摘要
草地土壤有机碳是全球碳循环的重要组成部分,其储量的高低与大气CO2浓度密切相关。笔者综述了近几年有关草地土壤有机碳储量影响因素研究进展,主要介绍了气候条件,草地土壤理化性质以及人为干扰等3方面对草地土壤有机碳储量的影响,阐明了研究影响草地土壤有机碳储量因素的重要意义,为研究如何增加草地土壤有机碳储量提供参考,以有效应对全球气候变化。
Grassland soil organic carbon (SOC) is an important part of global carbon cycle, and its storage is closely related to the concentration of atmosphere carbon dioxide (CO2) content. The author reviewed the research progress of influencing factors of grassland soil organic carbon storage in recent years, including climate conditions, grassland soil physical and chemical properties and human management practices. The author also emphasized the research importance of influencing factors of grassland soil organic carbon storage and the results could provide reference to increase grassland soil organic carbon storage to cope with the globalcli mate change.
出处
《中国农学通报》
2015年第23期153-157,共5页
Chinese Agricultural Science Bulletin
基金
国家自然科学基金面上项目"黄土高原苜蓿碳储量年际变化及固碳机制的研究"(31372368)
公益性行业(农业)科研专项"墨竹工卡社区天然草地保护与合理利用技术研究与示范"(201203006)
"十二五"农村领域国家科技计划课题"甘南高寒草原牧区"生产生态生活"保障技术及适应性管理研究"(2012BAD13B07)
中国农业科学院科科技新工程项目"寒生
旱生灌草新品种选育"(CAAS-ASTIP-2014-LIHPS-08)
关键词
土壤有机碳
草地
放牧
影响因素
soil organic carbon
grassland
grazing
influencing factor