气候变化领域集成服务门户(CCPortal): The growth of the Tibetan Plateau shaped hydrologic cycle and ecosystem in eastern Asia: Progress and perspectives

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DOI	10.1360/TB-2022-0761
	The growth of the Tibetan Plateau shaped hydrologic cycle and ecosystem in eastern Asia: Progress and perspectives
	Li, Shufeng; Zhao, Jiagang; Farnsworth, Alex; Valdes, Paul J.; Liu, Jia; Huang, Jian; Zhou, Zhekun; Su, Tao
发表日期	2023
ISSN	0023-074X
EISSN	2095-9419
起始页码	1567
结束页码	1579
卷号	68 期号:12
英文摘要	The growth of the Tibetan topography changed the climate and ecosystem in eastern Asia during the Cenozoic. Here, we briefly summarize previous research results on the impact of Tibetan topographic evolution using proxy and numerical modeling data on both the hydrologic cycle and the ecosystem of eastern Asia. To date, the topographic evolution of the Tibetan Plateau during the Cenozoic has generated much debate. Three different models relating to the topographic evolution of central Tibet during the Paleogene have been proposed, including (1) the south Tibetan (Lunpola Basin) uplift model, (2) the proto-Tibetan Plateau model, and (3) the central valley model. Recent studies have shown that the Tibetan Plateau experienced differential surface uplift, rather than uplifting as one monolithic unit. Numerical paleoclimate studies have shown that the Tibetan uplift significantly altered the climate of East Asia through the enhancement of the East Asian monsoon (increasing precipitation), which also led to the aridification of the Asian interior. However, understanding which terrane was primarily responsible has been challenging. Here, we show a series of paleoclimate simulations using the UK Metoffice HadAM3 model and demonstrate that the growth phase of what is the present-day northern Tibetan Plateau has dramatically changed the climate system. Uplift has led to increased precipitation in eastern Asia, as well as a pronounced increase in winter precipitation in southern China. Based on previous HadAM3 simulations, the results show surface runoff increased dramatically in the winter of south China as a result of modification of the regional hydrological cycle. Tibetan uplift is shown to significantly enhance soil moisture in south China while reducing soil moisture in northern China. Studies on soil moisture simulated from previous work show it increased as precipitation increased, especially the deep layer of soil moisture in winter. This modified the biosphere transitioning from an arid/semi-arid to humid/semi-humid dominated vegetation classification, shaping modern vegetation and biodiversity patterns in eastern Asia. The Miocene witnessed a transition to a warm and humid climate in most parts of eastern and southern China, but an arid climate still dominated northwestern China. Large amounts of thermophilic and hygrophilous plants are distributed in both southern and eastern China. From the middle to late Miocene, both cooling and drying trends drove vegetation change. C4 plants developed from the early late Miocene and expanded during the late Miocene. The subsequent cooling and drying climate from the Pliocene to the Quaternary facilitated the expansion and diversification of grass. While the impact of the growth of the Tibetan Plateau as we know it today on precipitation patterns in eastern Asia has been well interpreted, there are still many uncertainties needing further exploration. For example, more robust data on topographical changes of the Tibetan Plateau, understanding paleoclimate model uncertainty, high temporal resolution in paleoclimatic simulations for different geological periods, conducting high-resolution paleoclimate simulations that better capture complex topographies, as well as exploring best practices in combining and interpreting both numerical and proxy data on the evolution of hydrologic cycle and ecosystems in Eastern Asia resulting from global and regional climate change.
关键词	Tibetan Plateau numeric simulation hydrology surface runoff soil moisture vegetation
英文关键词	EURASIAN CLIMATE; MIDDLE MIOCENE; LUNPOLA BASIN; YELLOW-RIVER; UPLIFT; MONSOON; HISTORY; EOCENE; INTENSIFICATION; BIODIVERSITY
WOS研究方向	Multidisciplinary Sciences
WOS记录号	WOS:000975830600012
来源期刊	CHINESE SCIENCE BULLETIN-CHINESE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283794
作者单位	Chinese Academy of Sciences; Xishuangbanna Tropical Botanical Garden, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; University of Bristol; Chinese Academy of Sciences; Kunming Institute of Botany, CAS
推荐引用方式 GB/T 7714	Li, Shufeng,Zhao, Jiagang,Farnsworth, Alex,et al. The growth of the Tibetan Plateau shaped hydrologic cycle and ecosystem in eastern Asia: Progress and perspectives[J],2023,68(12).
APA	Li, Shufeng.,Zhao, Jiagang.,Farnsworth, Alex.,Valdes, Paul J..,Liu, Jia.,...&Su, Tao.(2023).The growth of the Tibetan Plateau shaped hydrologic cycle and ecosystem in eastern Asia: Progress and perspectives.CHINESE SCIENCE BULLETIN-CHINESE,68(12).
MLA	Li, Shufeng,et al."The growth of the Tibetan Plateau shaped hydrologic cycle and ecosystem in eastern Asia: Progress and perspectives".CHINESE SCIENCE BULLETIN-CHINESE 68.12(2023).