干旱区生态环境知识资源中心(Arid): Seasonal Variations in Soil and Bacteriological Properties as Affected by Phytogenic Mounds (Nebkhas) of Halocnemum strobilaceum in Lake Manzala, Egypt

Arid

DOI	10.21608/ejbo.2017.811.1051
	Seasonal Variations in Soil and Bacteriological Properties as Affected by Phytogenic Mounds (Nebkhas) of Halocnemum strobilaceum in Lake Manzala, Egypt
	Issa, Heba K.; El-Bana, Magdy I.; Bahgat, Magdy M.; Abou Dobara, Mohamed I.
通讯作者	El-Bana, MI
来源期刊	EGYPTIAN JOURNAL OF BOTANY
ISSN	0375-9237
出版年	2017
卷号	57 页码:133-145
英文摘要	PHYTOGENIC mounds (nebkhas) formed by halophytes are widely distributed in coastal and desert environments. Such nebkhas provide loci for geochemical and biological activities that influence ecosystem processes and function. Seasonal variation in soil and bacterial properties were investigated within the nebkhas under the canopy of Halocnemum strobilaceum and in the surrounding unvegetated sites at salt marshes of Lake Manzala. The parameters measured include soil moisture, organic matter, total nitrogen and phosphorus, pH, electrical conductivity (EC), and bacterial community and enzyme characteristics. Enrichment ratios for soil salinity and nutrients were evaluated to indicate the salinity and fertility islands within nebkhas. Soil moisture content showed significant differences between the different seasons with the highest value in winter (16.55%) at unvegetated control site. Soil electrical conductivity, total nitrogen and phosphorus had their significantly higher values in nebkhas during autumn. The enrichment values for the measured soil parameters ranged from 0.31 to 4.09 in the four seasons which indicates a clear accumulation effect for soil nutrients and salts within the nebkhas under the canopy of H. strobilaceum. Bacterial abundance was consistently higher in nebkhas through all seasons. Eleven genera of bacteria belong to Firmicutes, Actinobacteria and proteobacteria phyla were recorded in nebkha and unvegetated sites. These genera varied in their occurrence between the two locations and the four seasons. It can be concluded that the formation of nebkhas by halophytic vegetation have noticeable effects on accumulation of soil salinity and fertility during different seasons that affect bacterial abundance and activity in coastal environment.
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000449413500011
WOS关键词	MICROBIAL BIOMASS RESPONSE ; COMMUNITY STRUCTURE ; ENZYME-ACTIVITIES ; SALINITY ; LITTER ; GROWTH ; DECOMPOSITION ; VEGETATION ; MOISTURE ; DYNAMICS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332618
作者单位	[Issa, Heba K.; El-Bana, Magdy I.; Bahgat, Magdy M.] Port Said Univ, Dept Bot, Fac Sci, Port Said, Egypt; [Bahgat, Magdy M.] Jazan Univ, Coll Pharm, Jizan, Saudi Arabia; [Abou Dobara, Mohamed I.] Damietta Univ, Fac Sci, Dept Bot & Microbiol, Dumyat, Egypt
推荐引用方式 GB/T 7714	Issa, Heba K.,El-Bana, Magdy I.,Bahgat, Magdy M.,et al. Seasonal Variations in Soil and Bacteriological Properties as Affected by Phytogenic Mounds (Nebkhas) of Halocnemum strobilaceum in Lake Manzala, Egypt[J],2017,57:133-145.
APA	Issa, Heba K.,El-Bana, Magdy I.,Bahgat, Magdy M.,&Abou Dobara, Mohamed I..(2017).Seasonal Variations in Soil and Bacteriological Properties as Affected by Phytogenic Mounds (Nebkhas) of Halocnemum strobilaceum in Lake Manzala, Egypt.EGYPTIAN JOURNAL OF BOTANY,57,133-145.
MLA	Issa, Heba K.,et al."Seasonal Variations in Soil and Bacteriological Properties as Affected by Phytogenic Mounds (Nebkhas) of Halocnemum strobilaceum in Lake Manzala, Egypt".EGYPTIAN JOURNAL OF BOTANY 57(2017):133-145.