Advances in the blue-green space evaluation index system

Blue-green spaces have certain ecological, economic, and social benefits for urban development. Many evaluation index systems have been developed to evaluate the health status of urban ecosystems; however, blue and green spaces are separately evaluated without considering the synergistic effect between water and green spaces in the ecosystem, thus affecting the unified planning and construction of cities. Therefore, based on existing studies, the development process of the blue-green space evaluation index system is divided into three stages: Supply service evaluation stage, adjustment service evaluation stage, and cultural service evaluation stage in order to deeply discuss the development path of the blue-green space evaluation index system. The blue and green evaluation index systems are compared from the perspectives of index selection and evaluation content. Moreover, the characteristics of conventional evaluation methods are discussed in order to propose an applicable evaluation index system and evaluation method of blue-green spaces for evaluating the degree of blue-green integration of cities. The review provides the basis for urban planning and ecological restoration.

Automated summary

Blue-green spaces have various benefits for urban development, but current evaluation systems separately assess blue and green spaces without considering their synergistic effect. This affects the unified planning and construction of cities. Thus, a development path for a blue-green space evaluation system is proposed, along with an applicable evaluation index system and method for assessing the integration of blue and green spaces in cities. This review serves as a basis for urban planning and ecological restoration.