Research On Updating Investigation Of Land Use And Database Construction Process Based On "3S" Technology

The land is one of the human survival and development important resources. Diversifies day by day along with the social economy, the national territory resource management department's office work and the scope also unceasingly are expanding, original depended on the manual operation, the blueprint management pattern already more and more cannot satisfy the highly effective management the need. Service diverse, blueprint complex, form account many, the data originates much, the request precision is high is the national territory profession remarkable characteristic, For well the management and the sharing land utilization present situation data, builds the county (city) the level land utilization database is the national territory resource management works under the new situation need, is the national territory resource management work an important link which makes great strides forward to the modern management. This article has conducted the research under this big background to the land utilization present situation updating surveying and the database construction process.First, we make the Digital Line Graphic with land use Detailed Survey graphs. Then rests on DLG, references DOM, the change and the examination and approval material, we carry on digitized gathering, labels kind of code, and to not definite kind of key sign note. The digitized achievement is the newest land utilization present situation electron data.Next, the output digitization data and a DOM superimposition standard breadth graph, and launches the field operation by this as the work base map, to the place kind which indoor interprets carries on verifies one by one, revises not correctly the kind, fills in the field operation handbook.Once more, we carry on the revision according to the field operation chart and the investigation handbook to the right amount data, delete or increase essential factor, finally cause the data to be consistent with the actual situation. Finally, this article has carried on the analysis to the land utilization data, had pointed out the achievement application several directions, have carried on the summary to this work, proposed the innovation place, and has made the research forecast.