干旱区生态环境知识资源中心(Arid): 生态脆弱带不同区域近缘优势灌木的生理生态学特性

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	生态脆弱带不同区域近缘优势灌木的生理生态学特性
其他题名	Ecophysiological characteristics of kindred dominant shrubs in different areas of ecologically vulnerable zone
	周海燕 1; 张景光 1; 李新荣1 ; 王新平1 ; 赵亮 2; 龙利群 1
来源期刊	生态学报
ISSN	1000-0933
出版年	2005
卷号	25 期号:1 页码:168-175
中文摘要	小叶锦鸡儿、中间锦鸡儿和柠条锦鸡儿分别为中国北方生态脆弱带典型区域--科尔沁沙地、毛乌素沙地和腾格里沙漠的优势灌木.为了探讨生长在地理位置相距很远的不同气候类型区、但亲缘关系较近的沙漠植物种之间特性的差异及近缘种间引种成功的可能性,对3种灌木在原产地和引种地(腾格里沙漠)的气体交换、叶绿素荧光参数、beta胡萝卜素和脯氨酸累积等特性进行了对比研究,结果显示:各区优势灌木的气体交换特征不同,主要依照区域光照和温湿条件的不同组合而变化,各区域的环境条件组合最利于其建群种的生长;引进种对引种地环境变化的反应调节较乡土种敏感;地理位置相距较近的近缘种间生理特性相近,引种易于成功.
英文摘要	Caragana microphylla Lam, Caragana intermedia Kuang et H. C. Fu and Caragana korshinskii Komar are dominant shrubs in three typical regions of the ecologically vulnerable zone in northern China-Horqin sandy land, Mu Us sandy land and Tengger desert, respectively. In order to understand the differences in characteristics of desert plant species with close genetic relationship but in different climatic zones that are far away from each other in geographic location and to explore the possibility for successful introduction of kindred species, a comparative study was conducted on gas exchange characters, chlorophyll fluorescent parameters, \|3carotin content and proline accumulation rate of these three species in their native habitats and introduced area (Tengger desert). The results show that dominant shrubs of different regions had different gas exchange features i which varied with the interplay between light intensity, temperature and humidity of the regions. The environmental conditions specific to each region were most favourable for its dominant shrub. Introduced species were more sensitive to the environmental changes of new place than local species, and kindred species from adjacent distribution regions displayed similar physiological properties and, therefore, can be successfully introduced.
中文关键词	生态脆弱带 ; 干草原 ; 荒漠草原 ; 草原化荒漠 ; 小叶锦鸡儿 ; 中间锦鸡儿 ; 柠条锦鸡儿 ; 生理生态学特性
英文关键词	ecologically fragile zones semiarid steppe desertified steppe steppified desert Caragana microphylla Caragana intermedia Caragana korshinskii ecophysiological characteristics
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY ; PLANT SCIENCES
WOS研究方向	Environmental Sciences & Ecology ; Plant Sciences
CSCD记录号	CSCD:1871825
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206512
作者单位	1.中国科学院寒区旱区环境与工程研究所沙坡头开放试验站, 兰州, 甘肃 730000, 中国; 2.兰州大学干旱农业生态实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	周海燕,张景光,李新荣,等. 生态脆弱带不同区域近缘优势灌木的生理生态学特性[J]. 兰州大学,2005,25(1):168-175.
APA	周海燕,张景光,李新荣,王新平,赵亮,&龙利群.(2005).生态脆弱带不同区域近缘优势灌木的生理生态学特性.生态学报,25(1),168-175.
MLA	周海燕,et al."生态脆弱带不同区域近缘优势灌木的生理生态学特性".生态学报 25.1(2005):168-175.