Vegetation feedback causes delayed ecosystem response to East Asian Summer Monsoon Rainfall during the Holocene

Jun Cheng (), Haibin Wu (), Zhengyu Liu (), Peng Gu, Jingjing Wang, Cheng Zhao, Qin Li, Haishan Chen, Huayu Lu, Haibo Hu, Yu Gao, Miao Yu and Yaoming Song
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Jun Cheng: Nanjing University of Information Science and Technology
Haibin Wu: Institute of Geology and Geophysics, Chinese Academy of Sciences
Zhengyu Liu: The Ohio State University
Peng Gu: Nanjing University of Information Science and Technology
Jingjing Wang: Nanjing University
Cheng Zhao: Nanjing University
Qin Li: Institute of Geology and Geophysics, Chinese Academy of Sciences
Haishan Chen: Nanjing University of Information Science and Technology
Huayu Lu: Nanjing University
Haibo Hu: Nanjing University
Yu Gao: Peking University
Miao Yu: Nanjing University of Information Science and Technology
Yaoming Song: Nanjing University of Information Science and Technology

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract One long-standing issue in the paleoclimate records is whether East Asian Summer Monsoon peaked in the early Holocene or mid-Holocene. Here, combining a set of transient earth system model simulations with proxy records, we propose that, over northern China, monsoon rainfall peaked in the early Holocene, while soil moisture and tree cover peaked in the mid-Holocene. The delayed ecosystem (soil moisture and tree cover) response to rainfall is caused by the vegetation response to winter warming and the subsequent feedback with soil moisture. Our study provides a mechanism for reconciling different evolution behaviors of monsoon proxy records; it sheds light on the driving mechanism of the monsoon evolution and monsoon-ecosystem feedback over northern China, with implications to climate changes in other high climate sensitivity regions over the globe.

Date: 2021
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DOI: 10.1038/s41467-021-22087-2

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