为了更好地利用国土调查成果、提高知识利用率，以第三次全国国土调查成果为例，首先针对国土知识空间特征进行空间关联分析，并结合国土知识属性特征，确定国土知识特征关系；再基于国土调查成果属性和时空特征提取国土知识语义关系，构建本体模型，建立模式层；最后融合国土调查数据进行国土知识实体提取、属性抽取，丰富数据层，构建国土调查成果知识图谱。结果表明，该国土调查成果知识图谱扩充了国土知识实体间的关联性表达，顾及了国土知识实体的空间特征表示，实现了国土知识实体间的空间查询功能，可为国土管理和空间规划提供一定的技术支持和土地知识服务。

In order to make better use of the territory survey achievements and improve the utilization rate of knowledge, taking the third territory survey achievements for example, we carried out the spatial correlation analysis according to the spatial characteristics of territorial knowledge,and determined the relationship of territorial knowledge according to the attributes of territorial knowledge at first. Then, based on the attributes and spatio-temporal characteristics of territory survey achievements, we extracted the semantic relation of territorial knowledge,constructed an ontology model, and established the pattern layer. Finally, we fused the territory survey data to extract the territorial knowledge entity and attribute, enrich the data layer, and realize the knowledge graph construction of territory survey achievements. The results show that the knowledge graph of territory survey achievements constructed in this paper expands the relevance expression of territorial knowledge entities,takes into account the spatial characteristic representation of territorial knowledge entities, and realizes the spatial query function between territorial knowledge entities, providing certain knowledge services and technical support for territorial spatial planning and management services.