Current state and silvicultural and reclamation efficiency coniferous field-protective forest belts of the Khakass anti-erosion station

Abstract

Field-protective forest strips are the basis of the ecological framework of agricultural territories. Siberian larch (Larix sibirica Ledeb.), Scotch pine (Pinus sylvestris L.) are the main tree species used in field-protective afforestation of the Shirinskaya steppe of the Republic of Khakassia. The studies were carried out in forest belts consisting of coniferous tree species of ordinary and staggered planting methods. Here, using modern techniques, temporary trial plots were laid. The aim of the work was to study the current state of forest belts, consisting of coniferous tree species, and their silvicultural and reclamation efficiency in the area where the Khakass anti-erosion station is located. The features of the sanitary condition and silvicultural and reclamation efficiency of forest stands on trial plots are analyzed depending on the planting methods growing on different types of soils. It has been established that a good and satisfactory condition of trees (1.0-1.2 points) and the highest silvicultural and reclamation score (5a) 34-55 years after planting are observed in larch forest belts with a rare staggered arrangement of trees growing on the southern and ordinary chernozems. The unsatisfactory condition of the trees (2.3-3.0 points) and the reduced silvicultural and reclamation assessment (4a) 55-58 years after planting are noted in pine and larch forest belts with rows of trees growing on chernozem-like sandy loamy soil and southern medium loamy chernozem. These features must be taken into account when designing a new generation of coniferous forest belts in other areas of the Khakass anti-erosion station, where they have not been created before. Measures have been planned to extend the service life of the steppe coniferous field-protective forest belts in the near future.