Sytnyk O. Forestry features and field-protective role of different structure windbreaks in Right Bank Forest-Steppe Zone

Object - the field-protective role of different constructed windbreaks as component of the soil-protective system in Right Bank Forest-Steppe. Purpose - substantiation of field-protective windbreaks optimal constructions and determination of their field-protective role in of Right Bank Forest-Steppe. Methods - forestry researches were made by typical methods of forest measurement and forestry. Field-protective windbreaks Influence on the field grounds - by the methods developed in forest amelioration, soil science and agronomics. In according to basic conformities of windbreaks Influence on the field grounds mathematical models have been developed. Graphic and analytical methods have been applied for comparison of obtained results. Novelty - first for the terms of Right Bank Forest-Steppe system researches of field-protective role of different constructed windbreaks have been conducted. They include study of forestry structure and growth of windbreaks and their influence on the field grounds. The methods of the field experiment have been improved in relation to the system study of field-protective afforestation. The optimal constructions of windbreaks which have biological firmness and high field-protective efficiency have been developed. Approbation of new indexes in forest amelioration (integral soil improvement and coefficient of evenness of windbreaks ameliorative influence) have been realized. The mathematical models of estimation of the windbreaks positive influencing on the field grounds are developed with the purpose of determination of their optimum construction. Results of researches is recommended to use for application to production in the Right Bank Forest-Steppe for creation of windbreaks, that will allow increasing efficiency of field-protective afforestation of the region. Branch - forestry.