2020-2022年固城站农田生态系统碳水通量观测数据集

河北固城农业气象国家野外科学观测研究站（固城站）是科技部批准的国家野外科学观测研究站之一，地处华北平原北部灌溉高产农业区，生态类型为典型的华北冬小麦–夏玉米一年两熟制农田生态系统。固城站基于涡度相关技术开展了农田生态系统碳水通量的长期连续观测。本数据集收集整理了2020 – 2022年固城站最新的碳水通量综合观测资料，按照中国通量观测研究网络（ChinaFlux）的通量数据质量控制与处理技术体系要求，进行数据质量控制与处理，形成标准化的碳水通量和辅助气象环境要素数据集，可用于农田生态系统碳收支评估、水资源利用和农业防灾减灾。
本数据集包括通量数据和气象数据2个数据子集，每个子集均包括30 min、日、月和年4种时间尺度的数据。其中：通量数据产品包含生态系统净碳交换（NEE）、生态系统呼吸（Reco）、生态系统光合（GEE）、感热通量（Hs）、潜热通量（LE）等观测指标；气象数据产品包括空气温湿度、风速、风向、太阳辐射、光合有效辐射、土壤温度、土壤水分以及降雨量等观测指标。
本数据集的详细说明信息可访问 http://csdata.org/p/838/ 了解。

Hebei Gucheng Agrometeorological National Field Scientific Observation and Research Station (Gucheng Station) is one of the national field scientific observation and research stations approved by the Ministry of Science and Technology of China. It is located in the irrigated high-yield agricultural region of the northern North China Plain, and features a typical winter wheat-summer maize double-cropping farmland ecosystem. The Gucheng Station has conducted long-term continuous observations of carbon and water fluxes in farmland ecosystems via the eddy covariance technique.

This dataset compiles the latest comprehensive observation data of carbon and water fluxes collected at the Gucheng Station from 2020 to 2022. Following the data quality control and processing framework specified by the China Flux Observation and Research Network (ChinaFLUX), the dataset has undergone standardized quality control and processing, yielding a standardized dataset of carbon and water fluxes and auxiliary meteorological and environmental variables. This dataset can be used for farmland ecosystem carbon budget assessment, water resource utilization, and agricultural disaster prevention and mitigation.

This dataset includes two data subsets: flux data and meteorological data. Each subset contains data at four temporal scales: 30 minutes, daily, monthly, and annual. Specifically, the flux data products cover observation indices such as net ecosystem exchange (NEE), ecosystem respiration (Reco), ecosystem photosynthesis (GEE), sensible heat flux (Hs), and latent heat flux (LE). The meteorological data products include observation indices including air temperature and humidity, wind speed, wind direction, solar radiation, photosynthetically active radiation, soil temperature, soil moisture, and rainfall.

Detailed descriptive information of this dataset is available at http://csdata.org/p/838/.

搜集汇总

背景与挑战

背景概述

本数据集为2020-2022年河北固城站农田生态系统的碳水通量观测数据，基于涡度相关技术采集，覆盖典型的华北冬小麦-夏玉米一年两熟制农田。数据集包含通量和气象两个子集，提供多时间尺度（如30分钟、日、月、年）的标准化数据，如净碳交换、感热通量、土壤温湿度等，适用于农田碳收支评估和水资源利用研究。