摘要
为评价嘉鱼至赤壁西高速公路建设前、建设中与运营期对路域生态环境质量的影响,本文选取2013年、2015年、2017年3期Landsat 8卫星影像为数据源,全面覆盖该工程建设前、建设中与运营后三个阶段。基于遥感生态指数RSEI,对研究区路域的生态环境质量进行动态监测与评价。结果表明:2013年、2015年和2017年研究区的生态环境质量等级主要以较差和中等等级为主,2013年~2015年期间,变差的比例为53.12%,变好的比例为33.38%,生态环境质量下降;而2015年~2017年期间,变差的比例为46.89%,变好的比例为49.26%,生态环境质量有所改善。整体上,高速公路的建设和运营对路域两侧的生态环境均有一定程度的负面影响,但强度不大且可在短期内恢复。研究结果可为高速公路路域生态环境治理与恢复、公路建设决策制定等方面提供技术支持。
In order to evaluate the influence of Jiayu-Chibixi Expressway on ecological environment quality,three scenes of Landsat-8satellite imagery in 2013,2015and 2017are selected as datasets,covering three phases of the expressway including the period before construction,during construction period and operation period.The ecological environment quality is dynamically monitored and evaluated based on RSEI index in this paper.The study results show that the levels of ecological environment quality in 2013,2015and 2017are mainly focused on poor and medium grades,in 2013-2015,the deteriorative percent of ecological environment quality in the study area is 53.12% while the improved percent is 33.38%,the whole ecological environment quality deteriorates,however in 2015-2017,the deteriorative and improved percent of ecological environment quality are 46.89% and 49.26% respectively,and the ecological environment quality is improved.In general,the construction and operation of highway impose negative effect on the ecological environment along the road to some extent,but the destructiveness is not strong and can be recovered in a short time.The study results can provide technological support for decision making in the ecological environmental governance and restoration as well as highway construction.
作者
杨晶
王丽园
罗丰
YANG Jing;WANG Li-yuan;LUO Feng(CCCC Second Highway Consultants Co.Ltd.,Wuhan 430056,China)
出处
《公路》
北大核心
2019年第12期260-265,共6页
Highway
基金
国家自然科学基金（青年项目），项目编号41701394
湖北省自然科学基金（面向项目），项目编号2017CFB189
