study is to provide reference for the linear landscape planning and construction of the ancient urban area of Shaoxing city and similar areas through the integration of qualitative research and quantitative research,the system construction of linear landscape network and the verification and evaluation of structural index. |