一种利用数据融合的森林资源“一张底图”建设方法  

A construction method of“one base map”of forest resources using data fusion

作　　者：陈超[1] 陶旸[1] 赫春晓[2] CHEN Chao;TAO Yang;HE Chunxiao(Provincial Geomatics Center of Jiangsu,Nanjing 210013,China;Jiangsu Provincial Research Institute of Surveying&Mapping,Nanjing 210013,China)

机构地区：[1]江苏省基础地理信息中心,江苏南京210013 [2]江苏省测绘研究所,江苏南京210013

出　　处：《测绘通报》2023年第3期155-159,共5页Bulletin of Surveying and Mapping

基　　金：江苏省自然资源科技项目(2021041)。

摘　　要：建设“一张底图”是开展自然资源调查监测工作的前提。本文基于国土三调和森林资源二类调查数据,研究了“一张底图”建设的流程:对两套数据进行联合相交后,得到了兼顾两者图形与属性的融合数据;针对面积不足100 m^(2)和介于100~400 m^(2)的碎小图斑,分别采取了不同的融合方法;最后人工核查与处理细长图斑及剩余碎小图斑。试验表明,本文的融合方法能够消除碎小图斑,形成以国土调查数据为基础、兼顾森林资源专项属性的底图数据,为后续自然资源调查监测工作的开展打下基础。The construction of“one base map”is the premise of natural resources investigation and monitoring.Based on the third national land survey,survey data of forest resources planning and design,this paper studies the construction process of“one base map”:after the joint intersection of the two sets of data,the fusion data considering both graphics and attributes is obtained;Different fusion methods are adopted for small patches with an area of less than 100 square meters and between 100~400 square meters;Finally,the long and thin spots and the remaining small spots are checked and processed manually.Experiments show that the fusion method in this paper can eliminate small patches and form base map data based on land survey data and taking into account the special attributes of class II survey,so as to lay a foundation for the follow⁃up investigation and monitoring of natural resources.Experiments show that the fusion method in this paper can eliminate small patches and form base map data based on land survey data and taking into account the special attributes of forest resources,so as to lay a foundation for the follow⁃up investigation and monitoring of natural resources.

关 键 词：自然资源调查监测 国土三调 二类调查 数据融合 专项调查 

分 类 号：P208[天文地球—地图制图学与地理信息工程]