基于“3S”技术的土地利用动态监测教学实践研究

以培养本科生综合实践技能为建设目标,依托于野外教学实习基地,构建基于“3S”技术的土地利用动态监测综合实践教学模式,培养学生利用多种技术手段处理数据信息及综合分析问题的能力。主要建设内容为利用遥感技术、现代测绘科学技术、地理信息系统技术,选取多时相遥感影像,设计分层分类遥感信息提取方法,获取调查区多时相土地利用/覆盖变化过程数据,依据时空变化特征,提取土地利用变化敏感区,采用无人机航测技术进行大比例尺影像敏感区动态监测,并综合研究土地利用敏感区的生态环境演化及社会经济影响。

Research on Teaching Practice of Land Use Dynamic Monitoring Based on"3S"Technology

Taking the cultivation of comprehensive practical skills of undergraduates as the construction goal and relying on the field teaching practice base,this study builds a comprehensive practice teaching model of Land Use Dynamic Monitoring based on"3S"technology,which trains students'ability to use multiple technical methods to process data information and comprehensive analysis problems.By using the remote sensing,modern surveying and mapping,and geographic information system technology,it designs hierarchical classified remote sensing information extraction method to attain multi-temporal land use/cover change data of the survey area based on multi-temporal remote sensing images.The sensitive areas of land use change are extracted according to the characteristics of spatio-temporal changes.And then the UAV aerial photography technology is adopted to enhance dynamic monitoring effect.Finally the eco-environmental evolution and socio-economic impact of land-use sensitive areas are synthetically studied.