地理国情信息提取的若干问题研究

发布时间：2018-04-27 17:23

本文选题：地理国情 + 地表覆盖　；参考：《测绘科学》2017年05期

【摘要】：针对地理国情信息提取中出现的点与区属性代码漏输或输错、地表覆盖中点的文本与属性不一致、地表覆盖中点与区数目不一致、国情统计中区块与地表覆盖区块相交等若干问题进行研究,提出了点区属性统改法、属性重赋对比法、点区匹配法、区交分析法等方法。基于MapGIS平台,以含山县地理国情普查为例,对地理国情普查中出现的上述4点问题进行分析归纳,并将之与MapGIS各小功能模块结合,总结出了一套由各小功能模块组合而成的方法。实验结果表明:本文提出的方法不仅能够快速有效地解决上述4点问题,而且能够省时省力,为地理国情普查工作提供强有力的技术支持,具有较强的实用性。
[Abstract]:In view of the point and area attribute code that appears in the extraction of geographical national conditions information, the text and attribute of the ground cover midpoint are not consistent, and the number of the surface coverage midpoint and the area number are not consistent. In the statistics of national conditions, some problems such as the intersection of blocks and land cover blocks are studied, and some methods, such as the point area attribute unification reform method, the attribute reassign contrast method, the point area matching method and the area intersection analysis method, are put forward. Based on the MapGIS platform, taking the general survey of geographical conditions in Hanshan County as an example, this paper analyzes and sums up the above four problems in the survey of geographical conditions, and combines them with the small functional modules of MapGIS. A method composed of small function modules is summarized. The experimental results show that the method proposed in this paper can not only solve the above four problems quickly and effectively, but also save time and effort, provide strong technical support for the survey of geographical conditions, and have strong practicability.
【作者单位】：东华理工大学;江西省数字国土重点实验室(东华理工大学);流域生态与地理环境监测国家测绘地理信息局重点实验室;武汉大学;
【基金】：江西省自然科学基金项目(20132BAB201049,20151BAB213031) 测绘地理信息江西省研究生创新教育基金项目
【分类号】：P208

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