五種桉樹在東臺地區造林適應性初步試驗

Preliminary Results on the Adaptability of Five Eucalypt Species Planted in Eastern Taiwan

甘偉航(Wei-Hang Kan) ； 胡大維(Ta-Wei Hu) ； 楊政川(Jeng-Chuan Yang)

《林業試驗所研究報告季刊》 5卷2期 (1990/06) Pp. 99-109

https://doi.org/10.7075/BTFRI.199006.0099

摘要

試驗期間民國71年至77年，試驗樹種5種（見表2），栽培地點3處（見表1）。以樹種爲處理，在不同地區造林，每一地區按逢機區組設計，重複4次，進行試驗，結果如下：
三個栽培地區，五種桉樹之合計平均生長量，以太麻裏最大，成功最小。各種桉樹之生長表現，爲隨地區而異；在太麻裏地區，玫瑰桉生長最佳，青皮桉最差；成功、水璉地區，青皮桉生長最好，而玫瑰桉角萼桉生長較差。各栽培地區之桉樹，均會遭受風害，其中成功地區之風害較烈，各樹種受風害情形爲，玫瑰桉、角萼桉風害較重，青皮桉受害較輕。材積生長，樹齡6.5年之桉樹，以生長優良之單株估算，可達經濟利用之標準，實際單位面積平均材積年生産量，照目前組放經營方式，在短伐期內，得不到商業利用之價值。

關鍵字

桉樹 ； 適應性 ； 風害 ； 成活 ； 生長量

並列摘要

This experiment was carried out from 1982 to 1988 at 3 locations of eastern Taiwan; five species of eucalypts, each as a treatment, were arranged in a random block with 4 replications. Spacing was about 2m apart with 3m at intervals. The planting density was 10 plats in plot (60m^2) equivalent to 1,200-1,700/ha. The results indicated that, in the tree planting locations, the total mean growth and survival of eucalypts at T'ai-Ma-Li is the best, and Ch'eng-kung is the worst. The growth and development of eucalypts depend primarily on planting sites. At T'ai-Ma-Li, where the elevation is higher, the growth of Eucalyptus grandis is the best and has a higher survival rate; in Ch’eng-Kung and Shi-Lien, the site conditions are most suitable for the planting of E. torelliana. However, since the Ch’eng-Kung region was frequently subject to strong winds, E. Tereticornis and E. grandis were heavily damaged by winds but E. torelliana was only slightly damaged. In order tounder stand the growth potentiality of eucalypts cultivated in east Taiwan, data of recent measurements indicate that the volume growth of the best individuals grown over a 6.5-year period are achieving the standard merchantable size; however, in reality, according to the present rough practice, the annual average volume growth will no meet the commercial scale in a short cutting cycle.

並列關鍵字

Adaptability ； Eucalypt ； Survival ； Growth ； Wind damage