ДИНАМИКА РАНГОВОГО РАСПРЕДЕЛЕНИЯ ДЕРЕВЬЕВ ПО ВЫСОТЕ В ПОЛЕЗАЩИТНОЙ ПОЛОСЕ С УЧАСТИЕМ ДУБА ЧЕРЕШЧАТОГО (QUERCUS ROBUR L.) И КЛЁНА ОСТРОЛИСТНОГО (ACER PLATANOIDES L.)

Abstract

Protective afforestation is organizing basis of adaptive landscape agriculture. The aim of the study is to distribute the trees of English oak (Quercus robur L.) and Norway maple (Acer platanoides L.) in height to establish the complexity of stand structure. The differentiation of trees by height in the shelterbelt, which is located in the vicinity of the village Zolotarevka, Lugansk region, Stanichno-Lugansk district, has been considered. In the plantation under study, we laid two permanent test plots in accordance with 56-69-83 Industrial Standard. Relative height of each class of the ranked row, reduction numbers and ranks of maple and oak stands, forming a field-protecting strip, have been determined based on the results of enumeration taxation. Reduction numbers and ranks have been determined according to the methodology of L. V. Stonozhenko et al. The authors have revealed that the predominance of leader trees with 26-27 grades in the oak-tree stand of Quercus robur L. (first test plot) is explained by a decrease in the growth rate of the main part of the stand due to the sparse standing of trees. Analyzing the state of the stand, during the formation of the second tier (maple stand on the first test plot), growth and development of oak and is worsened. Thinning can be seen as the final result. The authors emphasize in the work that there is an improvement in the growth and development of English oak when simplifying maple stand (second test plot). The consequence of all these is more complicated form of plantation