DOI: 10.1016/j.quascirev.2018.04.004
Scopus记录号: 2-s2.0-85045567110
论文题名: Effects of late Holocene climate variability and anthropogenic stressors on the vegetation of the Maya highlands
作者: Franco-Gaviria F. ; Correa-Metrio A. ; Cordero-Oviedo C. ; López-Pérez M. ; Cárdenes-Sandí G.M. ; Romero F.M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 189 起始页码: 76
结束页码: 90
语种: 英语
英文关键词: Central America
; Holocene
; Human impact
; Maya
; Montane cloud forest
; Paleoecology
; Vegetation dynamics
Scopus关键词: Biodiversity
; Climatology
; Drought
; Forestry
; Moisture
; Central America
; Cloud forest
; Holocenes
; Human impact
; Maya
; Paleoecology
; Vegetation dynamics
; Vegetation
; anthropogenic effect
; climate effect
; climate variation
; cloud forest
; environmental history
; Holocene
; human activity
; moisture content
; mountain environment
; paleoecology
; temperate environment
; trend analysis
; tropical environment
; upland region
; vegetation dynamics
; vegetation type
; Belize [Central America]
; Chiapas
; Maya Mountains
; Mexico [North America]
英文摘要: Climate variability and human activities have shaped the vegetation communities of the Maya region of southern Mexico and Central America on centennial to millennial timescales. Most research efforts in the region have focused on the lowlands, with relatively little known about the environmental history of the regional highlands. Here we present data from two sediment sequences collected from lakes in the highlands of Chiapas, Mexico. Our aim was to disentangle the relative contributions of climate and human activities in the development of regional vegetation during the late Holocene. The records reveal a long-term trend towards drier conditions with superimposed centennial-scale droughts. A declining moisture trend from 3400 to 1500 cal yr BP is consistent with previously reported southward displacement of the Intertropical Convergence Zone, whereas periodic droughts were probably a consequence of drivers such as El Niño. These conditions, together with dense human occupation, converted the vegetation from forest to more open systems. According to the paleoecological records, cultural abandonment of the area occurred ca. 1500 cal yr BP, favoring forest recovery that was somewhat limited by low moisture availability. About 600 cal yr BP, wetter conditions promoted the establishment of modern montane cloud forests, which consist of a diverse mixture of temperate and tropical elements. The vegetation types that occupied the study area during the last few millennia have remained within the envelope defined by the modern vegetation mosaic. This finding highlights the importance of microhabitats in the maintenance biodiversity through time, even under scenarios of high climate variability and anthropogenic pressure. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112204
Appears in Collections: 气候减缓与适应
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作者单位: Posgrado en Ciencias de la Tierra, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; Instituto de Geología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico; Escuela Centroamericana de Geología, Universidad de Costa Rica, San José, Costa Rica
Recommended Citation:
Franco-Gaviria F.,Correa-Metrio A.,Cordero-Oviedo C.,et al. Effects of late Holocene climate variability and anthropogenic stressors on the vegetation of the Maya highlands[J]. Quaternary Science Reviews,2018-01-01,189