Stable carbon isotopic composition of soil organic carbon in karst area in Central Guizhou, China

作     者：ZHENG Leping~(1,2), LI Tingyu~2, WAN Guojiang~2, WANG Shijie~2 and OUYANG Ziyuan~2 1. Department of Environmental Science and Engineering, Shanghai University, Shanghai 200072, China 2. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 

作者机构：Department of Environmental Science and Engineering Shanghai University Shanghai 200072 China State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China 

出 版 物：《Chinese Science Bulletin》 (科学通报(英文版))

年 卷 期：1999年第44卷第S2期

页      面：87-88页

学科分类：070902[理学-地球化学] 0709[理学-地质学] 07[理学] 

主　　题：δ¹³C of soil organic carbon karst area Guizhou Province. 

摘      要：THE stable carbon isotopic composition of soil organic carbon is a powerful tool for discussing the source ofsoil CO2 and the relationship of CO2 source and sink between soil CO2 and atmosphere CO2 and has beenwidely studied. However, few similar researches have been done in karst area which comprises 15%global terrestrial area. Preliminary research results about the stable carbon isotopic composition of soil organic carbon in karst area are reported here. In April and August 1998, the samples were collected continuously at 5-cm intervals from 0 to -45cm depth in meadow soil profile described by Zheng and located in the Hongfong Lake area in the central Guizhou Plateau which lies in the central East-Asia karst area. CO2 for δ13 C analysis was prepared