Synchronous 500-year oscillations of monsoon climate and human activity in Northeast Asia.
Nat Commun
; 10(1): 4105, 2019 09 11.
Article
in En
| MEDLINE
| ID: mdl-31511523
ABSTRACT
Prehistoric human activities were likely influenced by cyclic monsoon climate changes in East Asia. Here we report a decadal-resolution Holocene pollen record from an annually-laminated Maar Lake in Northeast China, a proxy of monsoon climate, together with a compilation of 627 radiocarbon dates from archeological sites in Northeast China which is a proxy of human activity. The results reveal synchronous ~500-year quasi-periodic changes over the last 8000 years. The warm-humid/cold-dry phases of monsoon cycles correspond closely to the intensification/weakening of human activity and the flourishing/decline of prehistoric cultures. Six prosperous phases of prehistoric cultures, with one exception, correspond approximately to warm-humid phases caused by a strengthened monsoon. This ~500-year cyclicity in the monsoon and thus environmental change triggered the development of prehistoric cultures in Northeast China. The cyclicity is apparently linked to the El Niño-Southern Oscillation, against the background of long-term Holocene climatic evolution. These findings reveal a pronounced relationship between prehistoric human activity and cyclical climate change.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Seasons
/
Climate Change
/
Human Activities
Limits:
Humans
Country/Region as subject:
Asia
Language:
En
Journal:
Nat Commun
Journal subject:
BIOLOGIA
/
CIENCIA
Year:
2019
Document type:
Article
Affiliation country: