基于生态足迹的宜宾市生态安全动态研究  

DYNAMIC STUDY ON ECOLOGICAL SAFETY BASED ON ECO-FOOTPRINT IN YIBIN

作　　者：王兴贵 唐德华 何泓 李铁松[2] 

机构地区：[1]康定民族师范专科学校环境与生命科学系,四川康定626001 [2]西华师范大学国土资源学院,四川南充637002

出　　处：《资源与产业》2009年第1期114-118,共5页Resources & Industries

摘　　要：以可持续发展观为指导,利用生态足迹评价模型,计算宜宾市1985—2005年生态足迹,分析宜宾市的生态安全状况。结果表明,1985—2005年宜宾市人均生态足迹动态变化幅度较大,总体呈逐年上升趋势;人均生态承载力呈下降趋势,生态承载力结构具有不对称性,以耕地为主;人均生态赤字变化幅度较大,1985年后出现不同程度的生态赤字,2005年出现严重的生态赤字;1985—2005年生态足迹压力指数呈现增长趋势,增幅显著。宜宾市生态安全程度持续降低,经历了安全状态—稍不安全—较不安全—极不安全的发展阶段,人类的生活、生产对宜宾市生态安全的压力越来越大,宜宾市未来土地资源的供需矛盾越来越突出。This paper, aiming at the sustainable development, uses the eco-footprint model to calculate the eco-footprint during 1985--2005 in Yibin city, and analyzes the eco-footprint safety, with results indicating a big dynamic change in per capital eco-footprint, increasing trend in general, decreasing trend in per capital coo-loads with asymmetric structure （chiefly, plowlands）. The per capital eeo-deficit fluctuated largely, emerging since 1985, to some extent, becoming severe in 2005. The eco-footprint pressure index displays an increasing trend from 1985 to 2005. The ecological safety becomes continuously decreasing, undergoing safe, less safe, unsafe, and very unsafe stages. Human＇ s living and production has a bigger and bigger impact over eco-footprint safety. The land demands and supply will become sharp in the future in Yibin city.

关 键 词：生态足迹 生态赤字 生态压力指数 生态安全 宜宾市 

分 类 号：F062.2[经济管理—政治经济学] X22[环境科学与工程—环境科学]