Negative delta O-18-delta C-13 relationship of pedogenic carbonate from northern China indicates a strong response of C-3/C-4 biomass to the seasonality of Asian monsoon precipitation
文献类型：期刊论文
| 作者 | Yang, Shiling; Ding, Zhongli; Wang, Xu; Tang, Zihua; Gu, Zhaoyan |
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 2012-02-01 |
| 卷号 | 317页码:32-40 |
| 关键词 | Chinese loess Pedogenic carbonate East-Asian summer monsoon Stable isotopes C-3/C-4 vegetation Precipitation seasonality |
| ISSN号 | 0031-0182 |
| DOI | 10.1016/j.palaeo.2011.12.007 |
| 文献子类 | Article |
| 英文摘要 | Evaluating how future climate changes may impact C-3/C-4 biomass in East Asia depends largely on the understanding of the relationship between past C-3/C-4 variations and Asian monsoon circulation. The glacial-interglacial variations in C-3/C-4 biomass have been readily ascribed to the summer monsoon. However, the internal processes governing the link of C-3/C-4 vegetation to the Asian monsoon have not been clearly described. Here we present isotopic results of pedogenic carbonate from northern China for the Holocene, the last and penultimate interglacial periods. Comparison of the observed and predicted delta O-18 values of modern soil carbonate from gravelly soils suggests that pedogenic carbonate forms mainly in warm, rainy season. Carbonate nodules from the Chinese loess demonstrate a distinct negative delta O-18-delta C-13 relationship and a wider scatter of isotopic values in the southern Loess Plateau than in the northern part. By combining rainfall, delta O-18 of precipitation and the peak of C-3 and C-4 plant metabolism, we develop a conceptual model to explain the isotopic signatures of the carbonate nodules. Our model shows that a narrowly-focused season of monsoon precipitation at a specific site produces low delta O-18 values of soil water and simultaneously favors C-4 over C-3 plants. Our model further suggests that the scattered isotopic values of soil carbonate reflect a strong summer monsoon while the focused values indicate a weak summer monsoon. delta C-13 values of soil carbonate indicate a striking pattern of northward-increasing C-4 vegetation for the last interglacial, while a flat spatial pattern is seen for the penultimate interglacial and the Holocene. It is inferred that the summer monsoon was stronger during the last interglacial than during the penultimate interglacial and the Holocene, leading to a northward displacement of C-3 forest ecosystems into the southern Loess Plateau. In addition, an in-phase relationship between intra-nodule delta C-13 and delta O-18 values suggests a strong and possibly rapid response of C-3/C-4 biomass to the seasonality of Asian monsoon precipitation. In this context, if the last interglacial period (MIS 5) is taken as an analog for the projected near future, then C-3 plants may be favored in the south while C-4 plants may be efficient in the north. (C) 2011 Elsevier B.V. All rights reserved. |
| WOS关键词 | GLACIAL-INTERGLACIAL CYCLES ; LOESS PLATEAU ; ISOTOPIC COMPOSITION ; SUMMER MONSOON ; PLANT ABUNDANCE ; ORGANIC-CARBON ; SOIL-MOISTURE ; VEGETATION ; CLIMATE ; C-3 |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000301212300004 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Basic Research Program of China (973 Program)(2010CB950204) ; National Basic Research Program of China (973 Program)(2010CB950204) ; Chinese Academy of Sciences(KZC2-YW-Q1-03 ; Chinese Academy of Sciences(KZC2-YW-Q1-03 ; National Natural Science Foundation of China(40972228) ; National Natural Science Foundation of China(40972228) ; XDA05120204) ; XDA05120204) ; National Basic Research Program of China (973 Program)(2010CB950204) ; National Basic Research Program of China (973 Program)(2010CB950204) ; Chinese Academy of Sciences(KZC2-YW-Q1-03 ; Chinese Academy of Sciences(KZC2-YW-Q1-03 ; National Natural Science Foundation of China(40972228) ; National Natural Science Foundation of China(40972228) ; XDA05120204) ; XDA05120204) ; National Basic Research Program of China (973 Program)(2010CB950204) ; National Basic Research Program of China (973 Program)(2010CB950204) ; Chinese Academy of Sciences(KZC2-YW-Q1-03 ; Chinese Academy of Sciences(KZC2-YW-Q1-03 ; National Natural Science Foundation of China(40972228) ; National Natural Science Foundation of China(40972228) ; XDA05120204) ; XDA05120204) ; National Basic Research Program of China (973 Program)(2010CB950204) ; National Basic Research Program of China (973 Program)(2010CB950204) ; Chinese Academy of Sciences(KZC2-YW-Q1-03 ; Chinese Academy of Sciences(KZC2-YW-Q1-03 ; National Natural Science Foundation of China(40972228) ; National Natural Science Foundation of China(40972228) ; XDA05120204) ; XDA05120204) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/84064]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Yang, Shiling |
| 作者单位 | Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Shiling,Ding, Zhongli,Wang, Xu,et al. Negative delta O-18-delta C-13 relationship of pedogenic carbonate from northern China indicates a strong response of C-3/C-4 biomass to the seasonality of Asian monsoon precipitation[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2012,317:32-40. |
| APA | Yang, Shiling,Ding, Zhongli,Wang, Xu,Tang, Zihua,&Gu, Zhaoyan.(2012).Negative delta O-18-delta C-13 relationship of pedogenic carbonate from northern China indicates a strong response of C-3/C-4 biomass to the seasonality of Asian monsoon precipitation.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,317,32-40. |
| MLA | Yang, Shiling,et al."Negative delta O-18-delta C-13 relationship of pedogenic carbonate from northern China indicates a strong response of C-3/C-4 biomass to the seasonality of Asian monsoon precipitation".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 317(2012):32-40. |
入库方式： OAI收割
来源：地质与地球物理研究所
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