Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.4311/2018ES0107 |
VARIATION OF delta C-13 IN PLANT-SOIL-CAVE SYSTEMS IN KARST REGIONS WITH DIFFERENT DEGREES OF ROCKY DESERTIFICATION IN SOUTHWEST CHINA AND IMPLICATIONS FOR PALEOENVIRONMENT RECONSTRUCTION | |
Li, Ting-Yong1,2; Huang, Chun-Xia1; Tian, Lijun3; Suarez, Marina B.3; Gao, Yongli3 | |
通讯作者 | Li, Ting-Yong |
来源期刊 | JOURNAL OF CAVE AND KARST STUDIES |
ISSN | 1090-6924 |
EISSN | 2331-3714 |
出版年 | 2018 |
卷号 | 80期号:4页码:212-228 |
英文摘要 | Speleothem delta C-13 has been taken as an indicator of the history of rocky desertification, and changes in delta C-13 have been thought to reflect the transition between C3 and C4 surface vegetation types. In this study the delta C-13 values of plants, soil organic matter (SOM), dissolved inorganic carbon (DIC) of waters and modern calcite deposits in caves were investigated at five sites with different rocky desertification degree (RDD) in Southwest China. The main results can be summarized as follows: (1) dominant vegetation was the C3 type, with average plant delta C-13 values ranging from -26 parts per thousand to -32 parts per thousand (V-PDB), and SOM delta C-13 values ranging from -20 parts per thousand to -25 parts per thousand (V-PDB) for all the sites; (2) large variation for the delta C-13 of DIC from drip water and modern calcite deposits in caves, which must be the result of multiple, inorganic factors in the epikarst zone and not the local vegetation type; (3) a proposed conceptual model to demonstrate that the evolution of Asian summer monsoon (ASM) can be recorded in speleothem delta C-13 due to changes in epikarst zone hydrological conditions, exerting influence on stable carbon isotopes’ fractionation, and not necessarily due to changing vegetation types in the subtropical zone of Southwest China. |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000456791700006 |
WOS关键词 | STABLE-ISOTOPE VARIATIONS ; ASIAN SUMMER MONSOON ; ORGANIC-MATTER ; SOREQ CAVE ; CLIMATE ; SPELEOTHEMS ; CARBON ; VARIABILITY ; RECORD ; WATER |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/210712 |
作者单位 | 1.Southwest Univ, Chongqing Key Lab Karst Environm, Sch Geog Sci, Chongqing 400715, Peoples R China; 2.Minist Land & Resources China, Field Sci Observat & Res Base Karst Ecoenvironm N, Chongqing 408435, Peoples R China; 3.Univ Texas San Antonio, Dept Geol Sci, San Antonio, TX 78249 USA |
推荐引用方式 GB/T 7714 | Li, Ting-Yong,Huang, Chun-Xia,Tian, Lijun,et al. VARIATION OF delta C-13 IN PLANT-SOIL-CAVE SYSTEMS IN KARST REGIONS WITH DIFFERENT DEGREES OF ROCKY DESERTIFICATION IN SOUTHWEST CHINA AND IMPLICATIONS FOR PALEOENVIRONMENT RECONSTRUCTION[J],2018,80(4):212-228. |
APA | Li, Ting-Yong,Huang, Chun-Xia,Tian, Lijun,Suarez, Marina B.,&Gao, Yongli.(2018).VARIATION OF delta C-13 IN PLANT-SOIL-CAVE SYSTEMS IN KARST REGIONS WITH DIFFERENT DEGREES OF ROCKY DESERTIFICATION IN SOUTHWEST CHINA AND IMPLICATIONS FOR PALEOENVIRONMENT RECONSTRUCTION.JOURNAL OF CAVE AND KARST STUDIES,80(4),212-228. |
MLA | Li, Ting-Yong,et al."VARIATION OF delta C-13 IN PLANT-SOIL-CAVE SYSTEMS IN KARST REGIONS WITH DIFFERENT DEGREES OF ROCKY DESERTIFICATION IN SOUTHWEST CHINA AND IMPLICATIONS FOR PALEOENVIRONMENT RECONSTRUCTION".JOURNAL OF CAVE AND KARST STUDIES 80.4(2018):212-228. |
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