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DOI	10.1016/j.quaint.2021.03.011
	Speculation for quantifying increased C-4 plants under future climate conditions: Inner Mongolia, China case study
	Ma, Xueyun; Wei, Zhifu; Wang, Yongli; Wang, Gen; Zhang, Ting; Ma, He; He, Wei; Yu, Xiaoli; Li, Shangkun; Fan, Qiaohui
通讯作者	Wei, ZF (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources Res, Lanzhou 730000, Gansu, Peoples R China. ; Wang, YL (通讯作者)，Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China. ; Wang, YL (通讯作者)，CAS Ctr Excellence Life & Paleoenvironm, Beijing 100029, Peoples R China.
发表日期	2021
ISSN	1040-6182
EISSN	1873-4553
起始页码	97
结束页码	110
卷号	592
英文摘要	Alternating conditions from cold to warm periods since the Late Glacial provided a significant contrast for future hydroclimatic variation, as did the corresponding variation in vegetation. To predict the potential variability in C-3/C-4 biomass under future warmer climatic conditions, we determined the current spatiotemporal distribution of C-3 and C-4 vegetation by estimating the variability of delta C-13(org) values in 125 topsoil samples and investigating the geological period variability of C-4 plants growing in Inner Mongolia, China. We examined the factors contributing to the growth of C-4 plants and the variability in C-4 plants for each 1 degrees C increase in temperature during recent and geological times. The results revealed that the relative abundance of C-4 plants in Inner Mongolia shows an increasing trend from the northwest to the southeast. The biomass of C-4 plants was found to be positively correlated with temperature, although weakly correlated with precipitation, thereby indicating that temperature is the primary climatic factor determining the growth of C-4 plants in this region. Furthermore, we found that in response to each 1 degrees C increase in temperature, there would be an approximate 2.1% increase in the spatiotemporal variation of present-day C-4 plant biomass in Inner Mongolia, whereas during the geological period, there was a corresponding increase of 10.7%. Comparatively, the spatiotemporal variation in present-day C-4 biomass on the Chinese Loess Plateau has undergone a 4.0% increase in response to each 1 degrees C increase in temperature, whereas 6.0% and 7.5% increases in the geological period were estimated based on core samples taken from the Lantian and Xingyang sections, respectively. Interestingly, for each 1 degrees C increase in temperature during the current growth month of C-4 plants, there is a 6.6% increase in C-4 biomass, which is essentially consistent with the results obtained for the geological period results (i.e., 6.0% and 7.5% for the Lantian and Xingyang sections, respectively). The findings of this study reveal a distinct contrast in the variation of C-4 plants during recent and geological periods, thereby enabling us to quantitatively estimate the potential changes in C-4 vegetation in response to projected climate conditions.
关键词	GLACIAL-INTERGLACIAL VARIATIONS CARBON ISOTOPIC COMPOSITION LOESS PLATEAU ORGANIC-MATTER EAST-ASIA MONSOON PRECIPITATION DELTA-C-13 ANALYSES DOMINANT CONTROL QUANTUM YIELD LATE MIOCENE
英文关键词	Organic carbon isotope; C-4 plant; Climate change; Inner Mongolia; Chinese loess plateau
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000660398500001
来源期刊	QUATERNARY INTERNATIONAL
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254407
作者单位	[Ma, Xueyun; Wei, Zhifu; Wang, Gen; Zhang, Ting; He, Wei; Yu, Xiaoli; Li, Shangkun; Fan, Qiaohui] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources Res, Lanzhou 730000, Gansu, Peoples R China; [Wang, Yongli; Ma, He] Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China; [Wang, Yongli; Ma, He] CAS Ctr Excellence Life & Paleoenvironm, Beijing 100029, Peoples R China; [Ma, Xueyun; Zhang, Ting; Ma, He; He, Wei; Yu, Xiaoli; Li, Shangkun] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ma, Xueyun,Wei, Zhifu,Wang, Yongli,et al. Speculation for quantifying increased C-4 plants under future climate conditions: Inner Mongolia, China case study[J]. 中国科学院西北生态环境资源研究院,2021,592.
APA	Ma, Xueyun.,Wei, Zhifu.,Wang, Yongli.,Wang, Gen.,Zhang, Ting.,...&Fan, Qiaohui.(2021).Speculation for quantifying increased C-4 plants under future climate conditions: Inner Mongolia, China case study.QUATERNARY INTERNATIONAL,592.
MLA	Ma, Xueyun,et al."Speculation for quantifying increased C-4 plants under future climate conditions: Inner Mongolia, China case study".QUATERNARY INTERNATIONAL 592(2021).