| With the practice and development of modern landscape architecture,the combination of design and ecological integration,design and quantitative analysis has become more and more important.Rainwater landscape planning and design has also become a research focus on disciplines in the construction of “sponge cities” in recent years.With the increasing promotion and deepening of sponge cities,the quantified requirements for rainwater landscape planning are increasingly urgent.For example,the size of runoff,the concentration of pollutants,etc.,need to be achieved through objective and quantitative pre-analysis and post-test,and accurate evaluation Scientific evaluation methods are needed to support this work is the relative lack of current research.To achieve ecological assessment and guide rainwater landscape planning,we first need to select and master the relevant ecological assessment methods.In addition,we need to find a suitable way to combine ecological assessment with rain landscape planning.This article has conducted a preliminary exploration.In the research,the necessity of rainwater landscape planning and ecological evaluation research,the research progress and theoretical basis of rainwater landscape planning and ecological evaluation methods were successively elaborated.The BPR model was proposed through comparison of evaluation methods,and the rainwater landscape planning under the guidance of ecological evaluation was explored.In the end,taking Xi’an as an example,the method and method of localization of Xi’an City were put forward to analyze the differences in different evaluation methods.The second and third chapters of the article are part of the theoretical research.First,starting from the existing research on rainwater landscape planning,the two major issues of ecological and local nature are determined and solved through ecological assessment methods.The second chapter compares the commonly used ecological evaluation methods from the mathematical and theoretical basis,the operation steps and the scope of use,and focuses on the application of the evaluation methods of the three ecological targets in the rainwater landscape.Based on the existing research,the third chapter proposes a BPR comparison model based on the comparison of different methods,and proposes the principles,approaches,and processes for the localization of rainwater landscape planning guided by ecological evaluation.Chapters 4 and 5 are examples of applications.Taking Xi’an as the bottleneck factor for water resources as an example,they will conduct research on the application of ecological assessment methods and the way to guide the localization of rainwater landscape planning and adopt three kinds of commonly used water resources assessment methods.Analyze the status quo of water resources in Xi’an,and then conduct surveys based on the evaluation results to determine the key areas of water resources conflict.As the two basics to ensure the localization of rainwater landscape planning,the Xi’an City’s prominent water resources problems should be organized to find out the corresponding Rainwater landscape resorts to transform research.Through the guidance of ecological evaluation,the problem of target areas and targets in the rain landscape planning of Xi’an City was accurately and scientifically verified,which verified that the theory is an effective way to ensure the locality of regional rainwater landscape planning. |