干旱区生态环境知识资源中心(Arid): Terrace agriculture in a mountainous arid environment - A study of soil quality and regolith provenance: Jabal Akhdar (Oman)

Arid

DOI	10.1016/j.geoderma.2019.114152
	Terrace agriculture in a mountainous arid environment - A study of soil quality and regolith provenance: Jabal Akhdar (Oman)
	Moraetis, Daniel 1; Al Kindi, Sumaya Salim 2; Al Saadi, Sara Kalifah 2; Al Shaibani, Ahmed Abdul Raoof Ali 3; Pavlopoulos, Kosmas 4; Scharf, Andreas 2; Mattern, Frank 2; Harrower, Michael J.5; Pracejus, Bernhard 2
通讯作者	Moraetis, Daniel
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2020
卷号	363
英文摘要	In the Sultanate of Oman remnants of deteriorating terrace agricultural systems offer important insights into long-term human adaptation in the arid tropics. Irrigation and terrace agriculture in the mountainous Jabal Akhdar region reveal historic agricultural practices in a rugged, high elevation context. The present study examines soil quality and regolith provenance in abandoned agricultural soil terraces. Three soil profiles in each of the Villages of Hadash and Wijma were excavated and analyzed. Physical, chemical and mineralogical analyses were conducted for all soil horizons. In addition, six other soils, 3 possible soil parent rocks (regolith) and soil's bedrock were collected. Soil ages were constrained by C-14 assays and stable isotope, (C-13 and O-18) on the bulk carbonates in the calcrete (caliche). The results demonstrate that both sites display poor soil quality with very low average total organic carbon (TOC) (6.2-5.0 g kg(-1)) and mean weight diameter (MWD; 0.27-0.48 mm), with low water stable aggregate content ( < 42%). All the geochemical, mineralogical and the thin section analyses show that the soils exhibit unique characteristics that differ from those of other sediments (possible parent regolith) and soils in the vicinity. The finding of ostracod shells in the soil terraces in both areas and C-14 dating of calcrete (10.193 +/- 30-13.887 +/- 40 a BP) indicate that regolith was human-transported to terraces to create soil. The C-14 ages of the bulk carbonates match well with a dry period of high calcite precipitation contemporaneous to the Younger Dryas. The Hadash and Wijma soil terraces are located similar to 45 km away from each other, but still display significant similarities in terms of regolith provenance and soil development and were likely filled with regolith from the same source. These results offer new perspective on agricultural terrace development and oasis agriculture in a rugged, high-elevation, arid environment.
英文关键词	Terrace agriculture Arid environments Calcrete Soil provenance
类型	Article
语种	英语
国家	U Arab Emirates ; Oman ; USA
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000515198500016
WOS关键词	AL HAJAR MOUNTAINS ; LAND-USE CHANGE ; ARABIAN PENINSULA ; ORGANIC-MATTER ; EROSION ; VEGETATION ; CARBON ; SEQUESTRATION ; GROUNDWATER ; MICROCODIUM
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314583
作者单位	1.Univ Sharjah, Dept Appl Phys & Astron, PO 27272, Sharjah, U Arab Emirates; 2.Sultan Qaboos Univ, Dept Earth Sci, Muscat 123, Oman; 3.Sultan Qaboos Univ, Petr & Chem Engn Dept, Muscat 123, Oman; 4.Sorbonne Univ Abu Dhabi, Geog & Planning Dept, PO 38044, Abu Dhabi, U Arab Emirates; 5.Johns Hopkins Univ, Dept Near Eastern Studies, Baltimore, MD 21218 USA
推荐引用方式 GB/T 7714	Moraetis, Daniel,Al Kindi, Sumaya Salim,Al Saadi, Sara Kalifah,et al. Terrace agriculture in a mountainous arid environment - A study of soil quality and regolith provenance: Jabal Akhdar (Oman)[J],2020,363.
APA	Moraetis, Daniel.,Al Kindi, Sumaya Salim.,Al Saadi, Sara Kalifah.,Al Shaibani, Ahmed Abdul Raoof Ali.,Pavlopoulos, Kosmas.,...&Pracejus, Bernhard.(2020).Terrace agriculture in a mountainous arid environment - A study of soil quality and regolith provenance: Jabal Akhdar (Oman).GEODERMA,363.
MLA	Moraetis, Daniel,et al."Terrace agriculture in a mountainous arid environment - A study of soil quality and regolith provenance: Jabal Akhdar (Oman)".GEODERMA 363(2020).