The Appraisal To Land Development And Consolidation Project And The Road Network Layout In It Based On Remote Sensing Technology

Land development and consolidation is an effective method to maintain the total quantity dynamical equilibrium of the agricultural land in our country. The reasonable road network layout in the project area can ensure the production and life carry on smoothly Along with the expansion of different rank land development and consolidation project, the appraisal to the projects and the road network layout in the project area becomes more and more important.The paper first summarizes the correlative theories and the basis of land development and consolidation and the road network plans, as well as the present situation of the appraisal to the domestic and foreign research, then analyses the development trend of RS technology, as well as the application in land management and agricultural, and then brings forward that using RS technology to appraise land development and consolidation and road network layout, studies the theory base of the appraisal work, and brings forward the technology plan of appraisal. The result of the experiment in the test region confirms that this method has the obvious superiority compared to the traditional method.The paper researches, and selects the test region, collects the data on the spot, and the RS image of the area, brings forward the content of RS-appraisal to land development and consolidation and road network layout, and establishes the RS-appraisal system according to the related legal provision of Land development and consolidation and the countryside road network construction.The paper processes and interprets the remote sensing image of the test region. Carrying on the pretreatment to the image, and the key point is the geometry fine adjustment. And we gather the ground control data using GPS, and match them with the image homologue, use quadratic multinomial to adjust the image, use checking points to compare with it and carry on the precision analysis. Then it carries on the data fusion using the Pan sharpening method, and carries on the specific scope image cutting according to needs.The paper carries on the unsupervised classifying processing to the image by Self-Organizing. It edits, merges and revises the classified result by combining the field data and the visual interpretation, and obtains the final classified result. It carries on the statistics to the classified result, distills the target value which needs. Compared with the data on the spot, it carries on the precision analysis.The paper eventually makes expectation to remote sensing technology using in soil quality evaluation and rural road network planning.