Exploring The Impacts Of Land Use On Public Health In Sample Areas Of Yangtze River Economic Belt

Health is the foundation for individual survival and development,an important manifestation of social stability,and a hallmark of high-quality national development.With a remarkable array of global economic and social development achievements,the importance of health is increasing.It has been established that land use affects public health through environmental pollution,while ecosystem services connect the natural ecosystems of the land to human society and are fundamental to human health and well-being.There are a limited number of studies that incorporate ecosystem services into the public health impact pathway of land use.The study uses 233 cancer registries in the Yangtze River Economic Belt as the study sample to characterize public health in terms of cancer incidence,and extends the public health effects of land use from the study of a single mediator of environmental pollution to a comprehensive study of both environmental pollution and ecosystem services,and constructs a framework of land use-environmental pollution/ecosystem services-public health.The research findings are as follows.(1)The increase in the shape index of urban construction land will cause an increase in industrial waste gas and industrial wastewater emissions.The increase in industrial emissions and wastewater discharge will significantly increase the incidence of lung,stomach,colorectal,oesophageal,pancreatic and kidney cancers,with the total impact coefficients of 0.4,0.164,0.623,0.575,0.765 and 0.6 in that order.(2)Changes in the proportion of urban construction land,urban construction land shape index,ecological land fragmentation,water fragmentation,and Shannon diversity index cause changes in ecosystem services air purification,water pollution,soil conservation,flood reduction,and habitat quality,and the incidence of lung,stomach,colorectal,esophageal,pancreatic,and kidney cancers increases significantly when ecosystem services decline.(3)The positive effect of environmental pollution on cancer incidence was greater than the negative effect of ecosystem services on cancer incidence.The coefficients of the shape index of urban construction land on the overall cancer incidence were 0.188 and0.134 when industrial waste and air purification were parallel mediators,and 0.303 and0.099 when industrial waste and water purification were parallel mediators.Based on the empirical results,make the corresponding recommendations:(1)Establish a mechanism for cooperation between public health,territorial and spatial planning,land use and other departments,and implement health impact assessments to effectively promote the linking of public health with land use.(2)Optimize land management policies,carry out land spatial planning and ecological protection restoration,revitalize existing construction land,improve land use efficiency,control the disorderly expansion of construction land and the fragmented development of ecological land,and enhance the degree of land use mixing.(3)Attach importance to "reducing pollution and increasing greenery" and building an economic system of "industrial ecology" and "ecoindustrialised",strictly protect the ecological space,consolidate the ecological base,enhance the spatial resilience of the ecosystem,utilize in protection,protect in utilization,and promote the coordinated development of regional nature and society.