干旱区生态环境知识资源中心(Arid): Spring mounds of the Nefzaoua oases in Tunisia: Irreversible degradation of exceptional geomorphic structures

Arid

DOI	10.1016/j.jaridenv.2022.104806
	Spring mounds of the Nefzaoua oases in Tunisia: Irreversible degradation of exceptional geomorphic structures
	Raddadi, Afef; Podwojewski, Pascal
通讯作者	Podwojewski, P
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2022
卷号	205
英文摘要	The oases in the arid the Nefzaoua region in central-western Tunisia are associated with spring mounds. Spring mounds result from an exceptional succession of geomorphological, hydrogeological and climatic conditions and processes that follow each other in a specific order. They look like small volcanoes that range from 200 m to more than 2000 m in diameter and 3-30 m in height, which centres were once occupied by a pond fed by an artesian spring. They are at the origin of each oasis's irrigation system, which radiates from the mound's foot. Due to intense irrigation of intensive date palm plantations (Phoenix dactylifera) in recent decades, all artesian springs dried out. We established a complete inventory and typology (i.e. location, dimension, and types of degradation) of all spring mounds in the Nefzaoua region. Overall, in an area of 3000 km2, 126 spring mounds of 7 types were identified, of which 112 (89%) were degraded. Due to the low salt content in spring mound sediments, they are excavated and used as a soil amendment to expand new palm plantations. Only 14 mounds (11%) are presently preserved. Their qualification as a geomorphosite could preserve them from complete destruction.
英文关键词	Spring mound Degradation Oases Geomorphosite Tunisia
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000829856000003
WOS关键词	REGION ; INVENTORY ; AQUIFER ; SCALE
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/2XILL650/393304
推荐引用方式 GB/T 7714	Raddadi, Afef,Podwojewski, Pascal. Spring mounds of the Nefzaoua oases in Tunisia: Irreversible degradation of exceptional geomorphic structures[J],2022,205.
APA	Raddadi, Afef,&Podwojewski, Pascal.(2022).Spring mounds of the Nefzaoua oases in Tunisia: Irreversible degradation of exceptional geomorphic structures.JOURNAL OF ARID ENVIRONMENTS,205.
MLA	Raddadi, Afef,et al."Spring mounds of the Nefzaoua oases in Tunisia: Irreversible degradation of exceptional geomorphic structures".JOURNAL OF ARID ENVIRONMENTS 205(2022).