Short description of important scientific result: Methodological bases of population botany and ecology of plants are developed. The perspective of their use in practice is shown:
A number of concepts: 1) 3D model of the ecological amplitude of plant habitats "; 2) polycentric model of the plant; 3) model for determining the stage of vegetation vegetation steppe; 4) the model for determining the area of the projection of the leaf blade according to metric measurements; 5) model of the life cycle of a plant from the category of life forms "shrub"; 6) model of the plant life cycle from the category of life forms "Stolon-forming perennial grassy"; 7) model of distribution of plants in the population system by morpho-functional groups.
A number of calculation formulas for determining the following indicators: 1) phyto-indicative shading index; 2) phyto-indicative index of soil wealth accessible to plants by nitrogen forms; 3) the coefficient of shape correction for the leaf blade of the plant; 4) coefficient of vegetation dipression o