Research On The Landscape Optimization Of Community Parks Under The Low-carbon Concept

As the largest developing country in the world,China has always attached great importance to carbon emissions in the process of rapid economic development.Exploring a low-carbon model suitable for Tianjin’s development is the only way to ensure Tianjin’s sustainable development,and low-carbon landscape has become an important component of today’s urban development goals.The landscape characteristics of community parks,which bear most of the carbon emissions in urban green space,greatly affect the optimization and research of low-carbon landscape.In this paper,community parks are divided into three types: public activities,leisure green space and natural ecology,and 12 community parks in downtown Tianjin are selected as research objects.Firstly,the evaluation index set of low-carbon landscape in community parks is established from the criteria of green plants,material application and facility allocation,and the indicators that affect the evaluation of low-carbon landscape are clearly defined,and the evaluation system of low-carbon landscape in community parks is constructed.Secondly,based on the comprehensive evaluation method of AHP-entropy weight method,starting from three types of community parks,the evaluation system of low-carbon landscape of three types of community parks is constructed,and the emphasis of evaluation indicators is clearly defined by mining the comprehensive relationship and classification relationship of evaluation index weights;Finally,the evaluation results of 12 community parks are obtained by combining the results of investigation data processing with the results of evaluation index weights.The similarities and differences of low-carbon landscape in community parks in downtown Tianjin are analyzed from the perspective of synthesis and classification,and the comprehensive optimization strategy and classification optimization strategy are put forward accordingly.The main conclusions of the study are as follows:(1)The evaluation system of low-carbon landscape in community parks shows that public activity community parks focus on the utilization rate of recyclable materials in material application,leisure green space community parks focus on the utilization rate of energy-saving facilities in facility configuration,and natural ecological community parks focus on the ratio of tree species with high carbon sequestration capacity among green plants.(2)Common problems of low-carbon landscape in three types of community parks,including low density and weak canopy level;The application ratio of high carbon sequestration plants and low maintenance plants is low;Low coverage rate of three-dimensional greening;Recyclable energy facilities have low utilization rate,single type and obvious differences in different areas.(3)The low-carbon landscapes of the three types of community parks are different because of their own characteristics,including the lack of tall trees in public activity community parks,the excessive use of energy caused by inefficient use of natural energy in leisure green space community parks,and the ornamental nature of plants in natural ecological community parks can not be well adapted to plant species.This paper attempts to combine the low-carbon concept with the optimization study of community parks to construct a scientific low-carbon evaluation system.By studying the low-carbon landscape of community parks in downtown Tianjin,it provides reference and guidance for the landscape design practice of community parks in Tianjin in the future from the aspects of green plants,material application and facility configuration.