干旱区生态环境知识资源中心(Arid): Soils in ancient irrigated agricultural terraces in the Atacama Desert, Chile

Arid

DOI	10.1002/gea.21834
	Soils in ancient irrigated agricultural terraces in the Atacama Desert, Chile
	Sandor, Jonathan A.; Huckleberry, Gary; Hayashida, Frances M.; Parcero-Oubina, Cesar; Salazar, Diego; Troncoso, Andres; Ferro-Vazquez, Cruz
通讯作者	Sandor, JA (corresponding author), POB 1994, Corrales, NM 87048 USA.
来源期刊	GEOARCHAEOLOGY-AN INTERNATIONAL JOURNAL
ISSN	0883-6353
EISSN	1520-6548
出版年	2021-01
英文摘要	The Atacama Desert is among the driest places on Earth, yet ancient agricultural systems are present in the region. Here, we present a study of terraced agricultural soils in the high-altitude eastern margin of the Atacama Desert in northern Chile, mainly dating to the Late Intermediate Period (ca. 950-1400 AD) and Inka period (ca. 1400-1536 AD). Terraced fields were compartmentalized to distribute limited irrigation water originating mainly from springs. Natural soils used for agriculture are mostly Aridisols developed on Pleistocene alluvial fan terraces and hillslopes underlain by volcanic bedrock. One research objective is to evaluate long-term soil change from agriculture. In this hyperarid climate, agriculture is only possible with irrigation, so natural soils on the same geomorphic surface adjacent to irrigated soils provide baseline data for assessing anthropogenic soil change. Data from soil profiles and surface transects indicate intentional soil change through terracing, removal of soil rock fragments, and probable fertilization. Agricultural soils have anthropogenic horizons ranging from 16 to 54 cm thick. Most agricultural soils have higher phosphorus levels, suggesting enrichment from fertilization. Changes in soil organic carbon and nitrogen are also evident. Unintentional anthropogenic soil change resulted from CaCO3 input through irrigation with calcareous spring water. Initial studies suggest that agriculture here was sustainable in the sense of conserving soils, and maintaining and possibly improving soil productivity over centuries.
英文关键词	ancient agriculture anthropogenic soil anthrosol Atacama Desert irrigation agriculture terrace agriculture
类型	Article ; Early Access
语种	英语
开放获取类型	Green Published, hybrid
收录类别	SCI-E ; AHCI
WOS记录号	WOS:000607843600001
WOS类目	Archaeology ; Geosciences, Multidisciplinary
WOS研究方向	Archaeology ; Geology
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352197
作者单位	[Sandor, Jonathan A.] Iowa State Univ, Dept Agron, Ames, IA USA; [Huckleberry, Gary] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA; [Hayashida, Frances M.] Univ New Mexico, Dept Anthropol, Albuquerque, NM 87131 USA; [Parcero-Oubina, Cesar] CSIC, Inst Ciencias Patrimonio, Santiago De Compostela, Spain; [Salazar, Diego; Troncoso, Andres] Univ Chile, Dept Antropol, Santiago, Chile; [Ferro-Vazquez, Cruz] Univ Algarve, Interdisciplinary Ctr Archaeol & Evolut Human Beh, Faro, Portugal
推荐引用方式 GB/T 7714	Sandor, Jonathan A.,Huckleberry, Gary,Hayashida, Frances M.,et al. Soils in ancient irrigated agricultural terraces in the Atacama Desert, Chile[J]. University of Arizona,2021.
APA	Sandor, Jonathan A..,Huckleberry, Gary.,Hayashida, Frances M..,Parcero-Oubina, Cesar.,Salazar, Diego.,...&Ferro-Vazquez, Cruz.(2021).Soils in ancient irrigated agricultural terraces in the Atacama Desert, Chile.GEOARCHAEOLOGY-AN INTERNATIONAL JOURNAL.
MLA	Sandor, Jonathan A.,et al."Soils in ancient irrigated agricultural terraces in the Atacama Desert, Chile".GEOARCHAEOLOGY-AN INTERNATIONAL JOURNAL (2021).