惠蓀林場紅檜人工林與闊葉樹次生林之種豐富度模式分析

Analysis of Species Abundance Models for Taiwan Red Cypress Plantations and a Secondary Broadleaf Forest at the Hue Sun Forest Station

蔡尚惪(Shang-Te Tsai) ； 林志銓(Chih-Chuan Lin) ； 黃立彥(Li-Yen Huang) ； 呂金誠(King-Chemg Lu) ； 歐辰雄(Chern-Hsiung Ou)

《台灣林業科學》 22卷2期 (2007/06) Pp. 193-204

https://doi.org/10.7075/TJFS.200706.0193

摘要

本研究使用惠蓀林場紅檜人工林與闊葉樹次生林之植群監測調查資料，藉由幾何序列、對數序列、截斷對數常態分布以及折枝模式等四種分布模式之分析，以探討植物群落之結構的差異。由剖析紅檜人工林與闊葉樹次生林中之植物組成與結構得知，以喬木層植物而言，疏伐前除1998年調查中紅檜人工林之C2樣區與闊葉樹次生林之H1樣區，以及1999年調查中紅檜人工林之C2樣區最符合幾何序列外，餘則最符合對數序列或截斷對數常態分布，而疏伐後之紅檜人工林樣區皆最符合對數序列，綜合判斷多數樣區之喬木層植物結構屬於演替中期階段的型式；此外，地被層植物之分析結果發現，無論是不同季節或疏伐前後，各樣區皆最符合對數序列或截斷對數常態分布，且多數最符合對數序列，顯示此等地被層植物結構亦屬於演替中期階段的型式。

關鍵字

種豐富度模式 ； 幾何序列 ； 對數序列 ； 截斷對數常態分布模式 ； 折枝模式

並列摘要

The purpose of this study was to analyze the plant community structure based on monitoring data collected at Taiwan red cypress plantations and a secondary broadleaf forest at the Hue Sun Forest Station, central Taiwan via a geometric series, logarithmic series, truncated log normal distribution, and broken stick model. Before thinning, the overstory species abundance data, recorded in 1998 from plot C2 of a Taiwan red cypress plantation and plot Hi of a secondary broadleaf forest, and in 1999 from C2 of the Taiwan red cypress plantation, showed a significant fit to the geometric series; whereas the data from other plots showed a significant fit to the logarithmic series or truncated log normal distribution. After thinning, the logarithmic series best fit all of the datasets.. The overstory structure showed that all plots were in the middle successional stage. Furthermore, all data of the understory approximated a logarithmic series or truncated log normal distribution. It was obvious that the understory was also in the middle successional stage.

並列關鍵字

species abundance model ； geometric series ； logarithmic series ； truncated log normal distribution model ； broken stick model