Aboveground Carbon Contents and Storage of Three Major Taiwanese Conifer Species

台灣主要三種針葉樹種地上部之碳含量及碳貯存量

顏添明(Tian-Ming Yen) ； 哀力（民頁）(Lee-Min Ai) ； 李介祿(Chieh-Lu Li) ； 李久先(Joou-Shian Lee) ； 黃凱洛(Kai-Luo Huang)

《台灣林業科學》 24卷2期 (2009/06) Pp. 91-102

https://doi.org/10.7075/TJFS.200906.0091

摘要

本研究旨在探討台灣三種主要針葉樹種－紅檜、柳杉及杉木之地上部碳貯存量。分別測定林木不同部位生物量之碳含量比例(PCC)，結果顯示PCC在林木部位內所有樹種皆以葉部最高，其餘在各部位的順序則隨樹種而有所不同，此外在紅檜和杉木兩樹種之PCC隨著DBH增加而呈遞增的趨勢。在林木層級上，以成對比較T檢定分析以PCC為基礎所推估之碳貯存量（各別部位之PCC×生物量）及傳統方式所推估之碳貯存量（碳含量以50%計算），所得結果顯示三種樹種用此二種方式推估碳貯存量在統計檢定上皆呈現顯著性差異，採用傳統方式所推估之碳貯存量較以PCC為基礎所推估之碳貯存量為高，在紅檜將高估3.96%，柳杉將高估1.83%，杉木則將高估0.89%。本研究亦建構此三種樹種之碳貯存量及胸徑之相對關係式，用以推估林分之碳貯存量。此外，以線性模式所建立之材積與地上部之轉換係數，紅檜、柳杉及杉木分別為309.05、274.33及190.34 kg m^(-3)。

關鍵字

碳貯存 ； 紅檜 ； 柳杉 ； 杉木 ； 相對關係模式 ； 轉換係數

並列摘要

This research presents estimations of the aboveground carbon storage of 3 major Taiwanese conifer species: Taiwan red cypress (Chamaecyparis formosensis Matsum.), Japanese cedar (Cryptomeria japonica D. Don), and China fir (Cunninghamia lanceolata (Lamb.) Hook.). The percent carbon content (PCC) of the biomass of different tree portions was determined for these species. We found that the PCC was higher in the foliage of all species, while the PCC in other portions of the trees varied with tree species, and the mean PCC of trees increased with the diameter class for both Taiwan red cypress and China fir. At the tree level, using the method based on determining the PCC of different tree portions (the PCC method) and the conventional method (using 50% as the carbon content) to estimate carbon storage of trees revealed significant differences for all species by the t-test for paired comparisons. The conventional method showed higher estimates of carbon storage than the PCC method by 3.96, 1.83 and 0.89% for Taiwan red cypress, Japanese cedar, and China fir, respectively. A allometric models were developed to estimate the carbon storage of the 3 species based on the diameter at breast height (DBH). Moreover, the transformation coefficients between the volume and aboveground carbon storage of trees by a linear regression model were 309.05, 274.33 and 190.34 kg m^(-3) for Taiwan red cypress, Japanese cedar, and China fir, respectively.

並列關鍵字

carbon storage, Taiwan red cypress Chamaecyparis formosensis Matsum. ； Japanese cedar Cryptomeria japonica D. Don ； China fir Cunninghamia lanceolata Lamb. Hook. ； allometric model ； transformation coefficient