2004-2010年上海崇明东滩湿地生态系统CO_(2)通量数据集

A dataset of carbon dioxide flux from Chongming Dongtan Wetland of Shanghai during 2004-2010

作为微气象学的经典方法之一,涡度相关技术已成为观测陆地生态系统与大气间CO_(2)、水热通量交换的主要手段。本数据集为上海长江河口湿地生态系统国家野外科学观测研究站在上海崇明东滩湿地于2004年9月至2010年12月期间观测累积的通量数据,时间分辨率为半小时,数据项包括气温(T_air)、相对湿度(RH)、土温(T_soil)、光合有效辐射(PAR)、总辐射(Solar)、净辐射(Rn)、降雨量(Precip)、感热通量(Hs)、潜热通量(LE)和二氧化碳净交换量(NEECO_(2))等。本研究观测的生态系统为典型亚热带滨海盐沼类型,优势植物为芦苇和互花米草。本数据集的观测系统架设、设备维护和数据质量控制及处理等均按照FLUXNET规范,数据可靠性高,可为中国滨海盐沼的碳收支、蓝碳估算及生物入侵影响评估等相关研究提供扎实的数据支持。

As one of the standard methods of micrometeorology,eddy covariance technology has become the primary tool for monitoring the exchange of carbon dioxide,water and heat flux between terrestrial ecosystems and the atmosphere.This dataset includes the flux data accumulated by the National Observations and Research Station for Wetland Ecosystems in the Yangtze Estuary,collected in Dongtan Wetland on Chongming Island,Shanghai from September 2004 to December 2010,with a time resolution of half hour,and the data items cover air temperature(T_air),relative humidity(RH),soil temperature(T_soil),photosynthetically active radiation(PAR),solar radiation(Solar),net radiation(Rn),rainfall(Precip),sensible heat flux(Hs),latent heat flux(LE) and net carbon dioxide exchange(NEECO_(2)),etc.The ecosystem observed in this study is typical of subtropical coastal salt marshes,predominantly inhabited by such plants as Phragmites australis and Spartina alterniflora.The observation system setup,equipment maintenance,data processing and quality control follows FLUXNET recommended protocols,ensuring high data reliability.The dataset can provide solid data support for the carbon budget,blue carbon estimation and biological invasion impact assessment of China's coastal salt marshes.