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対馬・龍良山の照葉樹林の研究I. 傾度分析, 種変化率, 種多様性


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Title: 対馬・龍良山の照葉樹林の研究I. 傾度分析, 種変化率, 種多様性
Other Titles: Studies in the evergreen broad-leaved forest of Tatera Forest Reserve,Tsushima,Japan.I.Gradient analysis,species turnover and diversity.
Authors: 伊藤, 秀三 / 神野, 展光 / 川里, 弘孝 / 中西, こずえ
Authors (alternative): Itow, Syuzo / Jinno, Nobumitsu / Kawasato, Hirotaka / Nakanishi, Kozue
Issue Date: 31-Jul-1992
Publisher: 長崎大学教養部
Citation: 長崎大学教養部紀要 自然科学篇. 1992, 33(1), p.7-48
Abstract: Ten plots of 0.1-0.05 ha were laid out from 140 m to 560 m above sea level at intervals of 25-70 m. The gradient analysis revealed that distributions of many plant species terminated or started at ca. 400 m. Community similarity, calculated in Percentage Similarity (PS) and Community Coefficient (CC), changed abruptly below and above the 400 m contour, suggesting a change of vegetation structure at this elevation. The spacial turnover rate of species along the altitudinal gradient was calculated in two ways. The average turnover rate, by plotting the log similarity values on the Y-axis against altitudinal difference between plots on the X-axis, was low in tree and shrub species and high in herbaceous species. The zone turnover rate, calculated for an altitude as the average rate among the three neighbouring plots, was high at the 370-440 m belt. This coinsided with the abrupt interchanging pattern in species distributions. Species density per 100 m^2 increased from low to high altitudes, while other indices of speices diversity, S_(100), b, α and H', decreased along the same gradient in all population categories studied.
URI: http://hdl.handle.net/10069/7410
ISSN: 02871319
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 33, No. 1

Citable URI : http://hdl.handle.net/10069/7410

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