杉木人工林成熟林分林木生長及生物量之探討

Tree Growth and Biomass of a Mature China-Fir (Cunninghamia Lanceolata) Plantation

顏添明(Tian-Ming Yen) ； 李久先(Joou-Shian Lee) ； 黃凱洛(Kai-Luo Huang) ； 劉兆昌(Chao-Chang Liu)

《中華林學季刊》 37卷2期 (2004/06) Pp. 157-168

https://doi.org/10.30064/QJCF.200406.0004

摘要

本文旨在探討杉木人工林成熟林分之林木生長及生物量，研究區域位於台灣中部八仙山事業區十文溪生態系經營示範區內第111林班之杉木人工林，採用16株樣木進行林木生長研究及葉、幹、枝等生物量分析。採用數學模式建立胸徑及其他相關介量之關係式，並以生長模式模擬樹高、胸高斷面積和材積之生長過程及探討地上部幹、枝、葉等生物量隨時問變化之發展。就生長預測之結果顯示杉木材積平均生長量達最大之時期約接近60年，而地上部幹、枝之百分比隨直徑級之增加而增加，葉之百分比則隨直徑級之增加而遞減。本研究所得之結果，將可提供杉木人工林經營之參考。

關鍵字

杉木 ； 生物量 ； 生長模式

並列摘要

The purpose of this study was to discuss tree growth and biomass of mature China-fir (Cunninghamia lanceolata). The study area is location in the central part of Taiwan, at compartment no.111, Pa-Hsien-Sha working circle and Shyr-Wen-Shi demonstration zone. Data of this study were collected from 16 sample trees of a mature China-fir plantation. We analyzed tree growth, biomass of stem branch and foliage by sample trees. Mathematical functions were applied to estimate relationships between DBH and other characteristics; growth models were applied to simulate growth process of tree height, basal area and volume and biomass development of stem, branch, and foliage aboveground. In growth estimation, maximum average increment of volume occurred near 60 year. Percentage of branch and stem were increased with diameter class, and the proportion of percentage of foliage was decreased with diameter class. The results will provide a basis information for China-fir plantations management.

並列關鍵字

China-fir(Cunninghamia lanceolata) ； biomass ； growth models