A Phenology of Plants Distributed Near the Wind-holes in Jeongseon, South Korea

This study investigated the phenological phases of plant thorough monitoring the phenology of plants between October 15, 2009 and November 20, 2012. The phenological phases were observed at wind-holes at Yeotan-ri in Jeongseon-eup and Unchi-ri in Sindong-eup, Gangwon-do, with regard to vegetative bud burst, leaf out flowering, autumn leaves, and fallen leaves. The vegetative bud burst of Prunus choreiana H. T. Im was initiated on April 2, 2010 and it was bursted on April 16 in 2011 and April 19 in 2012. Its leaf out was started on April 23 (2010), May 11 (2011), and April 24 (2012). The autumn leaves was started to be observed on September 5 in 2012. The leaves began to fall on September 20 in 2012. The vegetative bud burst of Forsythia saxatilis (Nakai) was initiated on the same date as Prunus choreiana H. T. Im. The leaf development was observed on April 23 in 2010. In 2011, however, it was observed six days later (April 29) than the previous year. Moreover, it began to change into autumn leaves on October 22 in 2010. The autumn leaves began to fall on November 18 in the same year. No autumn leaves were observed in 2011, but they began to fall on November 8. Additionally, it began to change to autumn leaves on September 20 in 2012 and to fall on October 22. Given that the phenological monitoring of plants in wind-holes of the research sites is consistently conducted in the long term, the difference of phenology of plants in wind-holes for climate changes can be apparently determined.