Guangdong Binary Tree Volume Table Of Preparation And Improvement Of Methods

The monitor and estimate of the forest resources are important contents in managements of the forest resources, the estimate of the forest resources is mainly the estimate of of the forest( wood cent), the estimate of volume of single stub is a foundation work in the estimated store of forest.the mensuration of volume of single stub in addition to direct measurement, is mainly to authorized tree volume according to species of tree.currently Extensive tree volumes adopted are unitary tree volume table and duality tree volume table unitary tree volume table contain a dominatedgene , duality tree volume table contain two dominated gene as tree chest and tree high. Currently, duality tree volume table may extrusionunitary tree volume table.tree volumes involves various courses such as mathematics, calculator, ecology etc.. since our nation was found, the our country plunge into a great deal of manpower, material resources to the forest resources, tree authorized volume tables come into being the system of the integrity, tree chest and tree high were measured, thus tree was fell to partition to calculate a tree physical volume, finally there relation was maked use and lead on the whole the duality tree volume tableThis paper is based on the contents above, makes the detailed introduction to the following aspect:The paper analysed organization of sample of established model, gets to set up sample of effectively established model at the scope that the wood chest may appear.Analyzed characteristics of the model of regression, puted forward to of evaluation index sign of the model of regression , investigated data with the forest of Guangdong is applied to analys and evaluate index sign of the model of regression.The paper analysed organization of sample of established model, gets to set up sample of effectively established model at the scope that the wood chest may appear.Nonlinear model must applied The least-squares Minimization Algorithm, optimal power function is maked up of model itself.The basic steps of The tree volume table summarized are applied to data with the forest of Guangdong according to this step.nonline regression theories of mathematics was applied to improve the damping least-squares Minimization Algorithm ,enter necessarily, and the estimated accuracy of t the tree volume model was improved, new iterative formula of the parameter estimated was put forward, new iterative method putted forward was carried on the examination .classic theories of nonline regression and The least-squares Minimization was applied to put forward to the least-squares Minimization Algorithm of resisting error and Resisted Dimission Error gene.according to actual things and researched result of the people of the past, the actually used model was carried on the analysis, compare, evaluate, thus get a best model.summarized, this text expound the basic concept of The tree volume table, basic theories, the basic step, on this foundation ,auther put forward some improved methods.