Biotectonics - a Methodological Basis of Research of Forest Stands Growth
The purpose of work is to enter forest experts into the world of some regularities of tree growth and forest stand, based on fundamental properties of the material and life organization, to show the ways of researches transference from empirical methods of knowledge, dominating in a dendrology, (supervision and experiment) on methodological level of objectively existing natural regularities that will allow to increase scientific efficiency of researches. Methods of supervision and experiment, applied in a dendrology, don't provide the drawing up opportunities of mathematical model of a tree growth- the main research object of forest experts; they provide only empirical, fragmentary and local nature of the revealed regularities. Ultimate goal of any scientific research is mathematical model drawing up of studied object or the phenomenon. The mathematical model is an approximate description of any phenomena class outside, expressed by means of mathematical symbology. Still the ultimate objective of the tree growth studying, representing the high-organized material substance, hasn’t been achieved. The way of problem solving of mathematical model of tree growth drawing up on the basis of use of the fundamental growth law - the law spiral-logarithmic cumulative expansion, which is based on fundamental properties and forms of the organization of a material and life, is offered. The law spiral-logarithmic cumulative expansion is a mathematical model of growth which reflects the change of organism mass with age. Algebraic expression of the Gold spiral is Ρ = ae <sup>kϕ</sup>. The mathematical model of forest stand growth represents set of mathematical models of the trees growth, making a forest stand. The law spiral-logarithmic cumulative expansion, expressed graphically by Gold spiral, unites all main properties of the material organization (pi, an e-natural, golden section F and the main form of material movement and the life organization - heliciform rotation) is the most important instrument of research of tree and forest stand growth.