摘要
为了定量评价四川省生态安全的动态变化,利用生态足迹的理论与方法,测算了1990~2003年四川省的生态足迹、生态承载力、生态赤字、生态压力指数,并建立了相应的预测模型。研究结果显示:四川省的生态足迹、生态赤字、生态压力指数逐年增加,生态承载力逐年下降,区域生态系统处于不安全状态。
To quantitatively evaluate dynamic variation of the ecological security of Sichuan province, we calculated the ecological footprint, ecological carrying capacity, ecological deficit and index of the ecological pressure in Sichuan province during the period of 1990-2003. The ecological footprint, ecological surplus/loss show a tendency of reduction and the ecological carrying capacity show a tendency of increase.
出处
《土壤通报》
CAS
CSCD
北大核心
2008年第5期999-1001,共3页
Chinese Journal of Soil Science
基金
四川省青年科学基金(2003B018)
关键词
四川省
生态安全
生态足迹
预测模型
Sichuan province
Ecological security
Ecological footprint
Prediction models