Preliminary analysis on the relationships between Tibetan Plateau NDVI change and its surface heat source and precipitation of China |
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| Authors: | Wei Hua GuangZhou Fan DingWen Zhou ChangJian Ni XueMin Li YongLi Wang YaQin Liu XianLun Huang |
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| Institution: | (1) State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China;(2) Institute of Earth and Environment, Chinese Academy of Sciences, Xi’an, 710075, China |
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| Abstract: | The tectonic-sedimentary cycles and environmental evolution in Southwest Monsoon area since 2.78 Ma were reconstructed, based
on the analyses of lithology, grain size, carbonate content, loss-on-ignition (LOI) and pollen in a 737.72 m sediment core
from the Heqing Basin, China. The results indicated that the lake basin was formed in about 2.78 Ma. Continuous lacustrine
sediment was preserved since 2.65 Ma. Three stages of tectonic-sedimentary cycle were revealed, which were 2.78–1.55, 1.55–0.99
and 0.99–0 Ma. The environmental evolution in Heqing area was influenced by uplift of the Qinghai-Tibetan Plateau, the resulting
variation of Southwest Monsoon and the earth orbital-scale periodicity.
Supported by the Key Projects of the National Natural Science Foundation of China (Grant Nos. 40331003 and 40625007) |
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| Keywords: | tectonic-sedimentary cycles Southwest Monsoon environmental evolution the Heqing Basin |
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