Abstract:
Abstract Based on the revised three-dimensional model of ecological footprint, the per capita ecological footprint, footprint depth and footprint size of Jiangsu Province from 2009 to 2016 were measured, and the spatiotemporal variation characteristics of natural resources utilization in the province were quantitatively analyzed. Then, the driving factors of per capita three-dimensional ecological footprint were discussed by using the revised T-form correlation analysis. Additionally, the grey model GM(1,1) was established to predict the evolution trend of ecological footprint and ecological carrying capacity of Jiangsu from 2019 to 2022. The results showed that: (1) From 2009 to 2016, the per capita ecological footprint, per capita ecological deficit, footprint depth and footprint size were all increasing while the per capita ecological carrying capacity slightly decreased. Cultivated land, woodland, grassland, water area and fossil energy land were all in the state of ecological deficit, except for construction land. The ecological footprint of fossil fuel land occupied a dominant position of the whole province; the footprint depths of grassland and water area were much higher, so the overdraft of resource stocks was very serious. The footprint size of cultivated land accounted for the main part of that of whole area, but it declined slightly during the research period. There were great differences in footprint depth and footprint size among 13 cities in Jiangsu Province, with the footprint depth in the order of southern region> central region> northern region, and the footprint size in the order of northern region> central region> southern region.(2)Inducting the development of tertiary industry, improving energy efficiency and regional trade exchanges could alleviate the expanding trend of per capita ecological footprint in Jiangsu Province, while the growth of per capita GDP, urbanization level and the increasing of population scale could promote the growth of ecological footprint.(3)The results of grey prediction showed that the per capita ecological footprint would continue to grow from 2019 to 2022, while the per capita ecological carrying capacity would decline slightly. Therefore, the phenomenon of ecological deficit would continue to exist and become more serious, and the pressure on the ecological environment would further intensify.