Research On Carbon Source And Sink Of Tourism In The Yangtze River Delta Based On Temporal And Spatial Pattern

Under the background of "double carbon",tourism can play an important role in energy structure adjustment,demand side emission reduction and improving ecological carbon sink because of its industry particularity,and has great carbon reduction potential.As one of the most active and potential tourism development destinations in China,the study of the evolution of its tourism carbon source and carbon sink in time and space is of great significance to the low-carbon development of tourism in the Yangtze River Delta and the timely realization of China’s "double carbon" goal.In order to systematically analyze the carbon source and carbon sink of tourism in the Yangtze River Delta,this paper first constructed the carbon sink of ecosystem in the Yangtze River Delta and the calculation model of tourism carbon source based on "regional tourism development coefficient",selected the relevant statistical data of 41 cities in the Yangtze River Delta from 2010 to 2019,used SPSS and EXCEL software to calculate,and analyzed the spatiotemporal change from multiple levels.Combined with the tourism economic contribution rate,the temporal and spatial dynamic analysis of tourism carbon balance in three provinces and one city is carried out.Secondly,Arc GIS10.7 software was used to draw the spatial and temporal distribution maps of tourism carbon emission intensity in 2010,2013,2016 and 2019,and Jenks natural fracture point method was used to divide them into five types: low intensity,slightly low intensity,medium intensity,slightly high intensity and high intensity.ESDA method and local Moran scatter plot were used to analyze the global and local aggregation trend.Then Kaya identity and LMDI decomposition method are used to analyze the effects of tourist size,economic output and energy intensity on tourism carbon sources in the Yangtze River Delta.Finally,according to the research conclusions,suggestions are put forward for the low-carbon development of tourism in the Yangtze River Delta from two aspects of energy saving and emission reduction and increasing carbon sink.The results show that:(1)2010-2019 older triangle tourism overall carbon emissions is on the rise,the carbon source is the chief form tourism transportation,warehousing and postal service,in the three provinces and one city only Shanghai tourism overall declining carbon emissions,carbon emissions municipal tourism overall difference is bigger,Shanghai(highest)is Huaibei(minimum)of 58 times,The cities with high tourism carbon emission are mainly located in provincial capitals and developed tourism areas;(2)The carbon sequestration of ecosystem in the three provinces and one city showed an increasing trend.Vegetation and land ecosystem was the main component of carbon sequestration in the Yangtze River Delta,with an annual contribution rate of 88.5%;(3)The overall tourism carbon carrying capacity of Jiangsu,Zhejiang and Anhui provinces is on the rise.Shanghai has the lowest tourism carbon carrying capacity,and Zhejiang province has the highest tourism carbon carrying capacity,because Zhejiang province has a high proportion of tourism income and strong carbon sink capacity.The tourism carbon deficit of the three provinces and one city is greater than zero,the tourism carbon carrying capacity is far lower than the tourism carbon emissions,and the imbalance of tourism carbon balance in the Yangtze River Delta is serious;(4)The carbon emission intensity of tourism in the Yangtze River Delta is gradually decreasing,and the cities with high intensity and slightly high intensity are gradually decreasing.The intensity of tourism carbon emissions in the Yangtze River Delta has obvious spatial dependence,but there are also differences,the spatial distribution of agglomeration is not high,and its spatial correlation is gradually weakening.Anhui province is the main high-intensity agglomeration area,while Jiangsu Province is the main low-intensity agglomeration area;(5)Tourist scale effect is the most important factor for the increase of tourism carbon emissions,followed by economic output effect,and the decrease of energy intensity is the main reason for the decrease of tourism carbon emissions.Figure [16] table [12] reference [99]...