Against the backdrop of global climate change, the threat of extreme rainfall and flooding hazards to urban safety is becoming increasingly serious, and there is an urgent need to improve the resilience of cities through the construction of sponge cities. However, improving the sponge city’s capacity for resisting the risk of urban flooding is challenging. The relevant concept of ecosystem-based disaster risk reduction (Eco-DRR) is currently one of the main international theories of urban resilience, and it has important value for enhancing urban stormwater resilience. An approach for improving the stormwater resilience of sponge cities is presented in this paper, using the urban design of Jiangchuanlu Street in Shanghai as an example and the stormwater model to simulate flood disasters on Jiangchuanlu Street. In addition to the simulation results, the population and property conditions of the site were combined in order to conduct a comprehensive risk assessment through the risk matrix. Then, the Eco-DRR measures were implemented to enhance the urban stormwater resilience of Jiangchuanlu Street based on the assessment results. Finally, the ecological infrastructure of the study area was constructed, and the safety and health units were created on the basis of the ecological substrate to prevent and respond to public health emergencies. The results show that the stormwater resilience enhancement approach based on Eco-DRR can effectively alleviate the flood risk of Jiangchuanlu Street. At the same time, the safety and health units created through the ecological infrastructure can also help to prevent and respond to public health emergencies. The results of this study provide a resilience enhancement approach for sponge cities based on Eco-DRR, as well as a theoretical reference for the planning and construction of safe and resilient cities.

The ecological security pattern is conducive to promoting the harmonious integration of regional development and ecological protection. Taking Xi’an, a core city in the west of China, as an example, the ecological source area was identified based on an assessment of the importance of ecological services and the sensitivity of the ecological environment. Then the minimum cumulative resistance model and gravity model were used to construct the regional ecological security pattern and optimize the ecological spatial structure layout. The results show four key aspects of this system. (1) The source area of ecological protection identified in this study was 3352.5 km², accounting for 33.2% of the city, and it is mainly distributed in the Qinling Mountains, Lishan Hills, Weihe River, Heihe River, and Jinghe River. (2) Excluding the ecological source area, the low, medium and high-level security pattern areas accounted for 27.21%, 15.95% and 14.31% of the whole area, respectively. (3) The models generated 21 potential corridors with a total length of about 105.24 km, including 9 key corridors. (4) In order to optimize the ecological spatial structure of Xi’an, one proposal is to build an ecological security network layout system with “one barrier, one belt, several corridors, multiple areas and multiple points” as the core.

The ecological environment has been the favorite subject of ecological security with the aim of ecological restoration, development and utilization. Therefore, a spatial game model was constructed according to the theory of spatial production and the spirit of game theory. Then the methods of Factor Analysis and Multivariate Analysis were used to verify the actual situation of watershed ecological compensation satisfaction in Anhui section of the Huaihe River Basin. The results show that: (1) Government management is still the dominant player in the spatial game, and the satisfaction of both market governance and social governance have significant impacts on its overall satisfaction; and (2) To improve the satisfaction of the spatial game, it is necessary to strengthen its cost control, face up to the status and role of its behavior subjects, and accurately recognize its target groups. The results of this study are helpful for deepening our understanding of watershed ecological compensation, and three viewpoints obtained based on the research results are: creating a new pattern of multiple collaborative constructions, highlighting the new implications of cost co-governance and consolidating the new demand of benefit sharing.