Meleshchuk О. Features of natural renewal and forming of native plantation are in the subors of Western Polissia

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0413U000934

Applicant for

Specialization

  • 06.03.03 - Лісознавство і лісівництво

07-03-2013

Specialized Academic Board

Д 35.072.02

Ukrainian national forestry university

Essay

Research object - oak-pine plantation in the subors of Western Polissia. Aim - to educe the forestrythe price features of forming of oak-pine plantation, dynamics of forestry processes under act of different methods of deck-houses of the main use, to work out the system of forestry measures in relation to a seminal recreation and forming of native high-performance plantation in the subors of Western Polissia. Methods of researches - forestry the price, comparative ecology, agrochemical, geobotanical, biological, mathematically-statistical. Scientific novelty - first in the conditions of the investigated region detailed studies of the typology, agerelated andvertical structure of pine plantation, features of appearance of self-seeding, forming of plants of pine-tree are undertaken. Educed substantial disproportion of the agerelated structure of pine-woods. It is marked that oak-pine plantation in the conditions of fresh oak subor markedthe greatest increase in a period from 31 to 50, and by the greatest index of the use of typology potential in age 30 - 70. It is set that in accordance with decile distribution distribution of trees in plantation of fresh oak subor, at the gradual increase of indexes of diameter and height, stocked woods in each grows unevenly of them. Four stages of change of closeness of pine plantation are certain with age is themost substantial reduction (a to 60 amount of individualstakes place under age 20. First in the conditions of Western Polissia system studies of influence of methods of deckhouses of the main use on the feature of appearance forming of plants of pine-tree ordinary and other arboreal breeds, redistribution of organic subs-tances and chemical elements in genetichorizons of soil, dynamics of mycology structure of soil areundertaken, soil-covering and thickness of theforest bedding. The specific tendencies of change of contentof humus, nitrogen, phosphorus, potassium and reductionto acidity are educed in overhead genetic horizons of soilafter felling of maternal tent in number of different waysdeck-houses of the main use. The least intensively ascompared to control (to 15,7%) a humus is washed inoverhead genetic horizon on a section with a group-selection deck house, and the most considerable (on a 30,3 %) reduction to the humus in analysable horizon is observed atthe continuous felling of plantation. Substantial impoveris-hment of specific composition of symbiotes and mykorysa mushrooms is marked in the superficial layer of soil of oak-pine plantation under act of deck-houses of different intensity. Practical value - the system of the forestry measures sent to providing of appearance of reliable naturalrenewal of pine-tree ordinary and forming of native high-performance plantations in the conditions of fresh oak subor of Western Polissia is worked out and approved. The branch of usage : forest economy.

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