干旱区生态环境知识资源中心(Arid): Long-term effects of climatic and hydrological variation on natural vegetation production and characteristics in a semiarid watershed: The northern Negev, Israel

Arid

DOI	10.1016/j.scitotenv.2020.141146
	Long-term effects of climatic and hydrological variation on natural vegetation production and characteristics in a semiarid watershed: The northern Negev, Israel
	Argaman, Eli; Barth, Rafael; Moshe, Yitzhak; Ben-Hur, Meni
通讯作者	Argaman, E
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2020
卷号	747
英文摘要	Climate models for semiarid and arid regions predict increasing average temperatures and reduced amounts of total annual rainfall. This warming and drying trend could have critical, adverse effects on natural vegetation activity and survival in arid and semiarid zones. We investigated the long-term effects of climate change and surface-runoff variations on the production of natural vegetation in a dry, undisturbed, first-order watershed in the northern Negev, Israel. Vegetation dynamics were estimated by normalized difference vegetation index. Yearly annual vegetation cover varied greatly during themonitoring period (2000-2013), but a significant positive regressionwas foundwith annual rainfall and runoff amounts, suggesting a strong relationship between annual vegetation dynamics and rainfall amount in a given year. A significant positive linear regression was found between annual ET0 values and year of measurement (1994-2013), with no corresponding decrease in vegetation condition. Surface runoff in the watershed affected the vegetation's water source. Large variation in annual runoff amounts was observed for 1994-2011, averaging 22.3 and 9 mm for the first (2000-2006) and second (2007-2013) vegetation-monitoring subperiods, respectively. Perennial vegetation was less sensitive to drought years than annual vegetation, likely due to differences in water-source availability. Perennials also benefited from the arrival of nutrients, organic matter, and fertile soil flowing with the surface runoff and eroded soil into their growing area. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Annual and perennial vegetation Climate variation Evapotranspiration NDVI Runoff/rainfall Sayeret Shaked Park Soil Surface runoff
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000579386300081
WOS关键词	ECOSYSTEM ; RAINFALL ; DESERT ; SOIL ; INFILTRATION ; DROUGHT ; DEGRADATION ; SHRUBLANDS ; DYNAMICS ; PATCHES
WOS类目	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/2XILL650/326852
作者单位	[Argaman, Eli] Minist Agr, Dept Soil Conservat & Drainage, Soil Eros Res Stn, Rishon Leziyyon, Israel; [Barth, Rafael] Univ Appl Forest Sci, Rottenburg, Germany; [Moshe, Yitzhak] KKL Southern Reg, Soil Conservat & Forest Unit, Rishon Leziyyon, Israel; [Ben-Hur, Meni] ARO, Inst Soil Water & Environm Sci, Volcani Ctr, Rishon Leziyyon, Israel
推荐引用方式 GB/T 7714	Argaman, Eli,Barth, Rafael,Moshe, Yitzhak,et al. Long-term effects of climatic and hydrological variation on natural vegetation production and characteristics in a semiarid watershed: The northern Negev, Israel[J],2020,747.
APA	Argaman, Eli,Barth, Rafael,Moshe, Yitzhak,&Ben-Hur, Meni.(2020).Long-term effects of climatic and hydrological variation on natural vegetation production and characteristics in a semiarid watershed: The northern Negev, Israel.SCIENCE OF THE TOTAL ENVIRONMENT,747.
MLA	Argaman, Eli,et al."Long-term effects of climatic and hydrological variation on natural vegetation production and characteristics in a semiarid watershed: The northern Negev, Israel".SCIENCE OF THE TOTAL ENVIRONMENT 747(2020).