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

doi:10.1016/j.agrformet.2020.107941

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	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 6; Cen, Yu 1; Wang, Chengdong 1; Gu, Xian 1; Bowler, Peter 5; Wu, Dongxiu ; Zhang, Lin ; Jiang, Gaoming 6; Beysens, Daniel 2,4
刊名	AGRICULTURAL AND FOREST METEOROLOGY
	2020
卷号	287
关键词	Dew yield Meteorological factors Foliar uptake Photosynthesis Leaf water content Biomass
ISSN号	0168-1923
DOI	10.1016/j.agrformet.2020.107941
文献子类	Article
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.
学科主题	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
电子版国际标准刊号	1873-2240
出版地	AMSTERDAM
WOS关键词	STABILIZED DESERT ECOSYSTEM ; NEGEV DESERT ; STABLE-ISOTOPES ; WATER-UPTAKE ; LEAF WATER ; RATIOS ; YIELD ; ABSORPTION ; MOISTURE ; SHAPOTOU
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000531095900014
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41371056]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/21767]
专题	植被与环境变化国家重点实验室
作者单位	1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Univ Calif Irvine, Dept Ecol & Evolutionary Biol, Irvine, CA 92697 USA 3.OPUR, Paris, France 4.PSL Univ, Sorbonne Univ, Sorbonne Paris Cite, Phys & Mecan Milieux Heterogenes,CNRS,ESPCI, Paris, France 5.Univ Chinese Acad Sci, Grad Sch Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
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]. AGRICULTURAL AND FOREST METEOROLOGY,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).