摘要
以生态足迹法为基础,阐述了高速公路建设对生态环境的影响。以高速公路宝(宝鸡市)汉(汉中市)线为例,将污染消纳生态足迹考虑其中,计算了高速公路修建前后沿线县域生态足迹与生态容量的变化,预测评价了研究段公路建设对当地生态环境的影响程度。研究结果表明,高速公路建设后,沿线的县域人均生态赤字增加0.016 4hm2,生态压力指数较建设前略有增加,表明高速公路的修建对区域生态环境和自然生态系统的安全性产生了一定的影响。
Based on ecological footprint analysis method,the impacts of highway construction on ecological environment were investigated in a case study of the Baoji—Hanzhong highway.Ecological footprint of pollutants was taken into account to calculate the change of the ecological footprint and ecological capacity for the counties along the highway before and after the highway construction.The impacts of the highway construction on local ecological environment were also evaluated and predicted.The ecological deficit of the counties along the highway increased by 0.016 4 hm2 and the ecological tension index also increased slightly after the construction of the Baoji—Hanzhong highway,which implies that the local ecological environment and ecological safety have been affected by the highway construction.
出处
《水土保持通报》
CSCD
北大核心
2012年第5期296-300,共5页
Bulletin of Soil and Water Conservation
基金
国家科技基础性工作专项重点项目"秦巴山区基础资料整理与数据库建设"(2007FY110800)
关键词
宝汉铁路
生态足迹
高速公路
生态压力指数
Baoji-Hanzhong Highway
ecological footprint
highway
ecological tension index
