摘要
利用经验模态分解(EMD)方法对1961年以来中国生态足迹与生态承载力的变化波动的周期进行了分解,并在此基础上运用动力学建模方法,建立预测模型,对中国未来20年的生态足迹与生态承载力进行数值模拟和预测。研究结果表明:随着生态足迹的增大和生态承载力的减小,中国未来20年的生态赤字越来越大,发展处于不可持续状态。政府应从提高生态承载力和减小生态足迹消耗着手来实现可持续发展。
Decomposition for ecological footprint and ecological capacity from the year 1961~2003 of China was carried out by the method of Empirical Mode Decomposition(EMD),and a dynamics modeling was extablished,the ecological footprint and ecological capacity of China in the next 20 years was predicted.The results indicated that ecological footmark was bigger than before with ecological footprint becoming bigger and ecological capacity becoming little in China in the future.Development is in forbidden sustained sta...
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2009年第1期13-17,共5页
Journal of Arid Land Resources and Environment
基金
国家自然基金资助项目(40371044)
国家"211"二期工程重大资助项目
关键词
生态足迹
生态承载力
EMD
动力学预测
ecological footprint
ecological capacity
EMD
dynamics prediction
