Growth and formation of Scots pine stands in Eastern Polissia of Ukraine

Autorzy

• Anatoly М. Zhezhkun State Enterprise ‘Novgorod-Siverska Forest Research Station’, Novgorod-Siverskyi, Chernihiv region, 16000, Ukraine,
  e-mail: desna-90@ukr.net

Abstract

The purpose of the research is to study the current state, features of growth and formation of Scots pine (Pinus sylvestris L.) stands in Eastern Polissia of Ukraine.
The structure of pine stands by origin, age, the density of stocking, site indices, forest types and health condition was analysed. Features of the formation of stands were studied at the permanent sample plots. Visual assessment of health condition, as well as signs of pest and disease damage of trees, other defects and external signs that caused stem defects was carried out. The age structure of pine stands was not optimal: there was an excess of mature stands and a lack of young stands. The health condition of mixed pine stands was relatively better than that of pure pine stands. Mixed pine stands were characterised by high biological resistance and accumulated significant wood stock under regular sylvicultural maintenance. The dynamics of forestry and evaluation indicators of reference pine stands were evaluated and comparison of their growth with stocked pine stands was performed.

Keywords

• reference stands
• health condition
• age structure
• Pinus sylvestris