干旱区生态环境知识资源中心(Arid): Foliar uptake of dew in the sandy ecosystem of the Mongolia Plateau: A life-sustaining and carbon accumulation strategy shared differently by C-3 and C-4 grasses

Arid

DOI	10.1016/j.agrformet.2020.107941
	Foliar uptake of dew in the sandy ecosystem of the Mongolia Plateau: A life-sustaining and carbon accumulation strategy shared differently by C-3 and C-4 grasses
	Liu, Meizhen 1,2; Cen, Yu 1,3; Wang, Chengdong 1,3; Gu, Xian 1,3; Bowler, Peter 4; Wu, Dongxiu 1; Zhang, Lin 1; Jiang, Gaoming 1,2; Beysens, Daniel 5,6
通讯作者	Liu, Meizhen
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2020
卷号	287
英文摘要	Dew is an important source of available water in arid or semi-arid areas and considerable attention has focused upon whether foliar dew uptake occurs. Nonetheless, its occurrence and effects on plant growth in the sand-based ecosystems of the Mongolia Plateau are largely unknown. We performed laboratory experiments and conducted a three-year field investigation of dew in the Hunshandak sandland, northern China. Dew yield was determined by a weighing method. The ecological significance of dew was evaluated by measuring isotopes in the field, leaf water content, photosynthesis and the biomass of drought-stressed plants exposed to dew. Nights producing dew comprised 53% of those between June and October when the atmospheric relative humidity was higher than 80% and wind speed was lower than 4.0 m s(-1). Dew yield averaged 0.15 mm night(-1) and its maximum value was 0.30 mm night(-1). When exposed to dew, drought-stressed plants increased leaf relative water content and net photosynthetic rate (P-n) between 5-76% and 5-240% for C-3 plants, and 3-18% and 5-109% for C-4 plants. Dew produced more root and total biomass (15-81% and 24-82%) in C-4 species than in C-3 species (3-28% and 5-25%). Regular dew events on five or more consecutive nights in seven days can sustain C-3 species, while C4 species accumulate more carbon resources. This study found that the high dew yield in arenicolous ecosystems was due to the soil matrix and environmental differences in the neighboring steppe ecosystem. C-4 species and drought resistant C-3 species displayed higher efficiency for dew utilization than the moderately drought resistant C-3 species. This may affect the plant community's dynamic and ecological interactions in response to future climate change.
英文关键词	Dew yield Meteorological factors Foliar uptake Photosynthesis Leaf water content Biomass
类型	Article
语种	英语
国家	Peoples R China ; USA ; France
收录类别	SCI-E
WOS记录号	WOS:000531095900014
WOS关键词	STABILIZED DESERT ECOSYSTEM ; NEGEV DESERT ; STABLE-ISOTOPES ; WATER-UPTAKE ; LEAF WATER ; RATIOS ; YIELD ; ABSORPTION ; MOISTURE ; SHAPOTOU
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
来源机构	中国科学院植物研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319330
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China; 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China; 3.Univ Chinese Acad Sci, Grad Sch Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Univ Calif Irvine, Dept Ecol & Evolutionary Biol, Irvine, CA 92697 USA; 5.PSL Univ, Sorbonne Univ, Sorbonne Paris Cite, Phys & Mecan Milieux Heterogenes,CNRS,ESPCI, Paris, France; 6.OPUR, Paris, France
推荐引用方式 GB/T 7714	Liu, Meizhen,Cen, Yu,Wang, Chengdong,et al. Foliar uptake of dew in the sandy ecosystem of the Mongolia Plateau: A life-sustaining and carbon accumulation strategy shared differently by C-3 and C-4 grasses[J]. 中国科学院植物研究所,2020,287.
APA	Liu, Meizhen.,Cen, Yu.,Wang, Chengdong.,Gu, Xian.,Bowler, Peter.,...&Beysens, Daniel.(2020).Foliar uptake of dew in the sandy ecosystem of the Mongolia Plateau: A life-sustaining and carbon accumulation strategy shared differently by C-3 and C-4 grasses.AGRICULTURAL AND FOREST METEOROLOGY,287.
MLA	Liu, Meizhen,et al."Foliar uptake of dew in the sandy ecosystem of the Mongolia Plateau: A life-sustaining and carbon accumulation strategy shared differently by C-3 and C-4 grasses".AGRICULTURAL AND FOREST METEOROLOGY 287(2020).