Proxy of monsoon seasonality in carbon isotopes from paleosols of the southern Chinese Loess Plateau

Abstract

Research Article| November 01, 1998 Proxy of monsoon seasonality in carbon isotopes from paleosols of the southern Chinese Loess Plateau Hong Wang; Hong Wang 1Illinois State Geological Survey, 615 E. Peabody, Champaign, Illinois 61820 Search for other works by this author on: GSW Google Scholar Leon R. Follmer Leon R. Follmer 1Illinois State Geological Survey, 615 E. Peabody, Champaign, Illinois 61820 Search for other works by this author on: GSW Google Scholar Author and Article Information Hong Wang 1Illinois State Geological Survey, 615 E. Peabody, Champaign, Illinois 61820 Leon R. Follmer 1Illinois State Geological Survey, 615 E. Peabody, Champaign, Illinois 61820 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1998) 26 (11): 987–990. https://doi.org/10.1130/0091-7613(1998)026<0987:POMSIC>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Hong Wang, Leon R. Follmer; Proxy of monsoon seasonality in carbon isotopes from paleosols of the southern Chinese Loess Plateau. Geology 1998;; 26 (11): 987–990. doi: https://doi.org/10.1130/0091-7613(1998)026<0987:POMSIC>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Soil organic matter (SOM) and soil carbonate (SC) are common constituents in soils and are directly related to plant growth. SOM accumulates gradually from the decomposition of plant material over time, whereas SC formation is biased to dry-season soil-dissolved CO2 that derives from plant respiration during a drying phase of the growing season. In some mixed C3-C4 environments, the peak of C3 and C4 plant metabolism differs seasonally, and the carbon source that contributes to the SOM and SC can be different. Consequently, δ13SOM values reflect an annual average of the floral biomass, but δ13SC values reflect a seasonal aspect of the plant community. The relationship between δ13CSC and δ13CSOM is mainly controlled by how different the seasonal conditions are. Our results suggest that the relationship is a seasonal proxy that can be used to differentiate the seasonality effects of Indian, East Asian, and Siberian monsoons on the Chinese Loess Plateau during the last interglacial-glacial cycle. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.