干旱区生态环境知识资源中心(Arid): How Populus euphratica utilizes dew in an extremely arid region

Arid

DOI	10.1007/s11104-019-04244-1
	How Populus euphratica utilizes dew in an extremely arid region
	Zhang, Ying 1,2; Hao, Xingming 1; Sun, Haitao 1,2; Hua, Ding 1,2; Qin, Jingxiu 1,2
通讯作者	Hao, Xingming
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2019
卷号	443 期号:1-2 页码:493-508
英文摘要	Aims Dew is an important water source of plants in semi-arid and arid regions. However, there is not much evidence that this process is ecologically relevant for plants, especially in extremely desert riparian forest areas. We want to answer three key questions: 1) what are the positive effects of dew on plant growth? 2) Can the leaves absorb and use dew directly? 3) If the leaves can absorb dew, how is the absorbed water allocated? Methods We designed a two-factor control and stable isotope experiment to reveal the physiological and ecological responses of Populus euphratica seedlings to three different amounts of dew under different soil water contents. Results The leaf biomass, height growth, and the surface area of roots differed significantly between different amounts of dew under different levels of drought stress. Under different levels of drought stress, the Delta deuterium (delta D) value of plant, and soil water of seedlings in the dew treatment was significantly higher than that in the untreated group. Populus euphratica seedlings can absorb dew by direct foliar uptake and can redistribute the dew among plant organs and even the soil. Conclusions Dew treatments significantly promoted the growth and development and the fluorescence parameters (CYRILLIC CAPITAL LETTER EFPSII, ETR) of leaves of seedlings, especially under the soil moisture sufficient condition and under moderate drought. Obviously, the absorption and distribution of dew on leaves of Populus euphratica improved the soil moisture condition in the growing season and are important survival strategies for Populus euphratica to adjust to short-term drought.
英文关键词	Dew Populus euphratica seedlings Physiological and ecological responses Stable isotope tracing
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000493661800032
WOS关键词	FOLIAR WATER-UPTAKE ; STABLE-ISOTOPES ; ENERGY-BALANCE ; METEOROLOGICAL FACTORS ; ECOLOGICAL FACTOR ; LOWER REACHES ; NEGEV DESERT ; TARIM RIVER ; ABSORPTION ; DEPOSITION
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
EI主题词	2019-10-01
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310201
作者单位	1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ying,Hao, Xingming,Sun, Haitao,et al. How Populus euphratica utilizes dew in an extremely arid region[J]. 中国科学院新疆生态与地理研究所,2019,443(1-2):493-508.
APA	Zhang, Ying,Hao, Xingming,Sun, Haitao,Hua, Ding,&Qin, Jingxiu.(2019).How Populus euphratica utilizes dew in an extremely arid region.PLANT AND SOIL,443(1-2),493-508.
MLA	Zhang, Ying,et al."How Populus euphratica utilizes dew in an extremely arid region".PLANT AND SOIL 443.1-2(2019):493-508.