原生闊葉樹種復育造林之研究

本研究探討臺灣原生闊葉樹種，於東勢林管處、臺大實驗林及南投林管處針對高海拔果園、中海拔竹林、低海拔茶園、檳榔園、果園回收進行復舊造林，且造林木已達六年生者做抽樣調查，並針對光蠟樹、青剛櫟、臺灣櫸三種造林樹種進行分析。結果顯示海拔及不同的前生土地利用型皆會不同程度地影響林木生長表現。光蠟樹在茶園前生地的生長表現優於檳榔園前生地，在竹林前生地的生長表現最差。青剛櫟不論海拔也不論前生地類型皆生長良好，最適合造林。臺灣櫸的生長亦不受前生地類型影響，然海拔增加會使平均樹高略微降低，亦適合造林選用。

關鍵字

闊葉樹種；復舊造林；生長表現

並列摘要

This study explored the growing potentials of native broadleaf tree species planted in various reclaimed areas of the previous land uses. Data were sampled from three regions at the Dongshih Forestry Culture Park, the NTU Experimental Forest, and the Nantou Forest District Office, including land uses of high-elevation reclaimed orchards, mid-elevation reclaimed bamboo forests, low-elevation reclaimed tea plantations, betel nut plantations, and orchards. The analysis focused on three afforestation tree species, namely, Fraxinus griffithii, Quercus glauca, and Zelkova serrata. Results showed that elevation and former land use affected the growth of the three tree species differently. The growth of F. griffithii on former tea plantations was better than on former betel nut plantations, and the worst was on former bamboo forests. The growth of Q. glauca was well regardless of the elevation and the type of former land use, so it is suitable for rehabilitating different former land uses. Lastly, the growth of Z. serrata was not affected by the type of former land use, but the average tree height was slightly reduced with increasing elevation, so it is also suitable for reforestation.

並列關鍵字

Broad-leaved tree ； reforestation ； growth performance

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