干旱区生态环境知识资源中心(Arid): Effect of exclosure ages on woody plant structure,diversity and regeneration potential in the western Tigray region of Ethiopia

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	Effect of exclosure ages on woody plant structure,diversity and regeneration potential in the western Tigray region of Ethiopia
	Gebregerges Tsegay; Tessema Zewdu K; Birhane Emiru
来源期刊	Journal of Forestry Research
ISSN	1007-662X
出版年	2018
卷号	29 期号:3 页码:697-707
英文摘要	Exclosure is a method of rehabilitating degraded lands by protecting them from the interference of animals and from human encroachment,and is used to regenerate native vegetation as a way to reduce soil erosion,increase rain water infiltration and provide fodder and woody biomass in degraded grazing lands.Therefore,we studied woody plant structure,diversity and regeneration potentials in 5-and 10-year grazing exclosures in comparison with open grazed sites in a semi-arid environment.Data on species diversity,abundance,structure,basal area,frequency,density,and regeneration status were collected from 270 sample plots.Forty-one woody species representing 20 families were identified,with 18,28 and 38 species found in open grazed areas,and in 5-and 10-year grazing exclosures,respectively.The 10-year grazing exclosures had a higher (P\0.05) species richness and plant densities compared to the 5-year grazing exclosures and the open grazed areas.The population structure and regeneration status of woody species in both grazing exclosures showed an inverted J-shape,indicating a healthy regeneration status,whereas hampered regeneration was observed in open grazed areas.The establishment of grazing exclosures had positive effects in restoring woody plant diversity and improving vegetation structure and regeneration potentials of degraded grazing lands.
英文关键词	Basal area Diversity Important value index Population structure Regeneration status Species composition Exclosures
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6224298
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335941
作者单位	Gebregerges Tsegay, Shire-Maytsebri Agricultural Research Center, Shire, Ethiopia.; Tessema Zewdu K, Rangeland Ecology and Biodiversity Program,School of Animal and Range Sciences,College of Agriculture and Environmental Sciences,Haramaya University, Dire Dawa, Ethiopia.; Birhane Emiru, Department of Land Resources Management and Environmental Protection,College of Dryland Agriculture and Natural Resources,Mekelle University;;Department of Ecology and Natural Resource Management,Norwegian University of Life Sciences, ;;, Mekelle;;Norway, Ethiopia;; 390;;1432.
推荐引用方式 GB/T 7714	Gebregerges Tsegay,Tessema Zewdu K,Birhane Emiru. Effect of exclosure ages on woody plant structure,diversity and regeneration potential in the western Tigray region of Ethiopia[J],2018,29(3):697-707.
APA	Gebregerges Tsegay,Tessema Zewdu K,&Birhane Emiru.(2018).Effect of exclosure ages on woody plant structure,diversity and regeneration potential in the western Tigray region of Ethiopia.Journal of Forestry Research,29(3),697-707.
MLA	Gebregerges Tsegay,et al."Effect of exclosure ages on woody plant structure,diversity and regeneration potential in the western Tigray region of Ethiopia".Journal of Forestry Research 29.3(2018):697-707.