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Changes in plant richness and evenness since Marine Isotope Stage 2 on the Chinese Loess Plateau
Yang, Xiaoxiao1,2; Jiang, Wenying1; Yang, Shiling1; Kong, Zhaochen3; Luo, Yunli3
2018-11-15
发表期刊PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
卷号509页码:137-143
摘要The warming period from Marine Isotope Stage 2 (MIS 2) to the mid-Holocene provides a useful analog for assessing the impact of global warming on plant diversity. Previously published pollen records from ten loess sections across the Chinese Loess Plateau (CLP) have shown that herbs were dominant during both MIS 2 and the mid-Holocene. During MIS 2, the vegetation in the eastern part was characterized mainly by Artemisia, together with Taraxacum-type, Echinops-type and Chenopodiaceae; and by Echinops-type, Chenopodiaceae, Nitraria, Ephedra and Picea in the western part. During the mid-Holocene, Artemisia remained dominant, while Echinops-type, Chenopodiaceae, Nitraria, Ephedra and Picea decreased, and Poaceae became more prevalent. From west to east during the mid-Holocene, Corylus, Quercus and Pinus increased, while Artemisia and Taraxacum-type decreased. In the present study, two indices of plant diversity (richness and evenness) were analyzed using these published pollen data. The results demonstrate that from MIS 2 to the mid-Holocene, plant richness increased at most of the studied sites, while plant evenness decreased. The increase in plant richness during the warming interval is in accordance with numerous geological records, but differs from modern observations of the response of biodiversity to ongoing global warming. The decrease in plant evenness is attributed to the increase in precipitation, associated with the intensification of the East Asian summer monsoon, which resulted in an increase in the dominance of Artemisia, and the corresponding inhibition in the growth of other species. Therefore, our results imply that plant richness in northern China would be expected to increase in a climate warming scenario, while changes in plant evenness would largely depend on interspecific competition within a plant community. (C) 2017 Elsevier B.V. All rights reserved.
关键词Richness Evenness Pollen MIS 2 Mid-Holocene Chinese Loess Plateau
DOI10.1016/j.palaeo.2017.02.021
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
关键词[WOS]LAST GLACIAL MAXIMUM ; PALYNOLOGICAL RICHNESS ; CLIMATE-CHANGE ; NORTHERN CHINA ; GRAIN-SIZE ; GEOMORPHOLOGICAL HETEROGENEITY ; ENVIRONMENTAL HETEROGENEITY ; TERRESTRIAL ECOSYSTEMS ; MONSOON PRECIPITATION ; FLORISTIC DIVERSITY
语种英语
资助项目National Natural Science Foundation of China[41472318] ; National Natural Science Foundation of China[41611530697] ; National Natural Science Foundation of China[41172157]
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS研究方向Physical Geography ; Geology ; Paleontology
WOS类目Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号WOS:000447578200012
出版者ELSEVIER SCIENCE BV
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/89201
专题新生代地质与环境院重点实验室
通讯作者Jiang, Wenying
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
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Yang, Xiaoxiao,Jiang, Wenying,Yang, Shiling,et al. Changes in plant richness and evenness since Marine Isotope Stage 2 on the Chinese Loess Plateau[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2018,509:137-143.
APA Yang, Xiaoxiao,Jiang, Wenying,Yang, Shiling,Kong, Zhaochen,&Luo, Yunli.(2018).Changes in plant richness and evenness since Marine Isotope Stage 2 on the Chinese Loess Plateau.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,509,137-143.
MLA Yang, Xiaoxiao,et al."Changes in plant richness and evenness since Marine Isotope Stage 2 on the Chinese Loess Plateau".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 509(2018):137-143.
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