【摘 要】
：
用高分影像数据,基于支持向量机的分类方法,提取研究区泥石流迹地与居民地信息,进行样本精度验证后,利用多环缓冲区、核密度估计、叠置分析等空间分析和统计手段,探讨泥石流
【机 构】
：
昆明理工大学国土资源工程学院,昆明650093;昆明理工大学国土资源工程学院,昆明650093;云南省高校高原山地空间信息测绘技术应用工程研究中心,昆明650093
论文部分内容阅读
用高分影像数据,基于支持向量机的分类方法,提取研究区泥石流迹地与居民地信息,进行样本精度验证后,利用多环缓冲区、核密度估计、叠置分析等空间分析和统计手段,探讨泥石流迹地与居民地的空间关联关系.结果表明,高分数据制图的总体精度达到90.69％,Kappa系数为0.86;大部分泥石流迹地与居民地空间分布呈负相关,约10.85％的居民地与泥石流活动的危险区空间相交,活动区域内的人民生命财产安全存在较大隐患,同时居民密集地区的人类生产生活活动会加剧生态脆弱区的泥石流活动.
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