Abstract Detail

Ecology

Song, Gwanpil [1], Seo, yeon Ok [1], Jung, Sung-Cheol [2], Cheong, Eunju [3], Kim, Chan-Soo [1].

Characteristics of natural habitats, annual growth and variation of taxonomic characters in wild Prunus yedoensis on Jeju Island, Korea.

We investigated the natural habitats of Prunus yedoensis in Mt. Halla, Jeju and found 94 individuals in wild forest. The wild P. yedoensis were found in three types of places where open in the middle of forest or edges of the forest, deciduous forest, and evergreen broad-leaved mixed forest. On the aspect of the mountain, trees grow in deciduous forest on north-facing slopes and evergreen broad-leaved and deciduous mixed forests on south. Many of P. yedoensis on south slopes were not as good in conditions as ones on north-facing slopes due to the competition with evergreen broad-leaved species. Diameters (DBH) of woody species in the site were measured and results are as follow, P. yedoensis 52.4 cm, Carpinus tschonoskii 50.2 cm, Pinus densiflora 30.8 cm, Pinus thunbergii 36.3 cm, and Prunus spachiana 34.1 cm. The biggest tree of P. yedoensis was 15.5m high and 143cm wide in DBH. According to the IUCN Red List category in terms of the size of natural habitats and the number of individuals, the species is classified critical endangered species (CR, Critical). Characteristics of flowers, length and width of petal, length of style, stamen, pedicel and peduncle, number of flowers per inflorescence, and length of leaf and petiole, varied among the individuals. Annual diameter growth at breast height was analyzed with the core samples from 37 individuals. The average annual growth in diameter was 3.74mm/year and older trees had narrower rings. The DBH had a greatest influence (r=0.304) on the growth among the four factors, height, DBH, age and volume of tree. Five individuals were selected for analysis of relationships with the climatic factor. The average temperature of May of the year had a tendency of negative correlations with the average temperatures (from the previous August through following September). The results showed the characteristics of growth of the individuals in natural habitats, which will facilitate to establish conservation strategy to cope with climate change

1 - National Institute of Forest Science, Warm Temperate and Subtropical Forest Research Center, 1253 Sanghyo-dong, Seogwipo, Jeju-do, 697-050, Republic of Korea
2 - National Institute of Forest Science, Warm-Temperate and Subtropical Forest Research Center, 1253 Sanghyo-dong, Seogwipo, Jeju-do, 697-050, Republic of Korea
3 - Gangwon National Univ., Division of Forest Science, College of Forest and Environment Science, 1 Gangwondaehakgil, Chuncheon, Gangwon-do, 24341, Republic of Korea

Keywords:
wild P. yedoensis
natural habitats
annual growth
variation
morphological characters
biggest tree
climate change.

Presentation Type: Poster
Session: P, Ecology Section Posters
Location: Exhibit Hall/Savannah International Trade and Convention Center
Date: Monday, August 1st, 2016
Time: 5:30 PM This poster will be presented at 5:30 pm. The Poster Session runs from 5:30 pm to 7:00 pm. Posters with odd poster numbers are presented at 5:30 pm, and posters with even poster numbers are presented at 6:15 pm.
Number: PEC005
Abstract ID:123
Candidate for Awards:None