TY - JOUR
T1 - Holocene vegetation dynamics in response to climate change and human activities derived from pollen and charcoal records from southeastern China
AU - Zhao, Lin
AU - Ma, Chunmei
AU - Leipe, Christian
AU - Long, Tengwen
AU - Liu, Kam biu
AU - Lu, Huayu
AU - Tang, Lingyu
AU - Zhang, Yu
AU - Wagner, Mayke
AU - Tarasov, Pavel E.
N1 - Publisher Copyright:
© 2017
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/11/1
Y1 - 2017/11/1
N2 - Our knowledge about the Holocene evolution of the East Asian summer monsoon (EASM) and its relation to human activities remains incomplete. A detailed palynological investigation of two sediment sections from the Daiyun Mountain Nature Reserve (ca. 25°38′–25°44′N, 118°05′–118°21′E, Fujian Province) suggests EASM-controlled subtropical climate conditions that were wetter and warmer than present over the early and middle Holocene. After 5700 cal. yr BP, steadily increasing non-arboreal pollen and fern spore percentages imply an attenuation of the EASM. The general climate trend is interrupted by several century-scale changes in composition and concentration of arboreal pollen taxa around 8200, 7200, 6300, and 4400 cal. yr BP, coinciding with weaker precipitation (and lower temperature) as suggested by the EASM oxygen isotope record. Our results further support the hypothesis that the natural vegetation cover of southern China was not markedly affected by human activities until 3000 cal. yr BP. The pollen records suggest a quick decrease in the forest cover ca. 3000–2450 cal. yr BP followed by a generally open (agricultural) landscape and spread of secondary pine forests. This pattern is in line with a major population growth promoted by the southward expansion of rice-based agriculture across the region that postdates the widely accepted ‘Holocene climate optimum’ by several millennia. This highlights the multidimensional significance of this term, which is commonly used in palaeoenvironmental and archaeological studies and should be consequently applied with respect to the specific issue under consideration.
AB - Our knowledge about the Holocene evolution of the East Asian summer monsoon (EASM) and its relation to human activities remains incomplete. A detailed palynological investigation of two sediment sections from the Daiyun Mountain Nature Reserve (ca. 25°38′–25°44′N, 118°05′–118°21′E, Fujian Province) suggests EASM-controlled subtropical climate conditions that were wetter and warmer than present over the early and middle Holocene. After 5700 cal. yr BP, steadily increasing non-arboreal pollen and fern spore percentages imply an attenuation of the EASM. The general climate trend is interrupted by several century-scale changes in composition and concentration of arboreal pollen taxa around 8200, 7200, 6300, and 4400 cal. yr BP, coinciding with weaker precipitation (and lower temperature) as suggested by the EASM oxygen isotope record. Our results further support the hypothesis that the natural vegetation cover of southern China was not markedly affected by human activities until 3000 cal. yr BP. The pollen records suggest a quick decrease in the forest cover ca. 3000–2450 cal. yr BP followed by a generally open (agricultural) landscape and spread of secondary pine forests. This pattern is in line with a major population growth promoted by the southward expansion of rice-based agriculture across the region that postdates the widely accepted ‘Holocene climate optimum’ by several millennia. This highlights the multidimensional significance of this term, which is commonly used in palaeoenvironmental and archaeological studies and should be consequently applied with respect to the specific issue under consideration.
KW - Agriculture
KW - East Asian monsoon
KW - Hunter-gatherer life style
KW - Land cover change
KW - Peat accumulation
UR - http://www.scopus.com/inward/record.url?scp=85031506689&partnerID=8YFLogxK
U2 - 10.1016/j.palaeo.2017.06.035
DO - 10.1016/j.palaeo.2017.06.035
M3 - Article
AN - SCOPUS:85031506689
VL - 485
SP - 644
EP - 660
JO - Palaeogeography, Palaeoclimatology, Palaeoecology
JF - Palaeogeography, Palaeoclimatology, Palaeoecology
SN - 0031-0182
ER -