Application And Research Of 3S Technology On The Monitoring Of The Afforestation In The Sand And Dust Endangering Beijing-Tianjin Project

This paper describes the applications of 3S technology that based on the remote sensing data sources in forestry and its development at home and abroad.Combined with the application features of remote sensing data sources of SPOT5 and 3S technology, and the current monitoring requirements of project around Beijing and Tianjin sandstorm source,the research has the data source based on the high-resolution remote sensing images of SPOT5 and technological means based on the integrated use of the 3S technology.lt deeply probes the preprocessing flow of SPOT5 image and the rapid extraction method about the subcompartments information of the project afforestation, trying to provide new technological means and methods for the monitoring of Beijing and Tianjin sandstorm source project.The main results of this study:Based on the remote sensing data source of SPOT5 and the integrated applications of 3S technology,it can quickly and efficiently extract the boundary and area information of the project afforestation subcompartments in Dacang Town, while estimating the implementation progress of the reforestation and the actual preservation rate of the project afforestation subcompartments,based on the actual construction plans of the project afforestation.The result shows that 3S technology,based on the data souce of the remote sensing image of SPOT5,is a scientific, practical and effective monitoring means of forestation.It is simple and high-precision for information extraction.lt can provide effective methods for the reforestation monitoring of the Beijing-Tianjin Wind and Dust Source project, and it is the 3S technology based on the high-resolution remote sensing source that provide the scientific basis for the extensive application in the major forestry projects.