干旱区生态环境知识资源中心(Arid): The importance of dew in the water balance of a continental semiarid grassland

Arid

DOI	10.1016/j.jaridenv.2019.05.003
	The importance of dew in the water balance of a continental semiarid grassland
	Aguirre-Gutierrez, Carlos A.1; Holwerda, Friso 2; Goldsmit, Gregory R.3; Delgado, Josue 4,5; Yepez, Enrico 4,5; Carbajal, Noel 1; Escoto-Rodriguez, Martin 6; Tulio Arredond, Jose 1
通讯作者	Tulio Arredond, Jose
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2019
卷号	168 页码:26-35
英文摘要	Dew has been recognized as an important source of water for many coastal arid and semiarid ecosystems because of its contributions to daily, seasonal and annual water balance. We measured the frequency, duration and amount of dewfall from January 2011 to December 2016 to assess its contribution to the local water balance in a continental semiarid grassland where Bouteloua gracilis (Blue grama) is the key grass species. Dew was observed with leaf wetness sensors and amounts were estimated with an energy model using micrometeorological data. Dewfall occurred on 39% of the nights with an average duration of 5 +/- 4 h. Daily average dewfall deposition during the study period was 0.2 mm with the highest accumulation of 0.7 mm. Annual dewfall ranged between 16.5 and 69 mm, therefore representing between 4.9% and 10.2% of annual precipitation. Dewfall contributed between 7.6% and 33.6% of the total dry season precipitation (winter/spring), which considerably reduced the water deficit. Our results highlight the relevance of dewfall as a consistent and important water source in this semiarid grassland ecosystem. It is of particular importance during dry periods, where it may represent the only water source available to the vegetation at this site.
英文关键词	Dewfall Evapotranspiration Grassland Leaf wetness Semiarid Water balance
类型	Article
语种	英语
国家	Mexico ; USA
收录类别	SCI-E
WOS记录号	WOS:000472696100004
WOS关键词	STABILIZED DESERT ECOSYSTEM ; SURFACE FLUXES ; DEPOSITION ; MOISTURE ; SHAPOTOU
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216768
作者单位	1.Inst Potosino Invest Cient & Tecnol, Div Ciencias Ambientales, Camino La Presa San Jose 2055,Lomas 4 Secc, San Luis Potosi 78216, Slp, Mexico; 2.Univ Autonomous Mexico UNAM, Ctr Ciencias Atmosfera, Circuito Exterior S-N,Ciudad Univ, Del Coyoacan 04510, DF, Mexico; 3.Chapman Univ, Schmid Coll Sci & Technol, Orange, CA USA; 4.Inst Tecnol Sonora, Dept Ciencias Agua & Medio Ambiente, 5 Febrero 818 Sur, Obregon, Sonora, Mexico; 5.Programa Mexicano Carbono, Texcoco 56230, Edo De Mexico, Mexico; 6.Univ Autonoma San Luis Potosi, Fac Agron & Vet, San Luis Potosi 78321, Mexico
推荐引用方式 GB/T 7714	Aguirre-Gutierrez, Carlos A.,Holwerda, Friso,Goldsmit, Gregory R.,et al. The importance of dew in the water balance of a continental semiarid grassland[J],2019,168:26-35.
APA	Aguirre-Gutierrez, Carlos A..,Holwerda, Friso.,Goldsmit, Gregory R..,Delgado, Josue.,Yepez, Enrico.,...&Tulio Arredond, Jose.(2019).The importance of dew in the water balance of a continental semiarid grassland.JOURNAL OF ARID ENVIRONMENTS,168,26-35.
MLA	Aguirre-Gutierrez, Carlos A.,et al."The importance of dew in the water balance of a continental semiarid grassland".JOURNAL OF ARID ENVIRONMENTS 168(2019):26-35.