Study On Measuring Of Forest Based On 3D Laser Scanning Measurement System

This research make use of three dimension laser scanner for collecting information and utilize industry measure technique to handle three dimension image mosaic and distill the gene as DBH,tree height,volume,treecrownvolume and treecrownarea,to form the technical system that based on three dimension laser surveying&mapping system .The meaning of this research is to abundance traditional means of collecting information and Forest Measurement theory . The Three dimension laser scanner can resume the tree diorama in computer so it can offer more and full scale measure value and provide credible data base for bole,the shape of treecrown,volume and biomass.This text carried through the on the spot investigate and experiment sampling work on Xiaolongshan forest office in GanSu province which depends on Nation natural science fund China west circumstance and zoology science bigness plan item《Forest biomass orientation extractive inspect model and technique basic research》.The research mostly make use of three dimension laser scanning and surveying&mapping system to capture and analyze data, at the same time combining the methods of fractal analysis,linearity and nonlinearity regress,error analysis. This text Emphases analysis these problems: feasibility of three dimension laser scanning and surveying&mapping system which applied in forest calculating & surveying in order to workout non-cut stumpage volume table; Based on stumpage scanned data, do the research of fractal character of bole and treecrown, and analysis the growth process of diameter of the tree; Based on scanned data, setting up biomass model and importing treecrownvolume,treecrownarea into the model.Through the sum up of experiment and analysis of data, this research use industry measured technique into forest calculating & surveying which based on the characteristic of forest investigate, then sum up a criterion and applied work flow which can establish the base for the future application. Through the feasibility argumentation of three dimension laser scanning and surveying&mapping system to measure trees which shows that it can by way of the basic data of forest calculating & surveying because the precision of the scanned result is better. This research based on the three dimension laser scanned data , working out the stumpage volume table, and compared with practicable volume which shows that stumpage volume table worked out by scanned data entirely...