刚毛柽柳群落特征及其生态、生理适应性

中国沙漠

2003, Vol. 23

Issue (4): 446-451

研究论文

刚毛柽柳群落特征及其生态、生理适应性

张道远^1,2, 杨维康^1,2, 潘伯荣^1,2, 尹林克^1,2

1. 中国科学院新疆生态与地理研究所, 新疆乌鲁木齐 830011;
2. 中国科学院吐鲁番沙漠植物园, 新疆吐鲁番 835008

Characters of Tamarix hispida Willd Communities and Its Ecological & Physiological Adaptation

ZHANG Dao-yuan^1,2, YANG Wei-kang^1,2, PAN Bo-rong^1,2, YIN Lin-ke^1,2

1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2. Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan 835008, Xinjiang, China

全文: PDF(285 KB)

摘要： 对新疆境内柽柳属植物的分布与群落类型进行了研究,结果表明:①刚毛柽柳喜盐、耐水湿,多分布在河流两岸、湖沼边缘等地下水位较高、盐分较重的地区,并形成以其为建群种的盐漠;②群落植物组成贫乏,以古地中海退却过程中发展起来的地中海至中亚成分为主,多为旱生植物或盐地植物;③在前人工作基础之上,根据群落种类组成与生境相结合的分析结果,将刚毛柽柳群落划分为3大群丛组;④刚毛柽柳对盐碱生境的适应是由于体内具有某些生理调节功能,如通过积累渗透调节物质Pro、调控离子通道、调节细胞膜透性、降低水势等多种途径来抵抗水分胁迫,通过根部拒盐、体内耐盐及泌盐腺泌盐来达到耐盐碱的目的;⑤刚毛柽柳盐漠属于比较脆弱的生态系统,仅具有相对稳定性,要加以保护。

关键词： 刚毛柽柳; 群落特征; 生态、生理适应性; 盐漠

Abstract: The ecological and physiological adaptations of Tamarix hispida Willd and characters of its communities are studied through field investigation.The following results are obtained:① T.hispida is a salt-tolerant shrub,and often distributes on river or lake bank.② The floristic composition of community is very simple,the fundamental component is the Mediterranean and Central-Asian elements and the majority of them are xerophytes or halophytes that developed during the ancient Mediterranean withdrew.③ According to salt content and underground water depth,three sub-communities are provided.④ The adaptation to salt environment of T.hispida lies in resisting water loss and regulating salt contents in the body.⑤ T.hispida salt desert is relatively frail and should be prevented from overgrazing or over-disafforesting.At last,a distribution map of T.hispida in Xinjiang is given in the paper.

Key words: Tamarix hispida community structure ecological and physiological adaptation desert

收稿日期: 2002-07-26 出版日期: 2003-08-20

Q948.1

基金资助: 中国科学院生物区系特支费项目及中科院"西部之光"项目资助

作者简介: 张道远(1973-),女(汉族),安徽人,在职博士,助理研究员。主要从事荒漠区优势植物资源生物多样性保护及柽柳科研究。E-mail:Daoyuanzhang@163.net

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引用本文:

张道远, 杨维康, 潘伯荣, 尹林克. 刚毛柽柳群落特征及其生态、生理适应性[J]. 中国沙漠, 2003, 23(4): 446-451.

ZHANG Dao-yuan, YANG Wei-kang, PAN Bo-rong, YIN Lin-ke. Characters of Tamarix hispida Willd Communities and Its Ecological & Physiological Adaptation. JOURNAL OF DESERT RESEARCH, 2003, 23(4): 446-451.

链接本文:

http://www.desert.ac.cn/CN/ 或 http://www.desert.ac.cn/CN/Y2003/V23/I4/446

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