A Study On Land Survey Database Construction And Quality Control

The land is the basis of development of human society. All of human production and life are inseparable from the land. However,sustained and rapid development of China’s economy has increased the demand for land. Conflicts between humans and the land are also increasingly prominent. In recent years with China’s industrial structure constantly adjusted and the use of land changing faster,Therefore,the establishment of rural land survey database is very necessary. grasp the types and status of land use accurately, establish the land survey database and analyze the problems and reasons, which is for enhancing land management and the overall layout and the intensive use of of land, is an urgent need for sustainable social and economic development and growth mode.The paper is based on Hefei Land Survey database construction projects,which is established by technology development center of land and resources of Hefei. First of all, in accordance with the requirements of the county-level database construction, program design and construction process of land survey database are formulated. In addition, DOM production, Interpretation of remote sensing images, production of survey base map, Notes outside the industry survey is elaborated.Then, Concrete steps and Data obtained about establishing the database, data preprocessing and other aspects are researched. Next taking Luyang District as an example, the land surveys database is completed. Finally,after the analysis of causes of spatial data quality problems and quality control of land survey,it proposes quality control methods and evaluation model for spatial data. In the end the assessment of land survey database of Luyang district is made.