Spatial Distribution And Influencing Factors Of Cultural Ecosystem Services In Haizhu Wetland Based On Social Media Photos

Ecosystem services provide environmental conditions for human survival and development.With the intensification of urbanization and industrialization,the rapid growth of population,the expansion of urban land leads to the decrease of green space,which has a negative impact on the psychological and physiological functions of human beings.Among them,as an indispensable part of Ecosystem Services,Cultural Ecosystem Services(CES)is playing an increasingly important role in improving human welfare.Therefore,it is of great significance to explore residents’ perception of ecosystem cultural services in urban green space and the influencing factors behind it,so as to improve human welfare,help urban green space landscape planning,and promote sustainable development of green space.Urban parks are an important part of the urban green space ecosystem,providing residents with more CES.In this paper,take the guangzhou haizhu national wetland park as a case,select the period 2014-2019 public comments on the website of social media photos as the main data source,use photographs of social media content analysis for tourists perception of Haizhu wetland cultural ecosystem service data,using GIS spatial analysis to CES difference in visual perception,analysis the ecosystem culture service perception of spatial heterogeneity.By means of social landscape index and kriging interpolation,the overall pattern of CES spatial distribution in Haizhu wetland are further revealed.Finally,the factors affecting the spatial distribution of cultural services in haizhu wetland ecosystem are discussed on the micro scale by using the geographic detector model.Based on the above research,Suggestions were put forward for the optimization of cultural ecosystem services of haizhu wetland,combining CES with urban park planning and management to improve the pertinence and practicability of decision-making.The results can be summarized as follows:(1)Tourists’ perception of cultural ecosystem services of Haizhu wetland is significantly different.The cultural services that tourists perceive more in haizhu wetland are aesthetic services and recreation services,followed by social relationship services and cultural heritage services,and less in education services,spiritual services,cultural diversity services and health services.(2)Various ecosystem cultural services of Haizhu wetland show obvious spatial differentiation characteristics.Among the cultural services in haizhu wetland ecosystem,aesthetic services are the most widely distributed,followed by recreation services,social relations services and educational services.The distribution of cultural services such as cultural heritage,health,spirit and cultural diversity is relatively narrow.From the perspective of spatial distribution changes,except for the insignificant spatial changes of cultural heritage,the spatial changes of other cultural services all show a trend of spatial expansion.Hot spots are mainly distributed in wetland square,Lv Xin lake,TieSuo bridge,friendship forest,Hua Xi,FuShouGuoLang,urban pastoral,Gu Yin Fan Ying,Guan Lan bridge,LinZhou egrets.(3)From the overall pattern of the spatial distribution of cultural ecosystem services in the Haizhu wetland,CES richness index shows an upward trend,and the high value areas of the richness index are mainly distributed in the wetland square,Lv Xin lake,HuaXi,Gu Yin Fan Ying,ZhuQue bridge,Hua Zhou Gu Du and LinZhou egrets.CES dominance index shows a trend of "decrease-increase-decrease",and the high value areas are generally distributed in LvXin lake,HuaXi,Gu Yin Fan Ying,LinZhou egrets.In terms of CES density index,the transformation from point to surface is realized,and the spatial connectivity is good,indicating that the function of providing cultural services of haizhu wetland is gradually enhanced.The high-value areas are mainly distributed in wetland square,LvXin lake,urban pastoral,GuanLan bridge,ZhuQue bridge,Hua Zhou Gu Du,LinZhou egrets.(4)The intrinsic mechanism of the spatial differentiation of cultural ecosystem services in the microscale is discussed by using geographic detector.The study shows that the distance to the pavilion,the distance to the bridge,the distance to the main road and other influencing factors have significant effects on the spatial distribution of CES.The detection results of the influencing factors of the spatial distribution of CES total density show that other influencing factors have significant effects on the spatial distribution except the distance to the stream.The detection results of the influence factors of the spatial distribution of CES density in a single category show that the distance to the jingting and the distance to the main road have a significant impact on the spatial distribution of cultural services such as aesthetics,recreation,social relations,education,health and cultural diversity.The distance to the trail has a significant influence on the spatial distribution of cultural services such as aesthetics,recreation and education.The distance to the river mainly affects the spatial distribution of aesthetic service,recreation service and spiritual service.The slope has no effect on the spatial distribution of any cultural services.The distance to the stream only affects spiritual services.The distance between bridge and entrance mainly affects the spatial distribution of cultural services such as aesthetics,recreation,education and social relations.The spatial distribution of cultural heritage services is only affected by the distance from the entrance.(5)Based on the results of CES spatial distribution research and the main existing problems of haizhu wetland,Suggestions are put forward for the optimization of the allocation of cultural services in haizhu wetland ecosystem for reference.Specific include:(1)Focus on the protection of hot spots,under the premise of not destroying the ecological environment to moderately improve the cold spots;(2)Improve the balance of ecosystem cultural service supply in haizhu wetland park,and improve the landscape richness;(3)Strengthen the haizhu wetland science propaganda and education function.