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Developing drought stress index for monitoring Pinus densiflora diebacks in Korea

Cho, Nanghyun; Kim, Eunsook; Lim, Jong-Hwan; Seo, Bumsuk; Kang, Sinkyu

Abstract (englisch):
Background: The phenomenon of tree dieback in forest ecosystems around the world, which is known to be associated with high temperatures that occur simultaneously with drought, has received much attention. Korea is experiencing a rapid rise in temperature relative to other regions. Particularly in the growth of evergreen conifers, temperature increases in winter and spring can have great influence. In recent years, there have been reports of group dieback of Pinus densiflora trees in Korea, and many studies are being conducted to identify the causes. However, research on techniques to diagnose and monitor drought stress in forest ecosystems on local and regional scales has been lacking.
Results: In this study, we developed and evaluated an index to identify drought and high-temperature vulnerability in Pinus densiflora forests. We found the Drought Stress Index (DSI) that we developed to be effective in generally assessing the drought-reactive physiology of trees. During 2001–2016, in Korea, we refined the index and produced DSI data from a 1 × 1-km unit grid spanning the entire country. We found that the DSI data correlated with the event data of Pinus densiflora mass dieback compiled in this study. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000120923
Veröffentlicht am 07.07.2020
DOI: 10.1186/s41610-020-00156-9
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 07.2020
Sprache Englisch
Identifikator ISSN: 2288-1220
KITopen-ID: 1000120923
HGF-Programm 12.02.02 (POF III, LK 01) Vegetation climate- and land use system
Erschienen in Journal of ecology and environment / Ecological Society of Korea
Verlag Ecological Society of Korea
Band 44
Heft 1
Seiten Article no: 15
Vorab online veröffentlicht am 01.07.2020
Schlagwörter Dieback, Standardized Precipitation Index, Growing degree days, Pinus densiflora, Drought Stress Index
Nachgewiesen in Scopus
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