土地质量地球化学调查土壤采样点智能化布设研究  

Research on intelligent arrangement of soil sampling points in a geochemical survey of land quality

作　　者：常婵 高艳芳[1,2] 孙彬彬 周怡宁[1,2] 吴超 柳青青 CHANG Chan;GAO Yanfang;SUN Binbin;ZHOU Yining;WU Chao;LIU Qingqing(Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Key Laboratory of Geochemical Exploration,Ministry of Natural Resources,Langfang 065000,China;UNESCO International Centre on Global-Scale Geochemistry,Langfang 065000,China)

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所自然资源部地球化学探测重点实验室,廊坊065000 [2]联合国教科文组织全球尺度地球化学国际研究中心,廊坊065000

出　　处：《物探化探计算技术》2023年第6期824-832,共9页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：中国地质调查局项目(DD20221807)。

摘　　要：地质调查工作全流程信息化是地质调查发展的主要方向。在土地质量地球化学调查工作中,土壤采样点位布设工作量大,快速合理地完成采样点位布设,是野外调查工作有序开展的首要前提。这里依据土地质量地球化学调查相关规范,基于MapGIS平台实现了土地质量地球化学调查中不同工作比例尺下土壤采样点位的自动化、智能化布设,主要包括:①实现了1∶250000土地质量地球化学调查中,土壤双层采样点位的初步布设及自动编号;②遵循采样网格加土地利用图斑的布设原则,实现了支持不同平均密度要求下,1∶50000土地质量地球化学调查土壤采样点位自动化布设,布设结果兼顾空间均匀性及合理性;③基于Kmeans算法,实现了地块尺度土地质量地球化学调查中,不同土地利用类型差异化采样密度的点位自动化布设,且单一不规则地块内点位分布均匀。经对比验证,采用提出的自动化布点方式可较好地满足相关规范的点位布设要求,大幅度减轻技术人员样点布设的工作负担。The realization of informatization in the whole process of geological survey is the main direction of the development of geological survey.In the land quality geochemical survey,the arrangement of soil sampling points is much work,and how to efficiently and reasonably complete the arrangement of sampling points is the premise and key to the orderly development of field investigation.According to the relevant land quality geochemical survey specifications and based on the MapGIS platform,this paper realizes the automatic and intelligent arrangement of soil points under different work scales in the land quality geochemical survey,which mainly includes:①The preliminary layout and automatic numbering of soil double-layer sampling points in 1∶250000 land quality geochemical survey;②The automatic layout of soil sampling points for 1∶50000 land quality geochemical survey was realized under different average density requirements,and the layout results took into account spatial uniformity and rationality;③Based on the K-means algorithm,the automatic point layout of differentiated sampling density of different land use types in the land parcel scale geochemical survey was realized,and the distribution of points within a single irregular block was uniform.Through comparison and verification,the automatic point layout method adopted in this paper can better meet the requirements of the relevant specifications and significantly reduce the work burden of technical personnel.

关 键 词：土地质量地球化学调查 工作布置 自动化布设 

分 类 号：P59[天文地球—地球化学]