干旱区生态环境知识资源中心(Arid): Do Bush Control Techniques Have an Effect on the Density, Cover and Recruitment of Woody Plants in a Semi-Arid Savanna? The Case of a Semi-Arid Savanna, Southern Ethiopia

Arid

DOI	10.3389/fenvs.2021.777146
	Do Bush Control Techniques Have an Effect on the Density, Cover and Recruitment of Woody Plants in a Semi-Arid Savanna? The Case of a Semi-Arid Savanna, Southern Ethiopia
	Hare, Malicha L.; Wang, Yong D.; Xu, Xin W.; Yuan, You; Na, Zhou; Gedda, Abule E.
通讯作者	Hare, ML ; Wang, YD (corresponding author)，Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi, Peoples R China. ; Hare, ML (corresponding author)，Univ Chinese Acad Sci, Beijing, Peoples R China. ; Hare, ML ; Wang, YD (corresponding author)，Chinese Acad Sci, Inst Ecol & Geog, Natl Engn Technol Res Ctr Desert Oasis Ecol Const, Urumqi, Peoples R China. ; Hare, ML (corresponding author)，Pastoral Area Dev Commiss Oromia Reg State, Fed Democrat Republ Ethiopia, Finfine, Ethiopia.
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2021
卷号	9
英文摘要	High bush density and cover have negative effects on the environment in general and on livestock production, in particular in savanna rangelands. The study examined the effects of bush control techniques on woody sapling recruitment in the low land savanna region. The study consisted of 21 plots located next to each other on an area of 5.3 ha encroached by Acacia mellifera and Acacia reficiens trees. Seven bush control treatments were assigned randomly to the plots and replicated three times. In the bush clearing plot, woody species were removed at ground level using a handsaw. In the tree thinning; thinning and grazing; thinning and browsing; thinning and fire, and thinning with fire-browsing treatments, trees were thinned to the equivalents of 60% of the density of that of the control plot. Positive changes in sapling densities were observed in the clearing, thinning, and thinning and grazing treatments. In contrast, the control, thinning and browsing, and thinning and fire treatments presented negative changes in densities. A change in sapling density was highest in the cleared plot, whereas it was lowest in the thinning, fire, and browsing treatment. The correlation between changes in sapling densities and new recruitments was highly (p < 0.001) significant in the clearing, thinning, and thinning and grazing treatments thus increased sapling recruitment with the proportion greater for the clearing treatment. The significant correlation induced average sapling recruitment in the control, and low in the thinning with browsing and thinning with fire treatments. The relationship was insignificant in the thinning, fire, and browsing combination treatment and resulted in the lowest rate of saplings' recruitment. Postthinning techniques reduced woody tree recruitment and would sustain open savanna under the continuous management plan.
英文关键词	bush control method woody plants density cover recruitment
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000737805900001
WOS关键词	CATTLE POPULATION-DYNAMICS ; GRASS COMPETITION ; LONG-TERM ; AFRICAN SAVANNAS ; VEGETATION STRUCTURE ; RANGE CONDITION ; TREE DIVERSITY ; FIRE SEASON ; ENCROACHMENT ; ACACIA
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/2XILL650/375677
作者单位	[Hare, Malicha L.; Wang, Yong D.; Xu, Xin W.; Yuan, You; Na, Zhou] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi, Peoples R China; [Hare, Malicha L.] Univ Chinese Acad Sci, Beijing, Peoples R China; [Hare, Malicha L.; Wang, Yong D.; Xu, Xin W.; Yuan, You; Na, Zhou] Chinese Acad Sci, Inst Ecol & Geog, Natl Engn Technol Res Ctr Desert Oasis Ecol Const, Urumqi, Peoples R China; [Hare, Malicha L.] Pastoral Area Dev Commiss Oromia Reg State, Fed Democrat Republ Ethiopia, Finfine, Ethiopia; [Gedda, Abule E.] Wageningen Univ & Res SNV Ethiopia, Res & Innovat Dept, Finfine, Ethiopia
推荐引用方式 GB/T 7714	Hare, Malicha L.,Wang, Yong D.,Xu, Xin W.,et al. Do Bush Control Techniques Have an Effect on the Density, Cover and Recruitment of Woody Plants in a Semi-Arid Savanna? The Case of a Semi-Arid Savanna, Southern Ethiopia[J],2021,9.
APA	Hare, Malicha L.,Wang, Yong D.,Xu, Xin W.,Yuan, You,Na, Zhou,&Gedda, Abule E..(2021).Do Bush Control Techniques Have an Effect on the Density, Cover and Recruitment of Woody Plants in a Semi-Arid Savanna? The Case of a Semi-Arid Savanna, Southern Ethiopia.FRONTIERS IN ENVIRONMENTAL SCIENCE,9.
MLA	Hare, Malicha L.,et al."Do Bush Control Techniques Have an Effect on the Density, Cover and Recruitment of Woody Plants in a Semi-Arid Savanna? The Case of a Semi-Arid Savanna, Southern Ethiopia".FRONTIERS IN ENVIRONMENTAL SCIENCE 9(2021).