干旱区生态环境知识资源中心(Arid): Impact of agrarian practices and some pastoral uses on vegetation in Algerian steppe rangelands

Arid

DOI	10.1071/RJ18081
	Impact of agrarian practices and some pastoral uses on vegetation in Algerian steppe rangelands
	Hammouda, R. F.1; Huguenin, J.2,3; Julien, L.2,3; Nedjraoui, D.1
通讯作者	Huguenin, J.
来源期刊	RANGELAND JOURNAL
ISSN	1036-9872
EISSN	1834-7541
出版年	2019
卷号	41 期号:2 页码:97-107
英文摘要	The decline in steppe vegetation in Algeria was first reported in the mid-20th century, and for many years was attributed to recurrent droughts. Hypotheses suggesting that this decline was a consequence of human activities emerged in the 1970s - a time of major socioeconomic trends in the region. Changes such as strong population growth, sedentarisation, herd size increases and use of pasture land for crops, all had considerable impact on rangeland vegetation. The aim of the present work was to identify heterogeneity in the pasture vegetation of a given territory' (in the sense of a terroir'), or biophysical environment (including meteorological), taking into account rangeland distribution, land use changes and herd management in the Aflou region of Algeria. Characterisation and mapping of the vegetation and its environment in the study area led to the hypothesis that, apart from some very slight soil differences, heterogeneity in rangeland vegetation appeared mainly related to human impacts. Bertin's Semiology of Graphics was used to analyse the results, and indicated a major decline in vegetation productivity and biodiversity in the steppe rangelands of the study zone. Beyond this general trend in the municipal territory studied, areas were found with contrasting flora communities, with some showing relatively stable plant communities, while other areas had some plant communities that had undergone regressive succession. Grazing conditions and the proximity of ploughed land were responsible for these different vegetation situations.
英文关键词	drylands grazing pressure herd management land access pastoral map regressive succession vegetation dynamics vegetation map
类型	Article
语种	英语
国家	Algeria ; France
收录类别	SCI-E
WOS记录号	WOS:000467968200001
WOS关键词	CLIMATE-CHANGE ; DESERTIFICATION ; RESTORATION ; MANAGEMENT ; COMMUNITY ; PATTERNS ; REGION
WOS类目	Ecology
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/2XILL650/218310
作者单位	1.Univ Sci & Technol Houari Boumed, Fac Biol Sci, Lab Plant Ecol & Environm LEVE, BP 32 El Alia, Algiers 1611, Algeria; 2.CIRAD, UMR SELMET, F-34398 Montpellier, France; 3.Univ Montpellier, SELMET, CIRAD, INRA,Montpellier SupAgro, Montpellier, France
推荐引用方式 GB/T 7714	Hammouda, R. F.,Huguenin, J.,Julien, L.,et al. Impact of agrarian practices and some pastoral uses on vegetation in Algerian steppe rangelands[J],2019,41(2):97-107.
APA	Hammouda, R. F.,Huguenin, J.,Julien, L.,&Nedjraoui, D..(2019).Impact of agrarian practices and some pastoral uses on vegetation in Algerian steppe rangelands.RANGELAND JOURNAL,41(2),97-107.
MLA	Hammouda, R. F.,et al."Impact of agrarian practices and some pastoral uses on vegetation in Algerian steppe rangelands".RANGELAND JOURNAL 41.2(2019):97-107.