A Research of Litterfall in Warm-temperate Evergreen Broad-leaved Forest in Chungtzekuan area

• Main Authors: Chia-ling Lee, 李佳玲
• Other Authors: Tsung-Hsin Hsieh
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/23211567817388919482

碩士 === 國立臺南大學 === 自然科學教育學系碩士班 === 94 === A 2-ha permanent plot is 200 m long and 100 m wide at Chungtze Kuan area of southern Taiwan and is dominated by Fagaceae and Laurceae. The purpose of this study is to understand the pattern of litterfall in different habitats. 40 traps were placed systematically along the transet from east to west in the plot. All samples were collected monthly and seperated into leaves, branches, flower, fruit, buds and miscellaneous fraction. Annual litterfall from January 2004 to December 2005 was 3.4 t/ha and 5.01 t/ha, respectively, of whith 2.24 and 3.32 t/ha were leaves, 0.49 and 1.02 branch, 0.16 and 0.2 flowers, 0.12 and 0.11 fruit, 0.19 and 0.23 buds. The seasonal pattern of litterfall showed two pronounced peaks : during the growthy season and the typhoon period. According to the types of litterfall, trees could be divided into spring-falling, autumn-winter-falling, typhoon, double peaks and general patterns. Typhoons made branches fall in larger amounts in July and August, but leaves were not apparently affected. A total of 87 species,belonging to 42 families and 69 genera, were collected. Among thern 75 were tree, 11 lianas and 1 fern. The dominant species was Cyclobalanopsis longinux (21.68％ of leaf litterfall), followed by Machilus thunbergii (17.17％）and Castanopsis carlesii (13.10％）. The litterfall showed no significance difference in three habitats, but increased by altitude. Compared to the other studies, the litterfall of Chungtzekuan area is lower than the other broad-leaved forest, except Chi-lan mountain and Hui-sun experimental forest in Taiwan.