Study On Temporal-Spatial Differences And Influencing Factors Based On The Relationship Between Sea And Human Of Costal Cities In Liaoning Province

With the global change of the ecological environment,ecological security has become a hot issue in the world.Especially in ecologically fragile coastal areas,the rapid economic development,population density,the contradiction between human and sea relations has become increasingly acute.Because of the northeast old industrial base reinvigorated the human activities in the coastal cities of Liaoning are frequent,and the ecological security highlights important.At present,the research on the ecological security of coastal zone is not mature enough,and the evaluation mechanism and evaluation model need to be improved,so it is very necessary to analyze the ecological security in the coastal zone.This article draws lessons from the domestic and foreign relationship between sea and the coast cities with the research results of the regional ecological security.Based on establishing index system based on the relationship between sea,off the coast of Liaoning with regional ecological security situation evaluation of time and space,and analyzed the influencing factors of ecological security,aimed at the Liaoning coastal area harmonious development to provide a scientific basis.This paper selects the Liaoning coastal economic zone under the jurisdiction of Dalian,Dandong,Jinzhou and Yingkou,Panjin,Huludao six city as the study area,in 2001 to 2014 related indexes as the data source,based on relationship between sea and human including demographic indicators,resource indicators,environmental indicators,social and economic indicators of the ecological security evaluation index system,through comprehensive index method to calculate comprehensive index of ecological security,divides the level of ecological security,ecological security situation in the study area of 2001 to 2014 were analyzed in the evaluation of space and time,and using the STIRPAT model based on the relationship between sea and human to analyze the influencing factors.The results showed that:(1)In terms of time,from 2001 to 2014 of 14 years,six cities in the study area of ecological security index fluctuations,less stable,showing an overall increase in the state fluctuation,and has shown a steady rise trend.(2)From the space point of view,the research area of municipal ecological security level difference is larger.Dalian ecological security state is better;Panjin,Huludao,ecological security state in general;Dandong,Jinzhou,Yingkou ecological security status is poor.(3)From the result of the STIRPAT model,the coastal city ecological security related factors(population,affluence and Technology)in population is the main factor to influence the environmental changes,followed by technology,affluence least influence.The coefficient characteristic analysis,the impact of population and the per capita GDP of the ecological environment is negative,while the technical factor is positive.