辽宁省滨海公路建设对沿线生态系统的影响

根据2006年10月野外调查数据及1998年的LANDSAT 5卫星影像解译的辽宁省植被类型数据,以辽宁省滨海公路沿线植被生态系统为研究对象,运用ARCVIEW3.3、ARCGIS9.0和FRAGSTATS3.3软件研究辽宁省滨海公路建设对沿线生态系统结构的影响,结果表明：①辽宁省滨海公路跨越2个纬度和5个经度,沿线主要植被类型以湿地生态系统和农业生态系统为主。②辽宁省滨海公路的建设对生态系统产生直接的切割,使景观更加破碎。③辽宁省滨海公路的建设直接破坏沿线植被生态系统（主要为50m缓冲区内）,损失总净初级生产量为25778.39 t/a,损失总生物量199274.2～284380.6t/a。建议采取一些必要的环境保护及生态恢复性措施。

Impacts of Road Construction on Ecosystems alongside Coastal Highway in Liaoning Province

Based on the field investigation in Oct.2006 and Landsat 5 satellite imagery interpretation of vegetation types data in Liaoning in 1998,vegetation characteristic along two sides of Liaoning Coastal Highway is studied in this article.Meanwhile,the impacts of coastal highway construction on the ecosystems are analyzed using ARCVIEW3.3,ARCGIS9.0 and FRAGSTATS3.3.The results showed:(1) Liaoning Coastal Highway span 2 altitudes and 5 longitudes,both Wetland ecosystem and Farmland ecosystem are the main types of vegetation alongside road.(2) The construction of Liaoning Coastal Highway directly cut ecosystems and made more fragment on landscape.(3) The construction of Liaoning Coastal Highway destroyed vegetation,especially in 50m-wide buffer regions along both sides of the road,it was estimated that the Net Primary Productivity decreased by about 25778.39t/a and the gross biomass decreased by 199274.2～284380.6t/a.The suggestion adopts some essential environmental protection and ecological restoration measures.