The important progress in research on the application of urban ecological hydrology in the past 40 years,especially the optimization and control of regional water cycle elements,has effectively supported the construction of urban safety resilience.Under the guidance of the concept of urban ecohydrological system,low impact development(LID),Water Framework Directive,sponge city and climate-resilient city construction have successively emerged in North America,Europe and China.The interaction of global change and human activities has produced complex urban eco-hydrological processes,and the natural water cycle model has been transformed into a dual water cycle model of"nature-society"interaction.In the face of global change,the construction of resilient and safe cities pays more attention to the mitigation and adaptation of climate change,especially the ability to adapt to extreme weather and climate events.China's long-term continuous large-scale urban development and construction has strongly affected and changed the key elements of regional water cycle,and the development and utilization of urban underground space and land subsidence are faced with disaster risks under extreme weather and climate situations.Therefore,the geological basic conditions and their toughness constitute the basis of urban resilience safety base.Mitigation and adaptation strategies based on the control design of the key elements of the dual water cycle play an important role in the construction of a new round of climate-resilient cities."Climate change-regional dual water cycle-water balance regulation-disaster risk"and"Remote sensing big data-small data of station network-transfer function-cloud twin"can be used as a combination of technical frameworks and methods for Earth big data to support resilient city construction and sustainable development.Shanghai,as the leader of the Yangtze River Basin and a sensitive area of sea-land interaction,is also facing the test of sea level rise.Under the climate change scenario,the regulation of key elements of regional dual water cycle can be used as a strategy to serve the safety of underground space and urban resilience in Shanghai.
关键词
生态水文/气候承载力/二元水循环调控/遥感大数据/韧性安全城市/策略建议
Key words
ecohydrology/climate carrying capacity/dual water cycle regulation/remote sensing big data/resilient safe city/strategy suggestions
维普
万方数据