基于三维生态足迹模型的流域自然资本动态评估——以福建省九龙江流域为例@@@Dynamic evaluation of natural capital using the Three-Dimension Ecological Footprint Model:the Jiulong River Basin in Southeast China

： Natural capital assessment is an important way to analyze the regional ecosystem balance and sustainable development. Based on the Three- Dimensional Ecological Footprint Model ， the per capita footprint depth ， footprint size and three- dimensional ecological footprint from 2000 to 2015 were calculated for regional and different land types in the Jiulong River Basin ， southeast China. We analyzed the occupation of regional natural capital flow and natural capital stocks ， and differences among different land types using the capital flow occupancy rate ， use ratio of stocks to flows and other indices. We found that in the Jiulong River Basin ， the per capita footprint depth increased from 2.34 to 4.33 ， the per capita footprint size increased from 0.463hm 2 to 0.655hm 2 ， and the per capita three-dimensional ecological footprint expanded from 1.08hm 2 to 2.84hm 2 . This means that the occupation level of regional natural capital flows gradually increased ， the consumption of natural capital stocks rapidly increased ， and thus resulted in the more intensive pressure on ecosystem services. Significant differences lie in the use of natural capital in different land types. All land types but forest and grassland performed were in ecological deficit from 2011. Increased demand on fossil energy land was the fastest and led to accelerated increase in the regional ecological footprint. Increasing natural capital flows and reducing the consumption of natural capital stocks are urgently required in order to achieve regional sustainability. More measures are encouraged to regulate construction land scale ， protect limited cultivated land ， improve energy use efficiency and promote conservation-oriented consumption.