中国岩溶2016，Vol.35Issue(2)：173-178,6.DOI:10.11932/karst20160206
长江流域不同地质生态环境土壤碳酸酐酶活性、有机碳含量及其相关性
Soil carbonic anhydrase activity,soil organic carbon and their relationships in different geological eco-environments of the Changjiang River basin
摘要
Abstract
Ten sampling plots in different geological eco-environments were selected along the main stream and tributaries of the Changjiang River basin.Carbonic Anhydrase (CA)activity and Soil Organic Carbon (SOC)content in surface soils (0~20 cm)were studied and relationships between CA activity and SOC con-tent were discussed.The results were as follows.(1)The CA activities in surface soils of karst areas were higher than those in non-karst areas (P<0.01).Different geological types and vegetation types resulted in different CA activities.(2)The plot GC in karst areas had the highest annual average SOC content (1.09%) while the plot WZ in non-karst area had the lowest annual average SOC content (0.29%).Moreover,the av-erage surface SOC content in winter was significantly higher than that in summer (P<0.01).(3)Correla-tion analysis showed that CA activities in karst surface soils correlated positively with SOC contents in all seasons.The result of this paper lays a foundation for further studies on the role of soil CA in carbon seques-tration in karst ecosystems of river basins.关键词
长江流域/不同地质生态环境/碳酸酐酶(CA)/土壤有机碳(SOC)/岩溶区Key words
Changjiang River basin/different geological eco-environment/carbonic anhydrase(CA)/soil or-ganic carbon(SOC)/karst area分类
农业科技引用本文复制引用
潘伟志,Sila Onesmus Nzung’,申泰铭,李为,王晨玮,余龙江..长江流域不同地质生态环境土壤碳酸酐酶活性、有机碳含量及其相关性[J].中国岩溶,2016,35(2):173-178,6.基金项目
中国地质调查局地质调查工作项目子项目(12120113005200)子课题 （12120113005200）
