| In today’s city’s transition from."incremental" to "stock",urban double repairs play an important role.The restoration of mine wasteland is an important part of urban double repair.Effective evaluation of the repair results is conducive to timely repair of shortcomings,formulating long-term repair strategies,and improving repair benefits.The thesis is divided into four parts:research background and literature review,establishment of comprehensive evaluation system and evaluation method of each index of the established system,comprehensive evaluation practice of restorative landscape cases and restorative landscape design.First of all.based on a large number of literature.the background of mine wasteland restoration and the current research progress on the theory,technology,repair cases,and evaluation of repairing mine wasteland restoration are reviewed.Then,based on the lack of research status,a comprehensive ecological,economic and social restoration landscape comprehensive evaluation system of mine wasteland was established,and various index weights in the evaluation system were established by summing up previous research results,expert surveys combined with AHP analytic analysis and other methods.Quantitative and qualitative research methods and evaluation standards of various indicators in the system,so that the overall evaluation in the later period can proceed smoothly.Taking Nanjing Tangshan Mine Park as an example,the evaluation practice is carried out with reference to the comprehensive evaluation system and each index evaluation method,and suggestions for late construction of Nanjing Tangshan Mine Park are proposed,and the design points and strategies of the quary mine park are summarized.Finally,referring to the research conclusions,we selected the pit of Yangshan Quarry in Tangshan.Nanjing to carry out the restoration landscape design practice.The comprehensive evaluation system can provide a basis for more comprehensive restorative landscape evaluation.The study of landscape pattern characteristics and ecological economic value indicators in the system can also reflect the inter-annual changes of industrial and mining wasteland after being abandoned to redevelopment construction.Through a case study,Nanjing Tangshan Mine Park has an overall score of 7.121.The landscape pattern and land use are excellent.Vegetation planting,especially the shrub layer,needs to be improved.Plant richness and diversity are inadequate.The soil is healthy but the fertility is insufficient.The economic benefits brought by the site landscape leisure and entertainment facilities are remarkable.The aesthetic quality of the landscape is excellent,and the spatial richness and industrial cultural connotation are lacking.For landscape restoration design of abandoned quarries and mines:(1)Development should be carried out within 1-3 years after closing the pit as much as possible,should fully respect the current land use,protect the restored natural vegetation as much as possible,and choose hard landscape node layout On the plaques of the unrecovered abandoned land,the greening of the pit body requires strong manual intervention.(2)It is not advisable to plant a single plant in a large area,pay attention to build a complete community structure of shrubs and shrubs,improve plant species diversity and plant collocation in the site,and the coverage of the natural restoration vegetation herb layer is often not high,requiring manual intervention.(3)Don’t worry about the health of the soil,you should pay attention to the proper use of physical,chemical and biological methods to improve soil fertility.(4)The economic benefits brought by the interactive nodes and facilities in the pit park can effectively hedge the ecological and economic value of the development and construction losses,realize the economic sustainability of the site operation and maintenance management,and the characteristics of landscape design are of great significance to enhance the attractiveness. |
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