干旱区生态环境知识资源中心(Arid): Assessing geomorphological and pedological processes in the genesis of pre-desert soils from southern Tunisia

Arid

DOI	10.1016/j.catena.2019.104290
	Assessing geomorphological and pedological processes in the genesis of pre-desert soils from southern Tunisia
	Corti, G.1; Cocco, S.1; Hannachi, N.1; Cardelli, V 1; Weindorf, D. C.2; Marcellini, Mirco 3; Agnelli, A.4
通讯作者	Cocco, S.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2020
卷号	187
英文摘要	Arid environments are fragile and the associated soils are subject to serious threats like water deficiency, erosion, salt accumulation, and loss of fertility. In this context, understanding the processes involved in soil genesis may contribute toward protecting land from degradation. This study highlights the interconnection between geomorphic and pedogenetic processes in soil formation of the Jeffara Plain, a pre-Saharan area of southern Tunisia. To reach this goal, one coastal oasis (Chenini Nahel) and two inland environments (Matmata Nouvelle and Menzel Habib) were studied. After geomorphological and pedological surveys, the soils were sampled by genetic horizons and characterized by physical, mineralogical, and chemical analyses, and by microscope observation. Field observations and laboratory data suggest that soil formation in the Jeffara Plain was a combination of additions and losses controlled by climate changes. At Chenini Nahel, the soils developed by accumulation of wind-blown sediments coming from a close area dominated by gypsum-bearing rocks. At Matmata Nouvelle, the soils mainly formed from sedimentation of repeated mudflows during a rainy period between 9000 and 5000 years before present, followed by drought periods. Finally, the soils of Menzel Habib developed from an early gypsum formation in the presence of a salt-rich water table and repeated cycles of sedimentation/deflation of wind-blown materials. The different genesis of these pre-desert soils produced characteristic B horizons: Byy horizons with poorly developed soil structure at Chenini Nahel, Bw horizons with a hard rupture-resistance at Matmata Nouvelle, and Bk horizons at depth due to intense sedimentation with CA + BC horizons at the surface due to the accretion of wind-blown materials at Menzel Habib.
英文关键词	Aridisols Gypsum Hardpan Sphincterochila candidissima Jeffara Plain
类型	Article
语种	英语
国家	Italy ; USA
收录类别	SCI-E
WOS记录号	WOS:000514020400031
WOS关键词	ARID REGIONS ; NORTH-AFRICA ; BASIN ; RHIZOSPHERE ; MORPHOLOGY ; CLIMATE ; GYPSUM ; SEDIMENTATION ; PALEOCLIMATE ; ENVIRONMENT
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314223
作者单位	1.Univ Politecn Marche, Dipartimento Sci Agr Alimentari & Ambientali, Via Brecce Bianche, I-60131 Ancona, Italy; 2.Texas Tech Univ, Dept Plant & Soil Sci, Lubbock, TX 79409 USA; 3.Univ Politecn Marche, Dipartimento Sci & Ingn Mat Ambiente & Urbanist, Ancona, Italy; 4.Univ Perugia, Dipartimento Sci Agr Alimentari & Ambientali, Perugia, Italy
推荐引用方式 GB/T 7714	Corti, G.,Cocco, S.,Hannachi, N.,et al. Assessing geomorphological and pedological processes in the genesis of pre-desert soils from southern Tunisia[J],2020,187.
APA	Corti, G..,Cocco, S..,Hannachi, N..,Cardelli, V.,Weindorf, D. C..,...&Agnelli, A..(2020).Assessing geomorphological and pedological processes in the genesis of pre-desert soils from southern Tunisia.CATENA,187.
MLA	Corti, G.,et al."Assessing geomorphological and pedological processes in the genesis of pre-desert soils from southern Tunisia".CATENA 187(2020).