Arid
DOI10.1016/j.sjbs.2015.04.012
Effects of open grazing and livestock exclusion on floristic composition and diversity in natural ecosystem of Western Saudi Arabia
Al-Rowaily, Saud L.1; El-Bana, Magdy I.2; Al-Bakre, Dhafer A.3; Assaeed, Abdulaziz M.1; Hegazy, Ahmad K.4,5; Ali, Mohammed Basharat1
通讯作者Al-Rowaily, Saud L.
来源期刊SAUDI JOURNAL OF BIOLOGICAL SCIENCES
ISSN1319-562X
出版年2015
卷号22期号:4页码:430-437
英文摘要

Livestock grazing is one of the main causes of rangeland degradation in Saudi Arabia. Fencing to exclude grazers is one of the main management practices used to restore vegetation and conserve biodiversity. The main objectives of this study were to investigate the changes in plant diversity and abundance, floristic composition and plant groups of the major life forms in response to thirty-five years of grazing exclosure in western Saudi Arabia. These vegetation attributes and palatability were compared in 30 sampling stands located in the excluded and grazed sites. Our results showed that livestock exclusion significantly increased covers, density and species richness of annuals, grasses, perennial forbs, shrubs and trees. Exclosure enhanced the abundance and richness of palatable species and depressed the development of weedy species. About 66.7% of the recorded species at the excluded site were highly palatable compared to 34.5% at the grazed site. In contrary, about 55.2% unpalatable species were found in the grazed site compared to 25.8% in the protected site. Jaccard’s similarity index between the excluded and grazed sites showed lower values of 0.39%, 0.40% and 0.31% at levels of families, genus and species, respectively. The results suggest that establishing livestock exclusion may be a useful sustainable management tool for vegetation restoration and conservation of plant diversity in degraded rangelands of arid regions. (C) 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University.


英文关键词Protection Fencing Grazing impacts Rangeland Steppes Restoration
类型Article
语种英语
国家Saudi Arabia ; Egypt
收录类别SCI-E
WOS记录号WOS:000355922900010
WOS关键词ACACIA-TORTILIS ; PHYTOGENIC MOUNDS ; RADDIANA SAVI ; RANGE PLANTS ; VEGETATION ; SOIL ; DEGRADATION ; DESERTIFICATION ; COMMUNITIES ; DEFOLIATION
WOS类目Biology
WOS研究方向Life Sciences & Biomedicine - Other Topics
来源机构King Saud University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/190329
作者单位1.King Saud Univ, Dept Plant Prod, Riyadh 11451, Saudi Arabia;
2.Port Said Univ, Fac Sci, Dept Bot, Port Said, Egypt;
3.Univ Tabuk, Coll Sci, Dept Biol, Tabuk, Saudi Arabia;
4.Cairo Univ, Fac Sci, Dept Bot & Microbiol, Giza 12613, Egypt;
5.King Saud Univ, Coll Sci, Dept Bot & Microbiol, Riyadh 11451, Saudi Arabia
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Al-Rowaily, Saud L.,El-Bana, Magdy I.,Al-Bakre, Dhafer A.,et al. Effects of open grazing and livestock exclusion on floristic composition and diversity in natural ecosystem of Western Saudi Arabia[J]. King Saud University,2015,22(4):430-437.
APA Al-Rowaily, Saud L.,El-Bana, Magdy I.,Al-Bakre, Dhafer A.,Assaeed, Abdulaziz M.,Hegazy, Ahmad K.,&Ali, Mohammed Basharat.(2015).Effects of open grazing and livestock exclusion on floristic composition and diversity in natural ecosystem of Western Saudi Arabia.SAUDI JOURNAL OF BIOLOGICAL SCIENCES,22(4),430-437.
MLA Al-Rowaily, Saud L.,et al."Effects of open grazing and livestock exclusion on floristic composition and diversity in natural ecosystem of Western Saudi Arabia".SAUDI JOURNAL OF BIOLOGICAL SCIENCES 22.4(2015):430-437.
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