包头市土地生态安全分析与评价

Analysis and Assesgment of Ecological Security in Baotao city

本文在生态足迹原理的基础上,提出生态压力指数作为生态安全评价的指标,对包头市2007生态安全进行分析与评价。研究表明:包头市2007年人均生态足迹为7.9575hm2,可利用人均生态承载力为2.0251hm2,人均生态赤字5.9324hm2,生态压力指数为3.9294。说明包头市现有的发展模式是不可持续的,生态环境处于极不安全状态,社会经济发展与生态环境的协调性差。

Based on the principle of ecological footprint,this research put forward ecological tension index as indicators system of ecological safety assessment. Ecological footprint in Baotou in 2007 was conducted and the results showed that the per capita ecological footprint was 7.957 5 hm2 ,the per ecological capacity was 2.025 1 hm2,The per capita ecological deficit was 5.932 4 hm2,ecological tension index was 3.929 4。The results showed that the development model of Baotou was not sustainable,the ecological environment was at risk ,the social economic development did not go with ecological environment.