Water relation characteristics of Alhagi sparsifolia and consequences for a sustainable management

CORC > 新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所(2010年以前数据)

	Water relation characteristics of Alhagi sparsifolia and consequences for a sustainable management
	Zeng ; FJ ; Zhang ; XM ; Foetzki ; A ; Li ; XY ; Runge ; M
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2002
卷号	45 期号:s1 页码:125-131
ISSN号	1006-9313
通讯作者	Zeng, FJ, Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China
中文摘要	Water relation characteristics of the desert legume Alhagi sparsifolia were investigated during the vegetation period from April to September 1999 in the foreland of Qira oasis at the southern fringe of the Taklamakan Desert, Xinjiang Uygur Autonomous Region of China. The seasonal variation of predawn water potentials and of diurnal water potential indicated that Alhagi plants were well water supplied over the entire vegetation period. Decreasing values in the summer months were probably attributed to increasing temperatures and irradiation and therefore a higher evapotranspirative demand. Data from pressure-volume analysis confirmed that Alhagi plants were not drought stressed and xylem sap flow measurements indicated that Alhagi plants used large amounts of water during the summer months. Flood irrigation had no influence on water relations in Alhagi probably because Alhagi plants produced only few fine roots in the upper soil layers. The data indicate that Alhagi sparsifolia is. a drought-avoiding species that utilizes ground water by a deep roots system, which is the key characteristic to adjust the hyper-arid environment. Because growth and survival of Alhagi depends on ground water supply, it is important that variations of ground water depth are kept to a minimum. The study will provide a theoretical basis for the restoration and management of natural vegetation around oasis in and regions.
学科主题	水文地理学及水资源
收录类别	SCI
公开日期	2011-08-19
内容类型	期刊论文
源URL	[http://ir.xjlas.org/handle/365004/10600]
专题	新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据)
推荐引用方式 GB/T 7714	Zeng,FJ,Zhang,et al. Water relation characteristics of Alhagi sparsifolia and consequences for a sustainable management[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2002,45(s1):125-131.
APA	Zeng.,FJ.,Zhang.,XM.,Foetzki.,...&M.(2002).Water relation characteristics of Alhagi sparsifolia and consequences for a sustainable management.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,45(s1),125-131.
MLA	Zeng,et al."Water relation characteristics of Alhagi sparsifolia and consequences for a sustainable management".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 45.s1(2002):125-131.