Abstract
Blue-green spaces composed of water and 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, in these evaluation index systems,
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
single 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.