干旱区生态环境知识资源中心(Arid): Variations in soil properties and native woody plant species abundance underProsopis juliflorainvasion in Afar grazing lands, Ethiopia

Arid

DOI	10.1186/s13717-020-00240-x
	Variations in soil properties and native woody plant species abundance underProsopis juliflorainvasion in Afar grazing lands, Ethiopia
	Eshete, Abeje; Treydte, Anna C.; Hailemariam, Mengsteab; Solomon, Negasi; Dejene, Tatek; Yilma, Zewdu; Birhane, Emiru
通讯作者	Eshete, A
来源期刊	ECOLOGICAL PROCESSES
EISSN	2192-1709
出版年	2020
卷号	9 期号:1
英文摘要	Introduction Pastoralism and agro-pastoralism are the major modes of life in arid and semi-arid rangelands. However, rangeland quality and quantity are rapidly deteriorating due to a number of natural and human-induced factors, one of which is bush encroachment. Little is known on how bush encroachment affects the ecosystem functions and services expressed in terms of the native vegetation composition and structure, status of the soil seed bank, soil chemical and physical properties, and the abundance of mycorrhiza spores. Methods We assessed woody species in 64 plots distributed across four levels ofProsopis juliflorainvasion (high, medium, low, and none) at two sites, Amibara and Gewane, in the Afar Region, Ethiopia. We collected composite soil samples to investigate the soil seed bank, mycorrhizal associations, and spore abundance. Results Plant biodiversity was generally low, with eight and four woody species in Gewane and Amibara, respectively.Prosopis juliflorawas dominant in highly, moderately, and lowly invaded areas while Acacia senegal dominated the non-invaded areas. The average number ofP. julifloraindividuals ranged from 3/ha at non-invaded areas in Gewane to 4200/ha at highly invaded areas in Amibara while the total individual number of native woody species ranged from 0 to 88/ha at highly and lowly invaded areas, respectively. The population structure of trees/shrubs in all invasion areas showed an inverted J-shaped distribution, characterized by a high abundance of small individuals.Prosopis juliflorainvasion was associated with high soil OC, Na, Ca, P, bulk density, and moisture content. Herbaceous seed numbers and species richness were highest in the moderately and highly invaded areas. All sampled tree species were associated with mycorrhiza but the percentage of root length colonization by different arbuscular mycorrhizal fungus structures varied significantly (p< 0.05) across invasion categories and sites. Conclusions Our results revealed that althoughP. juliflorainvasion negatively impacted the availability of native woody livestock forage species, it had a positive effect on most soil physical and chemical properties. Such variable effects call out for sustainable management practices when invaded areas are restored.
英文关键词	Encroachment Structural and species diversity Shrubs Arbuscular mycorrhiza Rangelands
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000548773500001
WOS关键词	DRY AFROMONTANE FORESTS ; PROSOPIS-JULIFLORA ; SHRUB ENCROACHMENT ; MYCORRHIZAL FUNGI ; MIDDLE AWASH ; SEED BANKS ; RIFT-VALLEY ; IMPACTS ; GROWTH ; TREES
WOS类目	Ecology ; 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/2XILL650/325047
作者单位	[Eshete, Abeje; Dejene, Tatek; Yilma, Zewdu] Ethiopian Environm & Forestry Res Inst EEFRI, Cent Ethiopia Environm & Forestry Res Ctr CEEFRC, POB 30708, Addis Ababa, Ethiopia; [Treydte, Anna C.] Univ Hohenheim, Agroecol Trop & Subtrop, Stuttgart, Germany; [Treydte, Anna C.] Nelson Mandela African Inst Sci & Technol, Biodivers Conservat & Ecosyst Management, Arusha, Tanzania; [Treydte, Anna C.] Nelson Mandela African Inst Sci & Technol, Sch Life Sci & Bioengn, Arusha, Tanzania; [Hailemariam, Mengsteab; Solomon, Negasi; Birhane, Emiru] Mekelle Univ, Dept Land Resources Management & Environm Protect, POB 231, Mekelle, Ethiopia
推荐引用方式 GB/T 7714	Eshete, Abeje,Treydte, Anna C.,Hailemariam, Mengsteab,et al. Variations in soil properties and native woody plant species abundance underProsopis juliflorainvasion in Afar grazing lands, Ethiopia[J],2020,9(1).
APA	Eshete, Abeje.,Treydte, Anna C..,Hailemariam, Mengsteab.,Solomon, Negasi.,Dejene, Tatek.,...&Birhane, Emiru.(2020).Variations in soil properties and native woody plant species abundance underProsopis juliflorainvasion in Afar grazing lands, Ethiopia.ECOLOGICAL PROCESSES,9(1).
MLA	Eshete, Abeje,et al."Variations in soil properties and native woody plant species abundance underProsopis juliflorainvasion in Afar grazing lands, Ethiopia".ECOLOGICAL PROCESSES 9.1(2020).