Research Progress on Optimisation of Urban Green Space Layout from the Perspective of Water Supply and Demand Balance
Under the background of increasing demand for the scale and quality of urban green space and water shortage,research on the optimisation of urban green space layout based on the balance of water supply and demand is of great significance to alleviate the water-green conflict.The study makes use of CiteSpace to analyse pertinent domestic and international researches,elucidate the meaning of water supply-demand balance in urban green spaces and associated research hot-spots,and review the content and methodologies of water supply-demand evaluation and methodologies of green space layout optimization.The study finds that:there are not as many systematic studies on how to identify,quantify and map the water balance between supply and demand in urban green spaces;Less emphasis is placed on evaluating the water demand of plants and water features and more emphasis is placed on the use of rainwater resources in the water supply side of the equation;Ecological modeling,participatory surveys and empirical statistics are some of the research methodologies used in supply and demand assessment;There are conceptual,mathematical and computer spatial models for green space layout optimization.Future studies should be further deepened in three aspects,namely,constructing and improving the assessment system and research framework for the urban green space water supply and demand balance,clarifyingthe correlation and mechanism between water supply and demand in green spaces at different time and spatial scales,and increasing the regulatory efforts in water management in gardens.
Water supply and demand balanceUrban green space layoutGreening design with water