| Sustainable development Since the beginning of the 20th century is the development goals pursued by governments and governments around the world.Quantitative assessment of sustainable development has always been the core of sustainable development research.As early as 1996,economists had a quantitative study of sustainable development,such as Canadian ecological economist Willialn and his doctoral student Wackerangel,who developed a set of sustainable ecological indicators,which is the ecological footprint indicators,the index Can quantitatively measure a comprehensive indicator of human use of natural resources in a country and region that utilizes the energy and resources in the country and region to convert it to the provision of normal operation for that country and region(Ecological footprint)needed by the material resources,and to analyze and compare the ecological productive land area(ecological carrying capacity)needed to provide such energy and resources in the country and region,so that it can be quantified To calculate and analyze whether the development of the country and the region is within the range of ecological carrying capacity,and to calculate the deficit and surplus of the productive land in the country and region.And based on these data analysis,to identify the causes and trends of the deficit,according to these reasons for the country and the region to provide some policy recommendations for sustainable development.The work of this paper is divided into pre-related literature,data collection and model research,and then the overall structure of the article frame structure and related data collection and analysis,and finally based on the results of dynamic analysis and give the relevant policy recommendations The The innovation of this paper is to introduce the population growth contrast,that is,the population fluctuation in 2011-2015,so as to provide reference for the ecological deficit mitigation in Dalian in 2015,and then provide the policy suggestions for sustainable development in Dalian.A strong basis for advice.The first chapter of this paper briefly reviews the theoretical background of the emergence of the theory of ecological footprint,and then leads to the domestic and foreign research profiles of the ecological footprint method.Then,according to the current environmental policy and trend of China,the practical significance and theory of this subject Meaning,and explain the research structure and innovation of this paper.In the second chapter,the related concepts and calculation methods of ecological footprint method are introduced in detail,including the necessary concepts such as ecological carrying capacity,ecological footprint,equilibrium factor and biological production land,and the ecological footprint method The advantages and disadvantages.In the third chapter,the author briefly analyzes the relevant situation of Dalian City,and then makes a lot of calculation according to the formula involved in the ecological footprint method.The data sources involved in the calculation are from the "Statistical Yearbook of Dalian City" from 2011 to 2015,The per capita ecological footprint of Dalian is 5.148048 hm2/cap and the per capita ecological carrying capacity is 0.799691 hm2/cap in 2015.Based on the ecological surplus model,these calculation results are taken into account to calculate the per capita ecological deficit of Dalian For the-4.348357hm2/cap,the per capita deficit is more serious,and the results of the deficit based on the results of the depth of the analysis.In the fourth chapter,the paper analyzes the ecological deficit in Dalian by using the data from 2011 to 2015.First,according to the time series using the same calculation method for the last five years,Dalian City,the per capita ecological carrying capacity and per capita ecological footprint,and the calculated per capita ecological deficit and then a comprehensive longitudinal analysis,through dynamic analysis of Dalian City 2011-2015 Year has been in the ecological deficit situation.The deficit is 2.2627hm2/cap,2.4257hm2/cap,3.0274hm2/cap,4.5273hm2/cap,4.0464hm2/cap,2011-2010 deficit phenomenon continues to intensify the deficit phenomenon in 2015 has eased,mainly due to 2015 Dalian The city’s population has been reduced for the first time.By analyzing the trend of population movement and ecological deficit model in the past five years,it is basically in line with each other.Secondly,the fourth chapter also carried out a number of countries and regions in the ecological deficit situation in Dalian to determine the level of ecological deficits in Dalian and the whole world.In this paper,in 1997,waekemagel in the "national ecological footprint" in a paper on the 52 countries and regions have done a detailed calculation of the ecological footprint,the reason why the selection of these 52 countries and regions because these countries and regions include the world 95%Of the population and 80%of the population,the study of these countries and regions of the ecological footprint can make the study more representative.To help us understand the process of sustainable development in the world,more rational analysis of the existing ecological footprint,for the ecological footprint of Dalian City to provide a reference benchmark.The ecological footprint of China is 1.2 hm2/cap,the ecological carrying capacity is 0.8 hm2/cap,the per capita ecological deficit is 0.4 hm2/cap,and the per capita ecological footprint of China is 1.2 hm2/cap.The ecological footprint is 5.1 hm2/cap,the ecological carrying capacity is 0.98 hm2/cap,and the per capita ecological deficit is-4.3 hm2/cap.It can be seen that the per capita ecological footprint of Dalian is larger than the national average ecological footprint and the ecological carrying capacity is consistent with the national level.From the deficit level,Dalian’s ecological deficit phenomenon is more serious level,far more than the national average,in the state of unsustainable development.This paper also categorizes 52 countries and regions from a global perspective on sustainability and regional sustainability:(1)global and local sustainability;(2)local sustainability and global sustainability;(3)Where unsustainable global sustainability;(4)where unsustainable and global is unsustainable.(1)population density is large;(2)is relatively high,and it is concluded that the economic deficit of Dalian is analyzed by combining the actual economic,population,political and natural environment of Dalian City.Of the fossil energy consumption,Dalian City in 2015 per capita ecological deficit level of 1.382584hm2/cap.Dalian has a lot of high energy consumption enterprises,although the industrial structure has been adjusted,but the proportion of traditional enterprises in Dalian is still relatively high,because the higher energy consumption potential will directly lead to higher ecological deficits;(3)Dalian The ecological diversity of Dalian is not high,and the ecological footprint of Dalian is not very high,so that Dalian’s ecological footprint is not balanced and the utilization efficiency of resources is not high.Sustainable economic development;(4)lack of spending power,with the aging of Dalian,and Dalian residents income is relatively low,Dalian residents spending power has declined,making Dalian’s consumer goods production capacity decline,consumer demand is not strong(5)Dalian’s freshwater resources are relatively lacking,and the per capita ecological deficit of Dalian in 2015 is 2.602232hm2/cap.Dalian’s per capita freshwater share is only one-fourth of the national per capita.The lack of fresh water resources is the most fundamental cause of the ecological deficit in the waters and the most fundamental cause of the ecological deficit in Dalian.The above five reasons are the real reasons for the sustainable development of Dalian City.The fifth chapter is the basic conclusion of the article and its policy recommendations.The summary of the basic conclusions summarizes the deficits of the land types in Dalian,and puts forward the corresponding policy suggestions according to the reasons of the deficit:(1)from the resource consumption of high consumption to rely on high-tech innovation and economic development changes,(2)as soon as possible the implementation of industrial upgrading,the development of high-tech enterprises,(3)to establish the concept of bio-productive land,the rational development of land resources,a reasonable assessment of land carrying capacity,coordination of population,resources,environment,economic growth and improve the utilization of land resources;(4)Saving water,strengthening the city to save water management,protect water resources,increase desalination technology,to solve the Dalian water deficit phenomenon.(5)the progress of science and technology,with the progress of science and technology,bio-productive land output will be higher and higher,productivity will inevitably lead to the improvement of ecological carrying capacity,with the progress of science and technology desalination Will be resolved,the replacement of new energy and so a series of errors will make the city land capacity to enhance,thereby reducing the ecological deficit. |
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