A5018606390- Tree-ring climate responses
- Plant Water Relations and Carbon Dynamics
- Climate change and permafrost
- Ecology and Vegetation Dynamics Studies
- Climate variability and models
- Forest ecology and management
- Geological Studies and Exploration
- Soil Carbon and Nitrogen Dynamics
- Engineering Technology and Methodologies
- Forest, Soil, and Plant Ecology in China
- Atmospheric and Environmental Gas Dynamics
- Peatlands and Wetlands Ecology
- Remote Sensing and Land Use
- Advanced Decision-Making Techniques
- Geology and Paleoclimatology Research
- Hydrology and Watershed Management Studies
- Fire effects on ecosystems
- Bioenergy crop production and management
- Forest Biomass Utilization and Management
Siberian Federal University
2015-2022
Phenological responses of vegetation to climate, in particular the ongoing warming trend, have received much attention. However, divergent results from analyses remote sensing data been obtained for Tibetan Plateau (TP), world's largest high-elevation region. This study provides a perspective on phenology shifts during 1960-2014, gained using an innovative approach based well-validated, process-based, tree-ring growth model that is independent temporal changes technical properties and image...
Significant alterations of cambial activity might be expected due to climate warming, leading growing season extension and higher growth rates especially in cold-limited forests. However, assessment climate-change-driven trends intra-annual wood formation suffers from the lack direct observations with a timespan exceeding few years. We used Vaganov-Shashkin process-based model to: (i) simulate daily resolved numbers differentiating cells; (ii) develop chronologies onset termination specific...
New insights into the intra-annual dynamics of tree-ring formation can improve our understanding tree-growth response to environmental conditions at high-resolution time scales. Obtaining this information requires, however, a weekly monitoring wood formation, sampling that is extremely time-intensive and scarcely feasible over vast areas. Estimating timing cambial xylem differentiation by modeling thus represents an interesting alternative for obtaining important other means. Temporal...
The response of vegetation to climate change is special interest in regions where rapid warming coupled with moisture deficit. This raises the question limits plants’ acclimation ability and consequent shifts cover. Radial growth dynamics climatic were studied Scots pine (Pinus sylvestris L.), Siberian larch (Larix sibirica Ledeb.), silver birch (Betula pendula Roth.) forest-steppe, for elm (Ulmus pumila L.) steppe South Siberia, as indicators state dynamics. Climate–growth relationships...
More than 60% of tree phytomass is concentrated in stem wood, which the result periodic activity cambium. Nevertheless, there are few attempts to quantitatively describe cambium dynamics. In this study, we develop a state-of-the-art band model development, based on kinetic heterogeneity cambial zone and connectivity cell structure. The describes seasonal development an exponential function under climate forcing can be effectively used estimate production for individual trees. It was shown...
Networks of tree-ring data are commonly applied in statistical reconstruction spatial fields climate variables. The importance elevation to the climatic interpretation networks is addressed using 281 station precipitation records, and a network 79 chronologies from different species range elevations eastern Mediterranean. Cluster analysis identifies 6 groups, delineated principally by site elevation. Correlation suggests several clusters linked homogenous elevational moisture regimes....
The goal of this research report is to describe annual precipitation reconstruction from Pinus sylvestris trees on three sites in the Abakan region, located Minusinsk Depression, at confluence Yenisei and Rivers, Russia. study was performed during 4th international summer course "Tree Rings, Climate, Natural Resources Human Interaction" held Abakan, 5-19 August 2013. reconstruction, for 12-month total ending July growth year, based a reliable replicable statistical relationship between...
Climate change projections forecast most significant impacts on high-latitude forest ecosystems. Particularly, climate warming in boreal regions should increase fire severity and shorten its return interval. These processes can the dynamics of forests as younger stands become more dominating with a shift from gymnosperm to angiosperm. However, despite angiosperm’s phenological physiological traits have high potential for ecophysiological dendroclimatological studies Siberia, they been rarely...
There are many different methods and tools for data analysis in dendrochronology.Modeling is one of them.One the main issues modeling a choice factors.Сlimatic (temperature precipitation) most common affordable them.Based on Vaganov -Shaskin model new algorithm visual parameterization three-ring growth -VS-oscilloscope was developed. Algorithm tested species woody plants -Larix gmelini Picea obovata. A results help to evaluate conditions area plants, based dynamic two climate variables:...
To describe the mechanism of tree-ring formation in woody plants influencing by leading environmental factors is one most urgent problems modern dendroecology.Changing growth rate at selected intervals growing season determined complex influence climatic (e.g.temperature and soil moisture).Using modified algorithm simulation model Vaganov-Shashkin -VS-oscilloscope seasonal cells tree ring simulated work.New mathematical approach developed to estimate a cambial activity cell production...
МНОГОЛЕТНЯЯ ИЗМЕНЧИВОСТЬ АНАТОМИЧЕСКИХ ПАРАМЕТРОВГОДИЧНЫХ КОЛЕЦ ХВОЙНЫХ ПОРОД В КРИОЛИТОЗОНЕ СРЕДНЕЙ СИБИРИ 1