DIALKYL GLYCEROL TETRAETHERS
; MASS ACCUMULATION RATE
; LAST GLACIAL MAXIMUM
; MONSOON PRECIPITATION
; PALEOSOL SEQUENCE
; DUST ACCUMULATION
; SOIL-TEMPERATURE
; NORTHERN CHINA
; ORGANIC-CARBON
; CLIMATE RECORD
WOS学科分类:
Multidisciplinary Sciences
WOS研究方向:
Science & Technology - Other Topics
英文摘要:
The complicity of long-term land surface temperature (LST) changes has been under investigated and less understood, hindering our understanding of the history and mechanism of terrestrial climate change. Here, we report the longest (800 thousand years) LSTs based on distributions of soil fossil bacterial glycerol dialkyl glycerol tetraethers preserved in well-dated loess-paleosol sequences at the center of the Chinese Loess Plateau. We have found a previously-unrecognized increasing early and prolonged warming pattern toward the north-western plateau at the onset of the past seven deglaciations, corresponding to the decrease in vegetation coverage, suggesting underlying surface vegetation or lack of has played an important role in regulating LSTs, superimposed on the fundamental global glacial-interglacial changes. Our results support that LSTs in semi-humid and semi-arid regions with little vegetation will be more sensitive to the anticipated global temperature rise, while improving vegetation coverage would reduce LSTs and thus ecological impacts.
1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China 3.Bryant Univ, Dept Sci & Technol, Coll Arts & Sci, Lab Terr Environm, Smithfield, RI 02917 USA 4.Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China
Recommended Citation:
Lu, Hongxuan,Liu, Weiguo,Yang, Hong,et al. 800-kyr land temperature variations modulated by vegetation changes on Chinese Loess Plateau[J]. NATURE COMMUNICATIONS,2019-01-01,10