Рубрики:
SYLVESTRIS L.
GROWTH
CLIMATE
TRANSITION
DYNAMICS
DENSITY
AUXIN
Кл.слова (ненормированные):
provenance trials -- Scots pine -- tree-ring width -- latewood content
SYLVESTRIS L.
GROWTH
CLIMATE
TRANSITION
DYNAMICS
DENSITY
AUXIN
Кл.слова (ненормированные):
provenance trials -- Scots pine -- tree-ring width -- latewood content
Аннотация: Tree-ring width and latewood content were studied to assess the response of wood to growing conditions. Samples were taken from the trees of six Scots pine climatypes with contrast origin, grown in the conditions of provenance trials in southern taiga of Central Siberia (Boguchany forestry) and forest-steppe of Western Siberia (Suzun forestry). A comparative analysis of variance of mean values of the studied features between the climatypes within each test point and between the points is carried out. Correlation analysis was used to analyze the dynamics of the studied traits and as their response to weather conditions over a long period. It was revealed that in the forest-steppe conditions maximal radial increments for all climatypes were observed on average at the age of 9 and in southern taiga at the age of 12-16. Tree-ring width of the climatypes from the south is significantly lower in the forest-steppe conditions than that of of the representatives of northern origin. Climatypes transferred from a warmer climate to southern taiga are characterized by significantly larger values of tree-ring width than in the northernmost of the studied ones. The latewood content decreases in all studied climatypes of pine in southern taiga in comparison with forest-steppe. Significant response of the latewood content of climatypes in forest-steppe is observed not only with average monthly weather conditions of the second part of vegetation period but also with the first. It indicates a higher sensitivity of their wood structure to the complex of climatic and ecological conditions in the provenance trials of forest-steppe compared with southern taiga. The research results show that the Boguchany climatype is genetically stable in terms of the average values of tree-ring width and latewood content in forest-steppe and southern taiga.
WOS
Держатели документа:
Russian Acad Sci, VN Sukachev Inst Forest SB RAS, Fed Res Ctr, Krasnoyarsk Sci Ctr,Siberian Branch, 50 Str 28, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Prosp Svobodnyy 79, Krasnoyarsk 660041, Russia.
Доп.точки доступа:
Kuzmin, S. R.