VS-OSCILLOSCOPE: SIMULATION OF TREE-RING IN SIBERIA

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: International Multidisciplinary Scientific Geoconference (SGEM 2016); Albena, BULGARIA; Albena, BULGARIA

Год издания: 2016

Ключевые слова: Process-based model, Parameterization, VS-oscilloscope, Tree-ring width, Tree-ring growth, FOREST-STEPPE, GROWTH

Аннотация: Tree-ring records are annually resolved, well replicated, and can be calibrated and validated against the instrumental record. We analyze relationships between climate and tree-ring data using the VS-Oscilloscope (parameterization software of process-based tree-ring Vaganov-Shashkin model). The obtained approach can provide useful data to better understand how tree growth there is controlled by climate conditions. Scots Pine (Pinus sylvestris) was selected as a tree species in the work. Wood samples were collected at the site in 25 km distance from meteorological station "Minusinsk", southern Siberia. The key goals of the study are: to assess a performance of the VS-Oscilloscope on semiarid territories; to obtain "optimal" tree-ring growth parameters during the calibration time interval and check them for the verification period; and to understand how climate principal factors can affect on ring formation, to evaluate differences in climate forcing on tree-ring growth between growing seasons when wide and narrow rings were formed. Simulated tree-ring growth indexes significantly correlate to initial tree-ring chronology. Outputs of the modeling demonstrates that start and end of growth season are influenced by temperature, while rest period of growth is limited by precipitation. That fact confirmed by natural field observations. Moreover the analysis of specific growing seasons when wide and narrow rings were formed show us how daily rainfall and temperature affect on tree-ring growth rate for particular years. The Lazarus Code of the VS-oscilloscope and distributive package (free usinglicense) can be downloaded from the http://vs-gennsu/downloads/. Technical questions can be addressed to Ivan Tychkov: ivan.tychkov@gmail.com.

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Издание

Журнал: WATER RESOURCES, FOREST, MARINE AND OCEAN ECOSYSTEMS CONFERENCE PROCEEDINGS, SGEM 2016, VOL II

Номера страниц: 623-630

ISSN журнала: 13142704

Место издания: SOFIA

Издатель: STEF92 TECHNOLOGY LTD

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