Phenological timings of leaf budburst with climate change in Japan

Published Date
Agricultural and Forest Meteorology
13 March 2008, Vol.148(3):512–516, doi:10.1016/j.agrformet.2007.10.002
Short communication

Author 

• Hideyuki Doi ^a,,
 
• Izumi Katano ^b

• aSchool of Aquatic and Fishery Sciences, University of Washington, Box 355020, Seattle, WA 98195, USA
• bAqua Restoration Research Center (ARRC), Public Works Research Institute, Kawashima, Kasada-machi, Kakamigahara, Gifu 501-6021, Japan

Received 12 February 2007. Revised 30 September 2007. Accepted 3 October 2007. Available online 19 November 2007.

Abstract

Phenological timing of leaf budburst in plants is important for growth, since early budburst timing extends the growth period of the plant. We estimated the effect of climate change on the phenological budburst timing of four trees throughout four sites in Japan, a region with few studies on this topic. The leaf budburst date of plants has advanced or been stable during the last five decades in these four Japanese localities. This fact is due to the negative relationship between dates and temperature using multiple regression models, observed at all sites. Climate change has shifted budburst phenology in Japan with the increase of spring temperatures. However, precipitation did not show any effect on budburst timing. At two sites, budburst dates of three tree species had not remarkably changed or delayed throughout the past five decades. There were differences between localities at the same latitude.

Keywords

Phenology

Air-temperature

Precipitation

Long-term research 

Global warming

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  Corresponding author. Tel.: +1 206 221 6884; fax: +1 206 685 7471.

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