Stem production of Scots pine and black locust stands in Ukraine’s Northern Steppe

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The research paper presents the results of the assessment of the annual stem production of Scots pine (Pinus sylvestris L.) and black locust (Robinia pseudoacacia L.) stands within the Northern Steppe of Ukraine. The research team has developed two- and three-factor regression models for assessing the live biomass stocks for the fractions of the wood and bark of the stems of the Scots pine and black locust stands. The paper also presents the dependences of the live biomass of the components of the stems of the stands on their selected biometric parameters. The direct positive correlation between the fractions of the wood, bark, and stem in total with the factors of age, mean diameter, mean height and stand density for both the studied species has been identified. The results include the distribution of the total stem production of the Scots pine and black locust stands by the state forestry enterprises of the Dnipro region. The mean annual stem production of Scots pine is characterised by lower values (stem wood -2.91 t·ha-1·yr-1, stem bark -0.38 t·ha-1·yr-1) compared with the investigated species - black locust with the stem wood 4.94 t·ha-1·yr-1 and stem bark 1.70 t·ha-1·yr-1. … celý popis

Podrobná bibliografie

Hlavní autor

Viktoriia Lovynska

Další autoři

Petro Lakyda, Svitlana Sytnyk, Ivan Lakyda, Yuriy Gritzan, Anatoliy Hetmanchuk

Typ dokumentu

Články

Fyzický popis

8 ilustrací

Publikováno v

Journal of Forest Science. -- ISSN 1212-4834. -- Roč. 65, č. 12 (2019), s. 461-471

Témata

UKRAINE

STEPPES

state forests

FOREST TREES

PRIMARY PRODUCTIVITY

PINUS SYLVESTRIS

BROADLEAVED TREES

ROBINIA PSEUDOACACIA

Factor analysis

MATHEMATICAL MODELS

GROWTH RATE

BIOMASS

STEMS

TRUNKS

WOOD

BARK

BIOMETRY

DIMENSIONS

DIAMETER INCREMENT

BREAST HEIGHT DIAMETER

HEIGHT

Ukrajina

stepi

státní lesy

lesní stromy

primární produktivita

Pinus sylvestris

listnaté stromy

Robinia pseudoacacia

faktorová analýza

matematické modely

rychlost růstu

biomasa

stonky

kmeny (stonky)

dříví

kůra

biometrika

rozměry

přírůstek průměru

výčetní tloušťka

výška

Popis jednotky

5 grafů, 1 mapa, 2 tabulky

Bibliografie

Literatura na straně 470-471,