Рубрики:
RADIAL GROWTH
PINUS-SYLVESTRIS
SCOTS PINE
LARIX-GMELINII
TEMPERATURE
SOIL
RESPONSES
CLIMATE
PERMAFROST
ACCUMULATION
Кл.слова (ненормированные):
Northern taiga -- Permafrost -- Radial growth -- Climatic response -- Soil conditions
RADIAL GROWTH
PINUS-SYLVESTRIS
SCOTS PINE
LARIX-GMELINII
TEMPERATURE
SOIL
RESPONSES
CLIMATE
PERMAFROST
ACCUMULATION
Кл.слова (ненормированные):
Northern taiga -- Permafrost -- Radial growth -- Climatic response -- Soil conditions
Аннотация: While the forest-tundra zone in Siberia, Russia has been dendroclimatologically well-studied in recent decades, much less emphasis has been given to a wide belt of northern taiga larch forests located to the south. In this study, climate and local site conditions are explored to trace their influence on radial growth of Gmelin larch (Larix gmelinii (Rupr.) Rupr.) trees developed on permafrost soils in the northern taiga. Three dendrochronological sites characterized by great differences in thermo-hydrological regime of soils were established along a short (ca. 100 m long) transect: on a river bank (RB), at riparian zone of a stream (RZ) and on a terrace (TER). Comparative analysis of the rate and year-to-year dynamics of tree radial growth among sites revealed considerable difference in both raw and standardized tree-ring width (TRW) chronologies obtained for the RZ site, characterized by shallow soil active layer depth and saturated soils. Results of dendroclimatic analysis indicated that tree-ring growth at all the sites is mostly defined by climatic conditions of a previous year and precipitation has stronger effect on TRW chronologies in comparison to the air temperatures. Remarkably, a great difference in the climatic response of TRW chronologies has been obtained for trees growing within a very short distance from each other. The positive relation of tree-ring growth with precipitation, and negative to temperature was observed in the dry site RB. In contrary, precipitation negatively and temperature positively influenced tree radial growth of larch at the water saturated RZ. Thus, a complicate response of northern Siberian larch forest productivity to the possible climate changes is expected due to great mosaic of site conditions and variability of environmental factors controlling tree-ring growth at different sites. Our study demonstrates the new possibilities for the future dendroclimatic research in the region, as various climatic parameters can be reconstructed from tree-ring chronologies obtained for different sites. (c) 2013 Elsevier GmbH. All rights reserved.
Полный текст,
WOS,
Scopus
Держатели документа:
[Kirdyanov, Alexander V.
Prokushkin, Anatoly S.] SB RAS, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Tabakova, Maria A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
Доп.точки доступа:
Kirdyanov, A.V.; Prokushkin, A.S.; Tabakova, M.A.