Abstract
As an important contributor to pollutant emissions to the atmosphere, land use can degrade environmental quality. In order to assess the impact of land-use planning on the atmosphere, we propose a methodology combining the land-use-based emission inventories of airborne pollutants and the long-term air pollution multi-source dispersion (LAPMD) model in this study. Through a case study of the eastern Chinese city of Lianyungang, we conclude that (1) land-use-based emission inventorying is a more economical way to assess the overall pollutant emissions compared with the industry-based method, and the LAPMD model can map the spatial variability of airborne pollutant concentrations that directly reflects how the implementation of the land-use planning (LUP) scheme impacts on the atmosphere; (2) the environmental friendliness of the LUP scheme can be assessed by an overlay analysis based on the pollution concentration maps and land-use planning maps; (3) decreases in the emissions of SO2 and PM10 within Lianyungang indicate the overall positive impact of land-use planning implementation, while increases in these emissions from certain land-use types (i.e., urban residential and transportation lands) suggest the aggravation of airborne pollutants from these land parcels; and (4) the city center, where most urban population resides, and areas around key plots would be affected by high pollution concentrations. Our methodology is applicable to study areas for which meteorological data are accessible, and is, therefore, useful for decision making if land-use planning schemes specify the objects of airborne pollutant concentration.
Highlights
Land resources are vital to support human survival and social development
Land use can increase the emissions of airborne pollutants into the atmosphere and degrade environmental quality; it is, essential to consider the impact on the atmospheric environment during land-use planning
We proposed a methodology combining the land-use-based emission inventories of airborne pollutants and the long-term air pollution multi-source dispersion (LAPMD) model to assess the land-use planning atmospheric impact
Summary
Land resources are vital to support human survival and social development. They have been significantly influenced by human activities due largely to rapid demographic growth. Those activities directly related to land use include agriculture and urbanization, which have intensified changes in environmental quality on both regional and global scales [1]. Some land-use types are generally accompanied by pollutant emissions into water, soil, and the atmosphere, degrading the environmental quality [2,3] and even threatening human health [4,5,6]. Predicting the spatial variability of these airborne pollutants has, become an essential component of the assessment of the land-use impact on the environment. Land-use planning (LUP) (Table A1 in Appendix A) describes the future land-use in terms of its pattern and distribution [7] in accordance
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