The life state of Quercus robur l. in the conditions of Northern Kazakhstan
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KREKOVA, Y., CHEBOTKO, N., SERAFIMOVICH, M.. The life state of Quercus robur l. in the conditions of Northern Kazakhstan. In: Conservation of plant diversity, Ed. 4, 28-30 septembrie 2015, Chișinău. Chișinău: Gradina Botanica (Institut), 2015, Ediția 4, p. 72. ISBN 978-9975-3036-8-2.
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Conservation of plant diversity
Ediția 4, 2015
Simpozionul "Conservation of plant diversity"
4, Chișinău, Moldova, 28-30 septembrie 2015

The life state of Quercus robur l. in the conditions of Northern Kazakhstan


Pag. 72-72

Krekova Y., Chebotko N., Serafimovich M.
 
Kazakh Research Institute of Forestry and Agroforestry
 
 
Disponibil în IBN: 14 mai 2019


Cuvinte-cheie
Quercus robur L., Nothern Kazakhstan, dendrological park, rare species, life state


Teza

Quercus robur L. (pedunculate oak) is a rare and relict species of Kazakhstan included in the Red Book. The tree reaches heights up to 40 m. Q. robur L. is photophilous, wind-resistant, droughtresistant plant. Q. robur L. naturally propagates from acorns, rarely vegetatively. Naturally grows in Europe, Crimea, Caucasus, and the Balkans. Grows in the zone of mixed forests, river valleys, in the steppe zone in the ravines and gullies. It is cultivated as an ornamental and landscaping plant. Q. robur L. is cultivated in many Botanical gardens in Kazakhstan. It is found in the plantings of the cities of Southern Kazakhstan (including Almaty), as well as some localities of Shymkent region. Naturally grows in Ural region, in the floodplain of the rivers Ural and Ilek [1,2]. In connection with a shrinking area under oak forests in Kazakhstan, especially relevant is the question of the preservation and restoration of Q. robur L. Plant introduction in Botanical institutions or conservation of biodiversity ex situ is part of modern techniques necessary to enhance the conservation of natural resources of plant origin. The introduced plants of Quercus robur L. (age 50-62 years), planted in the Dendrological Park of Kazakh Research Institute of Forestry and Agroforestry (Northern Kazakhstan) in oak quarter in 1961-1963, served as object of the study. The Dendrological Park is located on three naturally formed terraces on the shore of Lake Shchuchie in the north-eastern part of Shchuchinsk. The land is flat with a slight slope. The soil of the Dendrological Park is alluvial, to the west, rocky areas are met. The plants were brought from Kondratovskiy nursery as 5 and 2 year-old seedlings. The type of planting is free (landscape biological groups). In the studied plantation, it was laid a test area of 0.065 hectares on which records and measurements of necessary taxation and biometric indicators of all trees were made. The description of the categories of the life state of trees was performed [3]. During the studies, it was identified that studied plantation refers to the VI growth class, the average height was 11.7±0.3 m, and the average trunk diameter was 20.7±1.02 cm and average crown diameter – 4.6±0.3 m. On the category of the life state of trees, the planting refers to the weakened one (78.1%). This is due primarily to the mismatch of the growing conditions and the influence of sharply continental climate. Pests on the trunk and the crown of trees were not found. During the inspection of the tree from top to bottom on the stems of some plants were found frost cracks. In the crown, it was noticed the presence of dead skeletal branches. In addition, the studied plantation crowded by selfseeding, growing in the Dendrological Park of introducents – Acer negundo L., Acer platanoides L., Malus baccata (L.) Borkh., shrubs – Rhamnus cathartica L., Lonicera tatarica L. and Lonicera canadensis Bartr. ex Marsh. Despite the tough growing conditions, Quercus robur L. passes complete cycle of phenological development, fruiting and forms a self-seeding. This species can be grown in Northern Kazakhstan with proper care in landscaping plantings and solitary plantings.