首页 | 本学科首页   官方微博 | 高级检索  
     检索      

土壤有机碳激发效应研究进展
引用本文:陈春梅,谢祖彬,朱建国.土壤有机碳激发效应研究进展[J].土壤,2006,38(4):359-365.
作者姓名:陈春梅  谢祖彬  朱建国
作者单位:1. 土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京,210008;中国科学院研究生院,北京,100049
2. 土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京,210008
基金项目:国家自然科学基金;国家重点基础研究发展计划(973计划);中国科学院知识创新工程项目
摘    要:土壤有机C激发效应是加入外源物后土壤有机C周转短期的强烈变化。综合多年的研究结果表明:外源物的加入可能加速土壤有机C的矿化,产生正激发效应;也可能减缓土壤有机C的矿化,产生负激发效应。激发效应的产生受输入外源物的数量和质量、土壤本身的性质等因素影响,其产生机理还需进一步研究。本文综合这些年来利用同位素(13C和14C)示踪技术进行的土壤有机C研究,比较系统地阐述了土壤有机C激发效应产生的驱动因子、机理及其定量化,并提出了有待研究的内容。

关 键 词:激发效应  有机碳  驱动因子  机理  定量化

Advances in Research on Priming Effect of Soil Organic Carbon
CHEN Chun-mei,XIE Zu-bin and ZHU Jian-guo.Advances in Research on Priming Effect of Soil Organic Carbon[J].Soils,2006,38(4):359-365.
Authors:CHEN Chun-mei  XIE Zu-bin and ZHU Jian-guo
Institution:State key laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciencs), Nanjing 210008, China;Graduate Shool of the Chinese Academy of Sciences, Beijing 100049, China,State key laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciencs), Nanjing 210008, China and State key laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciencs), Nanjing 210008, China
Abstract:Priming effect is a strong, short-term change in the turnover of soil organic carbon (SOC) caused by exogenous substrates. Addition of exogenous substrates may accelerate SOC decomposition-a positive priming effect, and also may retard SOC decomposition-a negative priming effect. Priming effects are governed by many factors, such as quantity and quality of the exogenous substrates and the soil properties. In this paper a review is presented to elucidate direct driving factors, mechanisms and quantification of the priming effect by compiling papers using isotope techniques (13C and 14C), and to put forward items to be further studied.
Keywords:Priming effect  SOC  Driving factors  Mechanisms  Quantification
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《土壤》浏览原始摘要信息
点击此处可从《土壤》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号