干旱区生态环境知识资源中心(Arid): 科尔沁沙地几种常见植物茎叶吸水特征

Arid

	科尔沁沙地几种常见植物茎叶吸水特征
其他题名	Characteristics on Direct Foliar Rainwater Absorption of Several Common Plants in Horqin Sandy Land
	车力木格 1; 刘新平 2; 何玉惠 3; 王明明 1; 魏水莲 4; 李玉霖 2; 孙姗姗 1
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2018
卷号	38 期号:5 页码:1017-1023
中文摘要	植物通过茎叶吸水能够极大地改善自身水分条件。为研究科尔沁沙地植被茎叶吸收水分变化特征,于2017年7-8月选取科尔沁沙地常见植物差不嘎蒿(Artemisia halodendron) 、小叶锦鸡儿(Caragana microphylla) 、猪毛菜(Salsola collina),通过自然降雨、茎叶隔雨、根部隔雨的控制试验,运用压力室法测定了降雨前后的植物水势(Psi)变化。结果表明: (1)根部隔雨试验中,差不嘎蒿、小叶锦鸡儿和猪毛菜降雨后的水势值与降雨前相比分别升高了约66.7%、59.5%和87.9%,在降雨后第2天的水势值与降雨前相比分别升高了约73.2%、86.7%和90.6%。(2)差不嘎蒿和猪毛菜在不同部位隔雨试验中的茎叶水势值差异不明显(P>0.05),小叶锦鸡儿茎叶水势值存在显著差异(P<0.05) 。(3)差不嘎蒿、小叶锦鸡儿和猪毛菜都存在茎叶吸水现象。小叶锦鸡儿比差不嘎蒿和猪毛菜更能够适应科尔沁沙地的生存环境。
英文摘要	Foliar absorption of rainfall water can greatly improve water condition and meet water needs for plants in arid and semi-arid areas, and the characteristics analysis of direct foliar rainwater absorption have an important significance for the adaptive strategies research of plant water physiology ecology. To research the foliar absorption characteristics of rainfall water in Horqin Sandy Land, three common plants (Artemisia halodendron, Caragana microphylla and Salsola collina) were selected to study the characteristics of foliar absorption by the control experiments of natural rainfall, foliar water-exclusion and root water-exclusion, and the dynamics of plant water potential before and after rainfall were measured by the pressure chamber method. The results showed that: (1) compared with before rainfall, the plant water potential of A. halodendron, C. microphylla and S. collina approximately increased 66.7%, 59.5% and 87.9% after the rain, respectively, and the plant water potential in second day increased 73.2%, 86.7% and 90.6%, respectively. (2) No significant difference of water potential in stem and leaves of A. halodendron and S. collina were detected between the rainwater-exclusion experiments of different position, but water potential in stem and leaves of C. microphylla had significant difference. (3) Our results suggested that the common plants of A. halodendron, C. microphylla and S. collina in Horqin Sandy Land all have the function of direct foliar rainwater adsorption, and that C. microphylla is more able to adapt the survival environment in Horqin Sandy Land compared with A. halodendron and S. collina.
中文关键词	叶片吸水 ; 茎叶水势 ; 科尔沁沙地
英文关键词	leaf water absorption plant water potential Horqin Sandy Land
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6343695
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238790
作者单位	1.中国科学院西北生态资源环境研究院;;中国科学院大学, 中国科学院奈曼沙漠化研究站;;, 兰州;;, 甘肃;;北京 730000;;100049, 中国; 2.中国科学院西北生态资源环境研究院;;中国科学院西北生态资源环境研究院;;中国科学院西北生态资源环境研究院, 中国科学院奈曼沙漠化研究站;;中国科学院乌拉特荒漠草原研究站;;中国科学院皋兰生态与农业综合研究站, 兰州;;兰州;;兰州, 甘肃;;甘肃;;甘肃 730000;;730000;;730000, 中国; 3.中国科学院西北生态资源环境研究院, 中国科学院皋兰生态与农业综合研究站, 兰州, 甘肃 730000, 中国; 4.北京中天润成环保科技有限公司, 北京 100000, 中国
推荐引用方式 GB/T 7714	车力木格,刘新平,何玉惠,等. 科尔沁沙地几种常见植物茎叶吸水特征[J],2018,38(5):1017-1023.
APA	车力木格.,刘新平.,何玉惠.,王明明.,魏水莲.,...&孙姗姗.(2018).科尔沁沙地几种常见植物茎叶吸水特征.中国沙漠,38(5),1017-1023.
MLA	车力木格,et al."科尔沁沙地几种常见植物茎叶吸水特征".中国沙漠 38.5(2018):1017-1023.