Knowledge Resource Center for Ecological Environment in Arid Area
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). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。