陕西省生态安全时序变化及驱动因子研究  

Study on Temporal Changes of Ecological Security and Its Driving Factors in Shaanxi Province

作　　者：闵学[1] 任志远[1] 

机构地区：[1]陕西师范大学旅游与环境学院/西北国土资源研究中心,陕西西安710119

出　　处：《山东农业科学》2014年第11期104-109,共6页Shandong Agricultural Sciences

基　　金：中央高校基本科研业务费专项基金(GK201101002);国家自然科学基金项目"我国生态脆弱区能源开发生态效应测评与调控研究"(41371523)

摘　　要：运用生态足迹计算方法,结合区域自身特点,通过产量因子、均衡因子及贸易调整系数予以调整,以生态足迹与生态容量比值作为衡量区域生态压力的指标,分析了陕西省2001-2011年生态安全的时序变化,并利用主成分分析方法探析了陕西省生态安全动态变化的驱动力。结果表明：陕西省人均生态足迹从2001年的1.1141 gha增长到2011年的2.3290 gha,人均生态容量略有上升,生态压力指数呈增加趋势,说明陕西省一直是生态赤字,生态环境处于不安全的状态。陕西省生态安全动态变化是人口、经济、资源环境、技术、土地利用程度等多方面因素共同作用的结果,经济发展引起的人均GDP增加是生态安全动态变化的主要驱动力。In this paper,the ecological footprint method was adopted and the yield factors,equivalent factors and trade adjustment coefficients were introduced combined with the regional characteristics.The ratio of ecological footprint to ecological capacity was used as the index to measure the regional ecological pressure.Based on these,the temporal changes of ecological security in Shaanxi Province during 2001 - 2011 were analyzed,and the driving factors were also studied by the method of principal component analysis.The results showed that the ecological footprint per capita of Shaanxi Province increased from 1.1141 gha in 2001 to2.3290 gha in 2011; the ecological capacity per capita increased slightly,and the ecological pressure index showed increasing trend.All these indicated that Shaanxi Province had always been in ecological deficit,and its ecological environment was not safe.The dynamic change of ecological security in Shaanxi Province was the result of joint actions of population,economy,resources and environment,technology,land use degree etc.The increase of per capita GDP caused by economic development was the main driving force for ecological security dynamics of Shaanxi Province.

关 键 词：生态足迹 产量因子 生态安全 陕西省 

分 类 号：S181[农业科学—农业基础科学]