透過您的圖書館登入
IP:18.220.13.70
  • 期刊

福山地區鋸葉長尾栲不同冠層二氧化碳固定功能之研究

A Study of CO2 Fixation in Different Canopies of Castanopsis Carlesii in Fu-Shan

摘要


本研究選取福山植物園之鋸葉長尾栲(Castanopsis carlesii)測定其在自然生育環境下,不同冠層之光合作用速率。試驗結果鋸葉長尾栲的光飽和點為782 μmol‧m^(-2)‧s^(-1)。淨光合作用速率以中冠層最高,下冠層次之,上冠層最差。以日淨光合作用速率計算,鋸葉長尾栲6.5小時每單位葉面積可固定CO2 5.81 g,蒸散量H2O 460 g。其固定CO2能力低於白榕、大葉楠及烏心石,但高於台灣檫樹。此研究結果將提供臺灣常綠闊葉樹碳吸存計算之基本參數。

並列摘要


This study has estimated the photosynthetic rate of an evergreen broad-leaved tree species, Cryptocarya chinensis, in Fu-Shan. Different canopy levels of C. chinensis show distinct efficiency of net photosynthetic rate. The saturation point of photosynthesis is estimated to be 782 μmol‧m^(-2)‧s^(-1). With 6.5 hrs of photosynthesis, leaves of C. chinensis were able to sequestrate and transport CO2 5.81 g‧m^(-2) and H2O 460 g‧m^(-2), respectively. The CO2 fixation efficiency of C. chinensis is lower than those of Ficus benjamina, Machilus kusanoi, and Michelia compressa, but is higher than that of Sassafras randaiense. The results provide valuable information for estimating carbon sequestrations of broad-leaved forests in Taiwan.

被引用紀錄


陳忠義(2017)。以三種方法探討平地造林樹種碳吸存〔博士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU201700488

延伸閱讀