项目名称: 青海湖高寒湿地生态系统CO2、水汽和热通量耦合及通量组分研究
项目编号: No.31260130
项目类型: 地区科学基金项目
立项/批准年度: 2013
项目学科: 生物科学
项目作者: 曹生奎
作者单位: 青海师范大学
项目金额: 50万元
中文摘要: 以青海湖高寒湿地生态系统为研究对象,以青藏高原环境与资源教育部重点实验室为平台,以涡度相关技术和稳定同位素技术为手段,采用野外定位试验和室内分析相结合的方法,研究青海湖高寒湿地生态系统CO2、水汽和热通量的动态耦合及通量组分区分,弄清青海湖高寒湿地土壤-植被-大气碳通量特征,明确青海湖高寒湿地生态系统CO2、水汽和热通量的变化规律,阐明青海湖高寒湿地生态系统CO2和水汽通量对环境条件变化的内在响应机制,揭示青海湖高寒湿地生态系统CO2、水汽和热通量耦合变化的驱动机制,为青藏高原高寒湿地生态系统碳水热循环研究提供理论依据。
中文关键词: 生态系统碳水热通量;生态系统通量组分;耦合;高寒湿地生态系统;青海湖
英文摘要: Taking the alpine wetland ecosystem of Qinghai Lake as the research object, the Ministry of Education Key Laboratory of the Qinghai-Tibet Plateau Environment and Resources as a platform, this project studies the dynamic coupling of the alpine wetland system CO2, water vapor and heat fulxes and partitioning of their components by means of the eddy correlation technique and stable isotope one, and adopting the methods of the field positioning experiment and laboratory analysis. It aims to figure out the characteristics of the alpine wetland soil-plant-atmosphere continuum carbon flux in the Qinghai Lake,make clear the changing laws of the alpine wetland ecosystem CO2, water vapor and heat fluxes, clarify the intrinsic response of the alpine wetland ecosystem CO2 and water vapor fluxes to changing environmental conditions, and reveal the driving mechanism of coupling variations of the alpine wetland ecosystem CO2, water vapor and heat fluxes. Those results will provide the theoretical basis for the alpine wetland ecosystem carbon, water and heat cycles in the Qing-Tibet Plateau.
英文关键词: Ecosystem carbon-water-heat fluxes;Components of ecosystem fluxes;Coupling;Alpine wetland ecosystem;Qinghai Lake