2006-2015年内蒙古多伦典型草原碳水通量观测数据集  

A dataset of carbon and water fluxes of the typical grasslands in Duolun County,Inner Mongolia during 2006-2015

作　　者：游翠海 王彦兵 陈世苹[1,2] YOU Cuihai;WANG Yanbing;CHEN Shiping(State Key Laboratory of Vegetation and Environmental Change,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,P.R.China;University of Chinese Academy of Sciences,Beijing 100049,P.R.China;School of Ecological and Environmental Sciences,East China Normal University,Shanghai 200241,P.R.China)

机构地区：[1]中国科学院植物研究所,植被与环境变化国家重点实验室,北京100093 [2]中国科学院大学,北京100049 [3]华东师范大学,生态与环境科学学院,上海200241

出　　处：《中国科学数据（中英文网络版）》2023年第2期94-104,共11页China Scientific Data

基　　金：国家自然科学基金(32071565,U22A20559);国家重点基础研发项目(2017YFA0604801)。

摘　　要：草原生态系统是陆地和大气间物质和能量交换的重要生态系统,在全球碳循环中发挥重要作用,但其碳汇大小和方向存在争议。涡度通量观测方法可实现植被和大气间碳、水、能量交换的连续测定。长期的碳水通量观测有助于明确草原生态系统的碳汇功能及其对气候变化的响应。本数据集收集整理了2006–2015年内蒙古多伦温性典型草原生态系统长期涡度通量观测数据,基于ChinaFLUX标准数据处理体系完成30分钟的碳水热通量和常规气象要素数据整编。本数据集观测质量较好,全年数据观测完整性达95%以上,能量平衡闭合比率较高(1.04±0.07)。本数据集为研究温性典型草原生态系统碳水通量的日动态、季节变化及年际变异提供坚实的数据支撑,对评估我国北方草原在区域和全球碳水循环中的作用具有重要意义。Grassland is an important terrestrial ecosystem for the exchange of mass and energy between land and atmosphere,playing an important role in global carbon cycle.However,the direction and size of its carbon sink are still in dispute.The eddy covariance technique can be sued to continuously determine ecosystem-level carbon,water and energy exchanges between vegetation and atmosphere.The long-term observations of carbon and water fluxes can help quantify the carbon sequestration capability of grassland ecosystems and its response to climate change.This dataset consists of two half-hourly data files,including the carbon,water and heat fluxes data file and the meteorological variables data file.All of the flux data were processed according to the flux data processing procedure specified by ChinaFLUX.The observational quality of this dataset is good,with a complete data observation integrity of over 95%throughout the year and a high energy balance ratio(1.04±0.07).This decadal flux dataset from 2006 to 2015 provides a high-quality and continuous long-term eddy flux observation data valuable for the research of diurnal dynamics,seasonal and interannual variations of carbon and water fluxes,which is significant for evaluating the role of China’s temperate typical grasslands in regional and global carbon and water cycles.

关 键 词：涡度相关技术 温性草原 碳通量 蒸散发 能量通量 

分 类 号：S812[农业科学—草业科学]