干旱区生态环境知识资源中心(Arid): 灌溉量对多枝柽柳水分生理及生长的影响

Arid

	灌溉量对多枝柽柳水分生理及生长的影响
其他题名	Effect of Irrigation Volume on the Water Physiological Characters and Growth of Tamarix ramosissima Shelter Belts along the Tarim Desert Highway
	解婷婷 1; 张希明1 ; 单立山 2; 梁少民 1; 杨小林 1
ISSN	1001-4675
出版年	2008
卷号	25 期号:6 页码:802-807
中文摘要	运用热平衡式茎流计和压力室,对塔克拉玛干沙漠腹地不同水分管理条件下多枝柽柳（Tamarix ramosis-sima）的水分生理及生长特征进行了测定与分析。结果表明：在不同灌溉量条件下,多枝柽柳茎干液流速率的日变化不同,在灌溉量为35 kg/（株.次）和28 kg/（株.次）条件下,茎干液流的日变化曲线呈单峰型,且液流速率较高,变幅较大;但在灌溉量为17.5 kg/（株.次）条件下,其日变化曲线为双峰型,液流速率较低,变幅也较大。随着灌溉量的减少,日平均液流速率逐渐降低,日液流累积量也随之降低,日累积液流量分别为6 643.04 g,5 665.88 g,2 827.81 g。不同灌溉量条件下,多枝柽柳的清晨和午后水势都随着灌溉量的减少而降低,其中灌溉量对清晨水势的影响较大。不同灌溉量条件下,多枝柽柳的基径、新枝长度以及新枝直径都随着灌溉量的减少而减小,其平均生长速率也随着灌溉量的减少而降低。
英文摘要	In this study, the water physiological characters and growth index of Tamarix ramosissima under irrigation with different water volumes are measured and analyzed by using the stem heat-balance technique and press chamber in the hinterland of the Taklimakan Desert. The results show that the daily variation of stem sap flow of T. ramosissima under irrigation with different water volumes is different. Under irrigation with water volumes of 35 kg ~ plant- ~ ~ time- ~ and 28 kg ~ plant- ~ ~ time- ~, the daily variation curve of stem sap flow of T. ramosissima is unimodal, the sap flow velocity and its variation range are high ; the daily variation curve is bimodal under irrigation with water volume of 17.5 kg ~ plant-~ ~ time-~ , the sap flow velocity is low but its variation range is also high. With decreasing irrigation volume, the average daily sap flow velocity and stem sap flow accumulation are gradually decreased, and the daily accumulations of stem sap flow are 6 643.04 g, 5 665.88 g and 2 827.81 g under irrigation with water volumes of 35 kg · plant -1· time - 1, 28 kg · plant -1· time - 1 and 17.5 kg · plant -1· time - 1 respectively. The flow of water in T. ramosissima plants in early morning and at afternoon is gradually decreased with decreasing irrigation volume, and the effect of irrigation volume on the flow of water in early morning is especially significant. The stem diameter, twig length, twig diameter and growth of T. ramosissima plants are gradually decreased with decreasing litigation volume.
中文关键词	多枝柽柳 ; 液流速率 ; 水势 ; 生长特征 ; 灌溉量 ; 水分生理 ; 塔克拉玛干沙漠
英文关键词	Tamarix ramosissima sap flow velocity flow of water growth character irrigation volume water physiology Taklimakan desert.
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:3453419
来源机构	中国科学院新疆生态与地理研究所 ; 甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222351
作者单位	1.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国; 2.甘肃农业大学林学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	解婷婷,张希明,单立山,等. 灌溉量对多枝柽柳水分生理及生长的影响[J]. 中国科学院新疆生态与地理研究所, 甘肃农业大学,2008,25(6):802-807.
APA	解婷婷,张希明,单立山,梁少民,&杨小林.(2008).灌溉量对多枝柽柳水分生理及生长的影响.,25(6),802-807.
MLA	解婷婷,et al."灌溉量对多枝柽柳水分生理及生长的影响".25.6(2008):802-807.