干旱区生态环境知识资源中心(Arid): A preliminary study of water use strategy of desert plants in Dunhuang, China

Arid

	A preliminary study of water use strategy of desert plants in Dunhuang, China
	Cui Yongqin; Ma Jianying; Sun Wei; Sun Jiahuan; Duan Zhenghu
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2015
卷号	7 期号:1 页码:73-81
英文摘要	Water is a restrictive factor for plant growth and ecosystem stability in arid and semiarid areas. The dynamics of water availability in soils and water use by plants are consequently critical to ecosystem functions, e.g. maintaining a high resistance to the changing climate. Plant water use strategies, including water-use efficiency (WUE) and the main water source that a plant species utilizes, play an important role in the evaluation of stability and sustainability of a plantation. The water use strategies of desert plants (Tamarix chinensis, Alhagi sparsifolia, Elaeagnus angustifolia, Sophora alopecuroides, Bassia dasyphylla and Nitraria sphaerocarpa) in three different habitats (saline land, sandy land and Gobi) in Dunhuang (located in the typical arid area of northwestern China) were studied. The stable isotope of oxygen was used to determine the main water source and leaf carbon isotope discrimination was used to estimate the long-term WUE of plant species in the summer of 2010. The results suggest that: 1) the studied desert plants took up soil water below the depth of 80 cm; 2) T. chinensis in the three habitats used deeper soil water and T. chinensis in the Gobi site had higher WUE than those in the saline land and the sandy land. The results indicated that desert plants in Dunhuang depended on stable water source and maintained high WUE to survive in water limited environments.
英文关键词	desert plant stable isotope water source water-use efficiency Dunhuang
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5390462
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335473
作者单位	Cui Yongqin, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Ma Jianying, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Sun Jiahuan, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Duan Zhenghu, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Sun Wei, Institute of Grassland Science, Northeast Normal University, Ministry of Education Key Laboratory of Vegetation Ecology, Changchun, Jilin 130024, China.
推荐引用方式 GB/T 7714	Cui Yongqin,Ma Jianying,Sun Wei,et al. A preliminary study of water use strategy of desert plants in Dunhuang, China[J],2015,7(1):73-81.
APA	Cui Yongqin,Ma Jianying,Sun Wei,Sun Jiahuan,&Duan Zhenghu.(2015).A preliminary study of water use strategy of desert plants in Dunhuang, China.Journal of Arid Land,7(1),73-81.
MLA	Cui Yongqin,et al."A preliminary study of water use strategy of desert plants in Dunhuang, China".Journal of Arid Land 7.1(2015):73-81.