Urban Pocket Park System Planning Based on Low Carbon Comprehensive Benefits: A Case Study of Chaowai District in Beijing

Low carbon landscape development is an emerging approach of landscape design,which aims to promote sustainable development,and reduce energy consumption and environmental impact by reducing carbon emissions.As an important component of low carbon landscape construction,the construction of urban pocket park system based on mini-parks plays a crucial role in improving the urban greening level,increasing the urban green space,alleviating the urban pressure,improving the living and healthy environment of urban residents,and promoting the urban ecological balance.Taking Chaowai district of Beijing as an example,this paper calculates the ecological value of trees including energy contribution,carbon sequestration,ability to improve rainfall runoff and aesthetic value by collecting the information of trees and the plot on which the trees are located through the i-Tree platform,which provides important reference value for the urban pocket park system planning to create low carbon comprehensive benefits.

Potential evaluation and implementation strategy for pocket park construction in high-density urban areas: A case study in Dalian, China

As an important element of urban renewal in highly urbanized areas, pocket parks with small size, flexible layout and daily accessibility are becoming a major component of green infrastructure and the mainstay of outdoor recreation space expansion in high-density urban centers. Nevertheless, the absence of a comprehensive framework for evaluating the potential of pocket park construction (PPC), one that integrates diverse influencing factors on a macro scale, has resulted in the random installation of such spaces, often failing to optimize the utilization of urban land. Addressing this critical lacuna, we propose an approach to evaluate PPC potential from a city-scale perspective, which is used to support the determination of which land units should be prioritized for PPC. A complete and feasible workflow was also established to identify potential land units, construct an index system for PPC combining demand and supply levels, quantitatively calculate indices based on remote sensing (RS) and geographic information system (GIS), accurately evaluate PPC potential using an entropy-weighted TOPSIS model, and develop targeted renewal strategies. A case study in Dalian, China, demonstrated the applicability and implications of the workflow. The results showed that it is flexible and easy to adapt to different local contexts, allowing evaluators to introduce parameters considering the availability of local data, and will help decision makers to build pocket parks in the most effective plots, providing a strong reference for high-quality development in other high-density urban centers facing the contradiction between ecological construction and land scarcity.