渭南市生态足迹与生态安全动态研究

Ecological footprint and ecological safety of Weinan City of China

利用生态足迹方法对陕西省渭南市1985年~2003年的生态足迹与生态安全进行了定量研究,该市人均生态足迹由1985年的1.3792hm2逐年增加至2003年的2.3516hm2,而实际人均生态承载力则波动在0.5252（0.4726~0.5917）hm2左右,人均生态赤字从1985年的0.8423hm^2增至2003年的1.8291hm^2。生态压力指数从1985年的0.82逐年增至2003年的1.29,同期生态占用指数从0.63增至1.08,生态经济协调指数波动在0.58～0.88之间。说明渭南市现有的发展模式是不可持续的,生态环境处于稍不安全状态,社会经济发展与生态环境的协调性很差。

A quantitative study was undertaken to examine ecological footprint and ecological safety of Weinan City of Shaanxi Province,China,from 1985 to 2003.Per capita ecological footprint of Weinan gradually increases from 1.3792hm2 in 1985 to 2.3516hm2 in 2003.Per capita ecological capacity is between 0.4726hm2 and 0.5917hm2.An increase in per capita ecological deficit is noted from 0.8423hm2 in 1985 to 1.8291hm2 in 2003.Ecological tension index increases from 0.82 in 1985 to 1.29 in 2003.Ecological occupancy index increases from 0.63 to 1.08 over the same period with an ecological economic coordination index range of 0.58～0.88.Results show the current development model of Weinan to be unsustainable with ecological environment being at risk.Also,socio-economic development does not match ecological capacity.