干旱区生态环境知识资源中心(Arid): Effect of human recreation on vegetation composition and diversity of inland desert dunes in Al-Ghada Nature Reserve, Central Saudi Arabia

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	Effect of human recreation on vegetation composition and diversity of inland desert dunes in Al-Ghada Nature Reserve, Central Saudi Arabia
	El-Bana, Magdy I.; Aldakhil, Mohammed D.
通讯作者	El-Bana, MI
来源期刊	CATRINA-THE INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCES
ISSN	1687-5052
EISSN	2090-2786
出版年	2015
卷号	11 页码:41-50
英文摘要	Inland desert dunes are regarded as the most fragile ecosystem in arid regions. A field study was conducted to evaluate the effect of human recreational camping on vegetation assemblages at four sites belonging to none, low, moderate and heavy recreational intensities on the sand dunes of Al-Ghada Nature Reserve. In each study site, four 10 x 100 m transects were established in the four cardinal directions to measure the different vegetation attributes. The results showed that all recreational levels significantly reduced the total vegetation cover, plant density, number of species, as well as Shannon-Wiener diversity and evenness indices. Heavy recreational intensities decreased the cover of the woody and grass species, and increased that of annual and weedy species. Non-metric Multidimensional Scaling ordination (NMDS) of vegetation presented a clear spatial separation of the four sampling sites reflecting their differences in vegetation association according to the recreational pressure. Indicator species value analysis (INDVAL) showed that the four recreational intensities were characterized by different indicator species with highest constancy and fidelity. The study concluded that recreational pressure significantly alters vegetation structure and diversity, and recreation activities should be restricted to conserve the ecosystem function of desert dunes that are sensitive to disturbance.
英文关键词	Camping inland desert dunes management recreational activities species diversity vegetation
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000424610900007
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/2XILL650/331378
作者单位	[El-Bana, Magdy I.] Port Said Univ, Fac Sci, Dept Bot, Port Said, Egypt; [Aldakhil, Mohammed D.] Imam Mohammed Ibn Saud Islamic Univ, Social Sci Coll, Dept Geog, Riyadh, Saudi Arabia
推荐引用方式 GB/T 7714	El-Bana, Magdy I.,Aldakhil, Mohammed D.. Effect of human recreation on vegetation composition and diversity of inland desert dunes in Al-Ghada Nature Reserve, Central Saudi Arabia[J],2015,11:41-50.
APA	El-Bana, Magdy I.,&Aldakhil, Mohammed D..(2015).Effect of human recreation on vegetation composition and diversity of inland desert dunes in Al-Ghada Nature Reserve, Central Saudi Arabia.CATRINA-THE INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCES,11,41-50.
MLA	El-Bana, Magdy I.,et al."Effect of human recreation on vegetation composition and diversity of inland desert dunes in Al-Ghada Nature Reserve, Central Saudi Arabia".CATRINA-THE INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCES 11(2015):41-50.