摘要
准确测度区域生态安全态势对于社会经济可持续发展、实现生态文明具有重要的现实意义。以江西省九江市为例,采用能值生态模型计算了九江市2007—2018年的能值生态足迹和生态承载力,结果表明,九江市人均能值生态足迹从2007年的5.00 hm2/cap上升到2018年的7.27 hm2/cap,且生态赤字呈上升趋势;采用灰色模型预测九江市2023年的人均生态赤字将达到8.31 hm2/cap,持续存在的生态赤字表明九江市生态压力处于超负荷状态。为实现区域生态安全,迫切需要落实生态文明,发展清洁能源,提升资源利用效率,保护生物多样性,践行区域可持续发展。
Accurate measurement of regional ecological security situation is of great practical significance to the sustainable socio-economic development and the realization of ecological civilization.Taking a case study of Jiujiang City,Jiangxi Province,the emergy ecological model was used to calculate the emergy ecological footprint and the ecological carrying capacity of Jiujiang City from 2007 to 2018.The results show that the per capita emergy ecological footprint of Jiujiang has increased from 5.00 hm2/cap in 2007 to 7.27 hm2/cap in 2018,and the ecological deficitison the rise.The grayscale model was used to predict that the per capita ecological deficit of Jiujiang City would reach 8.31 hm2/cap in 2023.The persistent ecological deficit indicatesthat the ecological pressure of Jiujiang City isin an overloaded state.To achieve regional ecological security,it is urgent to implement ecological civilization,develop clean energy,improve resource utilization efficiency,protect biodiversity,and practice regional sustainable development.
作者
徐玥
黄宏胜
袁刚
XU Yue;HUANG Hong-sheng;YUAN Gang(Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology of Jiangxi Province, Jiangxi Agricultural University, Nanchang 330045, China;College of Land Resource and Environment, Jiangxi Agricultural University, Nanchang 330045, China)
出处
《科学技术与工程》
北大核心
2021年第14期6081-6088,共8页
Science Technology and Engineering
基金
江西省教育厅科技项目(GJJ159420)。
关键词
生态安全
能值生态足迹
资源环境承载力
灰色模型
九江市
ecological security
emergy ecological footprint
resource and environment carrying capacity
grey scale model
Jiujiang City
