3D Visualization Of Afforestatioin Plan And Designin Weibei Rainfed Highland Based On "3S" Technology

Afforestation planning and design is an indispensable important link in forestryengineering construction program,is directly related to forestry project of ecological benefit,social benefit and economic benefit.With the development of the construction of forestry informationization in China,it is possible to realize the digital,informationization and visualization management of afforestation planning.With GIS as the core of "3S" technology has been widely used at various stages of resourceful forestry management,through the use of “3S”technology integration can realize to the forestry geographic space information in real-time,dynamic,3D visualization management.This article takes the Hengshuihe basin as the study area,according to the Forest Inventory information and The project base of “The loess plateau in the middle reaches of the Yellow River efficient vegetation configuration technology popularization”,Using RS,GPS and GIS technology,Mainly about the present situation of the basin land types,afforestation planning and design results of virtual three dimensional reality research,establishing river basin graphics database and attribute database,model library construction afforestation tree species,planting vegetation landscape configuration of 3D visualization,for visual management of the construction of a demonstration forest and Weibei Rainfed Highland basin vegetation restoration visualization monitoring to provide technical support.Through this study,the following main conclusions are obtained:(1)Compared with the traditional afforestation planning and design method,the methods that based on “3S” technology,greatly improve the accuracy and efficiency of afforestation planning and design work,for subsequent forestry related work provides a new train of thought.(2)Three dimensional visible result of afforestation planning and design which establish by DEM and the remotesensingnumeral picture,provided a good means for the visualization management of this Hengshuihe basin.(3)Based on “3S” technology to realize the afforestation planning and design and 3D visualization results in the study area,for Weibei rainfed highland afforestation planning design and management,efficient vegetation monitoring provides a good theoretical and technical support.(4)The three-dimensional display and spatial analysis method based on GIS provides strong decision support for the dynamic simulation,risk and benefit evaluation of forestry.