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《Journal of Geo-Information Science》 2016-11
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Analysis of Expressway′s Impact on Vegetation in Its Spatial and Temporal Variation Based on Remote Sensing Monitoring

GUO Yunkai;GOU Yepei;Changsha University of Science & Technology;Chengdu City Land Planning Cadastral Affairs Center;  
Vegetation dynamics and their coupled relations with ecology are current research hot spots in exploring how the terrestrial ecosystems respond to the climate systems. We have obtained the vegetation leaf area index on both sides for the expressway in the research area, based on the simulations which use the PROSAIL and TM images as the information source. We studied the dynamic changes of road vegetation growth status with LAI from aspects of time and space. The results are shown as follows.(1) The temporal change of vegetation growth pattern in the expressway region shows that: the temporal growth condition of the roadside vegetation is influenced heavily in the first 5-year period after a new expressway has opened.(2) The spatial change of vegetation growth pattern in the expressway region shows that: the spatial growth condition of the roadside vegetation is heavily impacted within the regions that are closer to the expressway, while the vegetation located far from the expressway is mildly affected. Generally, this research provides reliable basic data for guiding the vegetation restoration and protection.
【Fund】: 国家自然科学基金项目(41471421、41171397)
【CateGory Index】: Q948.1
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