干旱区生态环境知识资源中心(Arid): Assessing the likelihood of the soil surface to condense vapour: The Negev experience

Arid

DOI	10.1002/eco.2200
	Assessing the likelihood of the soil surface to condense vapour: The Negev experience
	Kidron, Giora J.1 ; Kronenfeld, Rafael 2
通讯作者	Kidron, Giora J.
来源期刊	ECOHYDROLOGY
ISSN	1936-0584
EISSN	1936-0592
出版年	2020
卷号	13 期号:3
英文摘要	The likelihood of dew to provide water to cyanobacteria (CB) and crustose lichens (CL) on soil is a matter of great controversy. Although vapour condensation takes place on cobbles of the Negev Highlands, facilitating lush cover of CL, controversy exists regarding the possible contribution of dew to CB and CL inhabiting the loessial soil of the Negev Highlands. To evaluate this matter, temperature, and measurements of the nonrainfall water (NRW) were conducted during the dewy season (August-November 2019). They included periodical NRW measurements using cloths attached to the (a) soil surface, (b) on top of 10 x 10 x 5- to 6-cm cobbles, and (c) on 10 x 10 x 0.2-cm glass plates (the cloth-plate method, CPM). Additionally, temperature measurements took place at the soil and the cobble surfaces and in the air at 10-cm height above ground. Air temperature and the relative humidity measured by an adjacent meteorological station facilitated the calculation of the dew-point temperature (Td). Taking the CPM as reference, 24 mornings with NRW >= 0.03 mm (the threshold of lichen metabolism) were recorded. Vapour condensation, that is, NRW >= 0.1 mm were recorded during 16 mornings on the cobbles (with a maximum of 0.21 mm) but never on the soil, where maximum NRW reached only 0.023 mm. Surface temperature never reached Td. We therefore conclude that unlike lithic lichens that inhabit bedrocks and cobbles in the Negev Highlands, dew cannot be regarded as a meaningful direct source of water for CB or CL biocrusts on soil.
英文关键词	crustose lichens cyanobacteria dew lithobionts nonrainfall water (NRW)
类型	Article
语种	英语
国家	Israel
收录类别	SCI-E
WOS记录号	WOS:000515299800001
WOS关键词	RAINFALL WATER INPUT ; DEW FORMATION ; TORTULA-RURALIS ; DEPENDENT DEW ; DESERT ; LICHENS ; TEMPERATURE ; PHOTOSYNTHESIS ; CYANOBACTERIA ; ECOSYSTEM
WOS类目	Ecology ; Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
来源机构	Hebrew University of Jerusalem
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314334
作者单位	1.Hebrew Univ Jerusalem, Inst Earth Sci, Givat Ram Campus, IL-91904 Jerusalem, Israel; 2.Israel Meteorol Serv, Meteorol Unit, Kibbutz Sede Boqer, Israel
推荐引用方式 GB/T 7714	Kidron, Giora J.,Kronenfeld, Rafael. Assessing the likelihood of the soil surface to condense vapour: The Negev experience[J]. Hebrew University of Jerusalem,2020,13(3).
APA	Kidron, Giora J.,&Kronenfeld, Rafael.(2020).Assessing the likelihood of the soil surface to condense vapour: The Negev experience.ECOHYDROLOGY,13(3).
MLA	Kidron, Giora J.,et al."Assessing the likelihood of the soil surface to condense vapour: The Negev experience".ECOHYDROLOGY 13.3(2020).