Trautvetter’s Maple Regeneration Potential in the Mountain Forests of the Republic of North Ossetia–Alania

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DOI: 10.17238/issn0536-1036.2017.1.30

Abstract

Trautvetter’s maple or high-mountain maple (Acer Trautvetteri Medv.) is a forest-forming spe-cies in the forests of North Ossetia. Growing in the mountains at a height of 1100…2500 meters above sea level, it forms the simple structured stands. As a rule, Trautvetter’s maple forms pure maple forests at the upper boundary of its distribution and mixed maple forests at the bottom. The objects of research are pure and mixed maple forests in some natural boundaries of the Re-public of North Ossetia–Alania. They are located in various conditions of mountainous relief and at different height above sea level. The goal of research is an assessment of regeneration potential of high-mountain maple forests and the success of natural regeneration of Trautvetter’s maple in different conditions of the distribution area. Conventionally, we divided the site strip of maple forests into three zones: the upper zone – 1601 m above sea level and more; the medium belt – 1251…1600 m above sea level; the lower zone – 1250 m above sea level and less. Regeneration potential of the high-mountain maple forests is implemented both by seed and vegetative propa-gation. Under the canopy of the stand the undergrowth of vegetative origin is dominated. The young growth of seed origin is found in exposed places, in mineralized areas. The num-ber of such undergrowth is rarely more than 600 trees per Ha. Although the undergrowth of vegetative origin predominates, its mortality is some times greater than that of seed origin. Despite a large supply of seeds (25.8…58.4 thousand pcs./Ha), the natural regeneration of maple by seeds under the canopy of the parent stand is very difficult due to the strong grass cover, the dense leaf litter layer, mass seed damage by entomofauna and diseases. The ground shade density is 0.2…0.3 % of the shade density in the exposed place.

Authors

Kh.M. Khetagurov, Candidate of Biological Sciences, Associate Professor

Affiliation

Gorsky State Agrarian University, ul. Kirova, 37, Vladikavkaz, 362040, Republic of North Ossetia–Alania, Russian Federation; e-mail: zaz81@inbox.ru

Keywords

high-mountain maple forest, Trautvetter’s maple, natural regeneration, under-growth, understory, plant stand

For citation

Khetagurov Kh.M. Trautvetter’s Maple Regeneration Potential in the Mountain Forests of the Republic of North Ossetia–Alania. Lesnoy zhurnal [Forestry journal], 2017, no. 1, pp. 30–39. DOI: 10.17238/issn0536-1036.2017.1.30

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Received on April 08, 2016