臺灣中部蓮華池試驗林的林型及演替

Forest Types and Succession in the Lienhuachih Experimental Forest of Central Taiwan

周富三(Fu-Shan Chou) ； 林文智(Wen-Chih Lin) ； 許原瑞(Yen-Ray Hsui) ； 黃志堅(Chih-Chien Huang)

《台灣林業科學》 35卷4期 (2020/12) Pp. 257-275

https://doi.org/10.7075/TJFS.202012_35(4).0001

摘要

本研究主要目的是調查蓮華池試驗林的森林組成及結構，進行森林分類及建立森林演替的模式。共設置53個20 m×20 m的方形樣區。依據樣區的植相組成使用列表比較法將樣區劃分為銳葉山黃麻－白匏子林型、水金京–鵝掌柴林型、長尾尖葉櫧－茜草樹林型、山香圓－鵝掌柴林型（水同木亞型、大葉楠亞型）及捲斗櫟－黃杞林型。使用皮爾森相關係數，計算降趨對應分析的主要梯度軸與環境因子及植被結構因子之間的相關性，結果顯示林型主要是沿著發育的時間梯度排列，且有2條演替途徑，一條是稜線環境的序列，其途徑從銳葉山黃麻－白匏子林型到水金京－鵝掌柴林型到長尾尖葉櫧－茜草樹林型再到捲斗櫟－黃杞林型；另一條演替途徑是溪谷環境的序列，其途徑從銳葉山黃麻－白匏子林型到水金京－鵝掌柴林型再到山香圓－鵝掌柴林型（水同木亞型、大葉楠亞型）。

關鍵字

蓮華池試驗林 ； 林型 ； 演替

並列摘要

This study aimed to investigate the forest composition and structure in the Lienhuachih Research Experimental Forest for forest classification and establishing a successional model. Fifty-three 20×20-m plots were established. Forest types, based on the floristic composition of the plots, were classified using tabular comparison methods. Five forest types and 2 subtypes were identified and described, Trema cannabina-Mallotus paniculatus forest type, Wendlandia formosana- Schefflera octophyll forest type, Castanopsis cuspidate-Randia cochinchinensis forest type, Turpinia formosana-Schefflera octophyll forest type (Ficus fistulosa subtype and Machilus kusanoi subtype), and Cyclobalanopsis pachyloma-Engelhardia roxburghian forest type. Relationships of the detrended correspondence analysis (DCA) major gradient axis with environmental variables and vegetation structure variables were calculated using Pearson correlation coefficients. Results show that these forest types were interpreted as levels in a successional sequence ranging from an early-successional stage to a mid-successional stage and late-successional stage. There were 2 successional pathways. One was found in the ridge environment sere, from the Trema cannabina- Mallotus paniculatus forest type and Wendlandia formosan-Schefflera octophyll forest type to the Castanopsis cuspidate-Randia cochinchinensis forest type and Cyclobalanopsis pachyloma-Engelhardia roxburghian forest type. The other pathway was in the more-humid valley environment sere, which ranged from the Trema cannabina-Mallotus paniculatus forest type to Wendlandia formosan-Schefflera octophyll forest type and Turpinia formosana-Schefflera octophyll forest type (Ficus fistulosa subtype and Machilus kusanoi subtype).

並列關鍵字

Lienhuachih Experimental Forest ； forest type ； succession