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1
題名:Characteristics of the acidic environment of the Yuanyang Lake (Taiwan)     (12點)
鴛鴦湖酸性環境之特性研究
著者:Jiunn-Tzong Wu(吳俊宗) ;Shih-Chieh Chang(張世杰) ;Yun-Sen Wang(王永昇) ;Yu-Fa Wang(王裕發) ;Ming-Kuang Hsu(徐明光)
出版地區:台灣
出版城市:台北市
學科:生命科學
關鍵字:鴛鴦湖 ; 酸性 ; 湖沼學 ; 附生植物 ; 陸域植生 ; 湖泊酸化 ; Acidity ; Epiphyte ; Lake acidification ; Limnology ; Terrestrial vegetation ; Yuanyang Lake
刊名:Botanical Bulletin of Academia Sinica
頁碼:17-22
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

鴛鴦湖位於北台灣中高海拔(1,670m)之自然保護區內,是個酸性湖,本研究從湖水之水質理化因子、入流支流之水質特性及以附生苔蘚進行淋洗試驗,探討湖水呈酸性之成因。此湖泊之酸鹼度不僅有季節的差異,湖水在不同地點其酸度也有不同,成為梯度現象。隨此梯度現象,水中營養鹽類、總有機碳、導電度等也有起伏變化。入流於鴛鴦湖之六條支流間,其酸鹼值及水中所含營養鹽類及導電度等各有不同。從相關分析顯示,水域之酸度主要與水中之有機物含量有關,此有機物係源自湖周森林。當發森林中附生之苔蘚進行淋洗試驗時,所測得淋洗液均為酸性,其酸度隨不同種類而異,而與湖水酸鹼度相近,證明湖周森林中之附生植物,應是造成湖水酸性化的主要原因。此外,有苔蘚著生也會造成土壤之淋釋液成為酸性。不過,在此區域所收集之雨水均為酸雨,以此酸雨淋洗苔蘚時,會降低淋洗之酸度值,顯示酸雨也對湖水酸化扮演若干角色,但是其貢獻不若附生植物為大。
Yuanyang Lake is an acidic alpine lake located in northern Taiwan. The lake's acidity displays both spatial and temporal variations and is correlated with concentrations of organic and inorganic carbon, and with some cations in the lake water. The factors relating to such characteristics were studied, with particular focus on acid precipitation and the role of biological communities in the watershed. Twelve species of mosses and liverworts were collected from the watershed and used in an elution experiment. The results indicated that the pH of natural rainwater was significantly reduced following contact with these epiphytes. The acidity of Yuanyang Lake may largely be a result of natural acid leaching from the vegetation, rather than acidic precipitation.


    

本卷期目次
Botanical Bulletin of Academia Sinica
Adventitious shoot regeneration from stem internode explants of Adenophora triphylla (Thunb.) A. DC. (Campanulaceae)-an important medicinal herb/ Chung-Chuan ChenSuh-Jau ChenHsin-Sheng Tsay
Characteristics of the acidic environment of the Yuanyang Lake (Taiwan)/ Jiunn-Tzong WuShih-Chieh ChangYun-Sen WangYu-Fa WangMing-Kuang Hsu
Purification and characterization of glutamine synthetase from the unicellular cyanobacterium Synechococcus RF-1/ Hso-Freng YuanChiung-Min WangHan-Wei Kung
Vase life Eustoma grandiflorum as affected by aluminum sulfate/ Li-Jen LiaoYu-Han LinKuang-Liang HuangWen-Shaw Chen
Detection of leaf-associated fungi based on PCR and nucleotide sequence of the ribosomal internal transcribed spacer (ITS) in Miscanthus/ Yu-Chung ChiangChang-Hung ChouPei-Ray LeeTzen-Yuh Chiang
Mechanism of host cell death induced by infection of Escherichia coli with the c2 clear-plaque mutant of phage f1/ Shan-Hua LinWen-Ping ChenTsong-Tsong Kuo
Cold-acclimation and root temperature protection from chilling injury in chilling-sensitive mungbean (Vigna radiata L.) seedlings/ Mon-Yaw ChangSwu-Ling ChenChung-Fen LeeYih-Ming Chen
Karyomorphology of Biebersteinia Stephan (Geraniaceae) and its systematic and taxonomic significance/ Jian-Quan LiuTing-Nong HoShi-Long ChenAn-Min Lu
The genus Tubocapsicum (Solanaceae)/ Zhi-Yun ZhangChing-I Peng
High frequency somatic embryogenesis and plant regeneration of an elite Chinese cotton variety/ Bao-Hong ZhangRong FengFang LiuQing-Lian Wang
 
   
 
   

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