干旱区生态环境知识资源中心(Arid): Piospheric influence on forage species composition and abundance in semi-arid Karamoja sub-region, Uganda

Arid

DOI	10.1186/s13570-015-0032-y
	Piospheric influence on forage species composition and abundance in semi-arid Karamoja sub-region, Uganda
	Egeru, Anthony; Wasonga, Oliver; MacOpiyo, Laban; Mburu, John; Tabuti, John R. S.; Majaliwa, Mwanjalolo G. J.
通讯作者	Egeru, A
来源期刊	PASTORALISM-RESEARCH POLICY AND PRACTICE
ISSN	2041-7136
出版年	2015
卷号	5 期号:1
英文摘要	Piospheres in semi-arid areas are gradients of animal impacts around watering holes. Few studies have examined the impact dynamics of herbaceous and woody species composition and abundance in relation to piospheres in East Africa. In this study, we identified the trend in piosphere development, assessed piosphere use and change indicators, and identified herbaceous and woody plant structure in relation to piospheres in the Karamoja sub-region, Uganda. Results revealed that piosphere development has been reactionary to drought and/or insecurity events and increased rapidly in the last decade. A diversity of herbaceous and woody plants exists around the piospheres. Use and change indicators revealed high trampling and grazing intensity, high presence of erosion signs and low litter cover. Gradient distance had both positive and negative effects on trampling intensity, percent exposure and plant height, respectively. A negative and positive effect of gradient distance was also observed on different herbaceous and woody forage species leading to the identification of both increaser and decreaser species around the piospheres. Therefore, as concentrated use of the piospheres continues unabated, an outward ripple effect leading to loss and/ or increase of undesirable herbaceous and woody species will be felt. This will have an impact on the composition and abundance dynamics of desirable forage species in the sub-region.
英文关键词	Distance Herbaceous Protected kraals Waterholes Woody
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000216547800012
WOS类目	Environmental Sciences ; Environmental Studies
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/2XILL650/331055
作者单位	[Egeru, Anthony; Tabuti, John R. S.] Makerere Univ, Dept Environm Management, POB 7062, Kampala, Uganda; [Egeru, Anthony] Reg Univ Forum Capac Bldg Agr RUFORUM, Kampala, Uganda; [Wasonga, Oliver; MacOpiyo, Laban] Univ Nairobi, Dept Land Resource Management & Agr Technol, Nairobi, Kenya; [Mburu, John] Univ Nairobi, Dept Agr Econ, Nairobi, Kenya; [Majaliwa, Mwanjalolo G. J.] Makerere Univ, Dept Geog Geo Informat & Climat Sci, Kampala, Uganda
推荐引用方式 GB/T 7714	Egeru, Anthony,Wasonga, Oliver,MacOpiyo, Laban,et al. Piospheric influence on forage species composition and abundance in semi-arid Karamoja sub-region, Uganda[J],2015,5(1).
APA	Egeru, Anthony,Wasonga, Oliver,MacOpiyo, Laban,Mburu, John,Tabuti, John R. S.,&Majaliwa, Mwanjalolo G. J..(2015).Piospheric influence on forage species composition and abundance in semi-arid Karamoja sub-region, Uganda.PASTORALISM-RESEARCH POLICY AND PRACTICE,5(1).
MLA	Egeru, Anthony,et al."Piospheric influence on forage species composition and abundance in semi-arid Karamoja sub-region, Uganda".PASTORALISM-RESEARCH POLICY AND PRACTICE 5.1(2015).