Resilience change and land-sea gradient characteristic analysis of the human-sea regional system in Dalian City
Resilience is a hot topic in global change and environment and development research,providing a new research framework and practical analytical tool for regional sustainable development studies.This study combined the human-sea regional system with resilience to construct a theoretical framework for the resilience of the human-sea regional system.It integrated internal factors and external disturbances,obtained multi-source data,combined hierarchical analysis,kernel density analysis,and GIS spatial analysis methods to construct an indicator system,and used exploratory data analysis(ESDA)methods to analyze the spatiotemporal change of resilience and the characteristics of land-sea gradient.The main results are as follows:1)The resilience of the human-sea regional system in Dalian City presents a spatial distribution characteristic of low in the middle and high in the south and north,and low along the coast and high inland,and it increases year by year.The coastal and inland regions exhibit distinct regional differences.2)The resilience of the system has a spreading effect,with new hot spots sporadically appearing around the continuous hot spots.3)The resilience of the system has clear land-sea gradient characteristics.The resilience of each criterion layer is ranked in descending order as the resilience of the ecological environment,the resilience to climate change,the resilience of the resources as well as the resilience of human activities;overall resilience presents the gradient characteristic of the further away from the sea,the higher the resilience level.Therefore,the resilience regulation of coastal cities can be combined with the characteristics of the land and sea gradient for detailed governance at the micro level,and improve the level of development of the marine economy at the macro level by developing a low-carbon economy,and formulate a blueprint for the development of a blue-carbon economy.
human-sea regional systemresilienceland-sea gradient characteristicsDalian City
万方数据
维普
