干旱区生态环境知识资源中心(Arid): Vegetation zonation along the desert-wetland ecosystem of Taif Highland, Saudi Arabia

Arid

DOI	10.1016/j.sjbs.2021.02.086
	Vegetation zonation along the desert-wetland ecosystem of Taif Highland, Saudi Arabia
	Galal, Tarek M.; Al-Yasi, Hatim M.; Fadl, Mohamed A.
通讯作者	Galal, TM (corresponding author), Taif Univ, Coll Sci, Dept Biol, POB 11099, At Taif 21944, Saudi Arabia. ; Galal, TM (corresponding author), Helwan Univ, Dept Bot & Microbiol, Fac Sci, Cairo, Egypt.
来源期刊	SAUDI JOURNAL OF BIOLOGICAL SCIENCES
ISSN	1319-562X
EISSN	2213-7106
出版年	2021
卷号	28 期号:6 页码:3374-3383
英文摘要	Saudi Arabia has no permanent lakes or rivers but has wet meadows, which are desert wetlands temporarily formed due to the seasonal rainfall. This work investigates the environmental variables' impact on the vegetation pattern in the desert-wetland ecosystem in Taif highlands. Forty-one stands were randomly selected representing three main habitats (wet meadows, slopes, and terraces) to study their floristic features and vegetation analysis. A total of 142 species were recorded belonging to 111 genera and 45 families in the desert wetlands of Taif Province. About 64.1% were natural plants, while 25.4% were segetal weeds, 7.7% were aquatic plants, and 2.8% were plants that escaped from cultivation. Therophytes dominated over the other life forms, and mono-regional taxa were the dominant chorotype. Multivariate analysis of the recorded plants produced eight vegetation groups; four of them (A: Potamogeton nodosus-Nasturtium officinale, B: Lemna gibba-Leptochloa fusca, C: Typha domingensisXanthium strumarium and D: Conyza stricta- Cyperus longus) represented the wet meadows, while two (E: Acacia gerrardii- Commicarpus plumbagineus and H: Osteospermum vaillantii- Eragrostis Pilosa) for slopes and other two (F: Argemone ochroleuca-Cyperus rotundus and G: Pulicaria undulata- Solanum incanum) for the desert terraces. The vegetation zonation was clear, which started from real aquatic species in the wet meadows passing through mixed vegetation in the slopes and ended with proper xerophytic vegetation in the terraces. Conyza stricta- Cyperus longus community had the highest species diversity, while that of Potamogeton nodosus-Nasturtium officinale had the lowest. The principal component analysis indicated that HCO3, NO3, Mg, Cl, Ca, and pH values were the most effective soil variable. The presence of several segetal weeds suggests the alteration of the natural status of the desert-wetland ecosystem, and thus the conservation of these natural habitats becomes urgent. (c) 2021 The Author(s). Published by Elsevier B.V. on behalf of King Saud University. This is an open access
英文关键词	Wet meadows Desert Wetlands Highlands Vegetation Taif
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000655646100027
WOS关键词	FLORISTIC DIVERSITY ; ALTITUDINAL GRADIENT ; CONSERVATION ; REGION ; COMMUNITIES ; DYNAMICS ; PROVINCE ; LAND ; WADI
WOS类目	Biology
WOS研究方向	Life Sciences & Biomedicine - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351618
作者单位	[Galal, Tarek M.; Al-Yasi, Hatim M.; Fadl, Mohamed A.] Taif Univ, Coll Sci, Dept Biol, POB 11099, At Taif 21944, Saudi Arabia; [Galal, Tarek M.] Helwan Univ, Dept Bot & Microbiol, Fac Sci, Cairo, Egypt; [Fadl, Mohamed A.] Beni Suef Univ, Bot & Microbiol Dept, Bani Suwayf, Egypt
推荐引用方式 GB/T 7714	Galal, Tarek M.,Al-Yasi, Hatim M.,Fadl, Mohamed A.. Vegetation zonation along the desert-wetland ecosystem of Taif Highland, Saudi Arabia[J],2021,28(6):3374-3383.
APA	Galal, Tarek M.,Al-Yasi, Hatim M.,&Fadl, Mohamed A..(2021).Vegetation zonation along the desert-wetland ecosystem of Taif Highland, Saudi Arabia.SAUDI JOURNAL OF BIOLOGICAL SCIENCES,28(6),3374-3383.
MLA	Galal, Tarek M.,et al."Vegetation zonation along the desert-wetland ecosystem of Taif Highland, Saudi Arabia".SAUDI JOURNAL OF BIOLOGICAL SCIENCES 28.6(2021):3374-3383.