2007–2013年华北平原典型灌溉农田生态系统日通量数据集——以栾城站为例

Daily fluxes dataset of the typical irrigated agro-ecosystem in the North China Plain:A Case Study of Luancheng Station(2007–2013)

基于微气象学原理的涡度相关技术已成为陆地生态系统与大气间CO2和水热通量交换的标准观测手段之一。本数据集为中国科学院栾城农业生态系统试验站自涡度相关系统架设完成至2013年积累的通量数据,时间跨度从2007年10月至2013年9月,覆盖6个连续作物年,数据项包含蒸散量(ET)、降雨量(P)、净辐射(Rn)、感热通量(H)和二氧化碳净交换量(NEE)。观测样地为冬小麦–夏玉米一年两熟轮作制农田,属于华北平原典型的潮褐土高产农业生态类型,具有较强的代表性。本数据集的联网观测、质量控制和处理存储过程均严格遵守中国陆地生态系统通量观测研究网络(ChinaFLUX)数据管理技术体系,数据可靠性高,可为华北地区典型农田的水平衡、适水种植制度调整、农田生态系统碳水循环过程以及作物模型模拟等相关研究提供坚实的数据支撑。

The micrometeorology-based Eddy Covariance System(EC)has become one of the standard methods for observing the exchange of CO2 and water heat flux between terrestrial ecosystems and the atmosphere.The dataset includes all the fluxes data accumulated in Luancheng Agro-ecosystem Experimental Station of the Chinese Academy of Sciences from the EC System,spanning from October,2007 to September,2013 and extending 6 consecutive years of crop growth.And the fluxes consist of evapotranspiration(ET),precipitation(P),net radiation(Rn),sensible heat Flux(Hs)and net ecosystem exchange of CO2(NEE).The sampling observation object is winter wheat-summer maize rotation cropping system,highly typical of the high-yield agro-eco system of meadow cinnamon soil in the North China Plain(NCP).The network observation,quality control and storage process of this dataset strictly abide by ChinaFLUX data management technology system to make sure data reliability.The EC dataset can provide solid data support for the study of the water balance,the adjustment of the water-adjusted cropping system,the agro-ecosystem carbon-water coupling cycles and crop growth model simulation in the typical crop field of the North China Plain.