Сибирский федеральный университет

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

Конференция: Water resources. Forest, marine and ocean ecosystems ?; Albena, Bulgaria; Albena, Bulgaria

Год издания: 2016

Идентификатор DOI: 10.5593/SGEM2016/B32/S14.082

Ключевые слова: process-based model, parameterization, VS-oscilloscope, tree-ring width, Tree-ring 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 semi-arid 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-genn.ru/downloads/. Technical questions can be addressed to Ivan Tychkov: ivan.tychkov@gmail.com. The work was supported by the Russian Science Foundation (RSF project # 14-14-00219)

Журнал: 16th International Multidisciplinary Scientific GeoConferences SGEM 2016

Выпуск журнала: II. Book 3

Номера страниц: 623-630

Издатель: Общество с ограниченной ответственностью СТЕФ92 Технолоджи

• Tychkov I.I. (Siberian Federal University)
• Popkova M.I. (Siberian Federal University)
• Shishov V.V. (Siberian Federal University)
• Babushkina E.A. (Khakas Technical Institute)

• РИНЦ (eLIBRARY.RU)