DOI: 10.1016/j.quascirev.2013.05.022
Scopus记录号: 2-s2.0-84879782836
论文题名: Pre-Hispanic agricultural decline prior to the Spanish Conquest in southern Central America
作者: Taylor Z.P. ; Horn S.P. ; Finkelstein D.B.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 73 起始页码: 196
结束页码: 200
语种: 英语
英文关键词: Agricultural decline
; Costa Rica
; Drought
; Lake sediments
; Pre-Columbian
; Prehistoric agriculture
; Stable carbon isotopes
Scopus关键词: Agricultural decline
; Costa Rica
; Lake sediments
; Pre-Columbian
; Stable carbon isotopes
; Carbon
; Drought
; Isotopes
; Lakes
; Sediments
; Agriculture
; agricultural practice
; archaeological evidence
; carbon isotope
; civilization
; crop yield
; drought
; growing season
; lacustrine deposit
; paleoclimate
; paleoenvironment
; prehistoric
; stable isotope
; vegetation history
; watershed
; Costa Rica
; Mexico [North America]
英文摘要: Archeological and paleoenvironmental records from southern Central America attribute population collapse to the Spanish Conquest about 500 years ago. Paleoclimate records from the circum-Caribbean have shown evidence of severe, regional droughts that contributed to the collapse of the Mayan Civilization, but there are few records of these droughts in southern Central America and no records of their effects on prehistoric populations in the region. Here we present a high-resolution lake sediment record of prehistoric agricultural activities using bulk sediment stable carbon isotopes from Laguna Zoncho, Costa Rica. We find isotopic evidence that agriculture was nearly absent from the watershed approximately 220 years prior to the Spanish arrival in Costa Rica and identify two distinct periods of agricultural decline, 1150-970 and 860-640cal yr BP, which correspond to severe droughts in central Mexico. We attribute decreases in agriculture to a weakened Central American monsoon, which would have shortened the growing season at Laguna Zoncho, reduced crop yields, and negatively affected prehistoric populations. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60590
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Geography, University of Tennessee, 1000 Phillip Fulmer Way, Knoxville, TN 37996, United States; Department of Earth and Planetary Sciences, University of Tennessee, 1412 Circle Dr., Knoxville, TN 37996, United States
Recommended Citation:
Taylor Z.P.,Horn S.P.,Finkelstein D.B.. Pre-Hispanic agricultural decline prior to the Spanish Conquest in southern Central America[J]. Quaternary Science Reviews,2013-01-01,73