• 作者： 楊棋明; 許仁傑; 施志豐
• 作者服務機構： 中央研究院植物研究所
• 中文摘要： 鴛鴦湖自然保護區海拔1,760公尺，全年低溫低光度高濕度。本研究測定採集自該湖四週的17種苔蘚植物和2種水生植物的葉綠素a/b比和對光度的適應性。苔蘚植物的葉綠素a/b比等於或超過2.17，總平均約2.41，遠低於水生植物的3.08，但遠高於文獻上關於苔蘚和地錢植物的比值。苔蘚植物亦能調節其葉綠素a/b比以適應強光照射，但範圍較小。
• 英文摘要： Chlorophyll (Chl) a/b ratios were determined for 17 species of bryophytes collected from habitatswith 100% relative humidity, low temperature, low light environment and 1760 m elevation in Yuan-YangLake nature reserve of northern Taiwan. Two hydrophytic plants collected from the lake were used forcomparison. All mean ratios were more than or equal to 2.17. The average Chl a/b ratio of these 17 bry-ophytes was around 2.41, lower than the value of 3.08 found in two hydrophytes but greatly higher thanthe values for mosses and liverworts reported in the literature. The bryophytes can adjust their Chl ex-pression with higher Chl a/b ratio within a small range to adapt to intense illumination (250 μmole m s).
• 中文關鍵字： bryophytes; chlorophyll; liverwort; moss; shade plant; sun plant; Yuan-Yang Lake.
• 英文關鍵字： --