2006–2015年内蒙古多伦典型草原碳水通量观测数据集

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 ecosystems, which serve as critical ecosystems for material and energy exchange between terrestrial land and the atmosphere, play a pivotal role in the global carbon cycle, yet the magnitude and direction of their carbon sink remain controversial. Eddy covariance flux observation enables continuous measurements of carbon, water and energy exchanges between vegetation and the atmosphere. Long-term observations of carbon and water fluxes help clarify the carbon sink function of grassland ecosystems and their responses to climate change. This dataset collects and organizes long-term eddy covariance flux observation data from the temperate typical grassland ecosystem in Duolun, Inner Mongolia, spanning the years 2006–2015. The 30-minute datasets of carbon, water and heat fluxes as well as conventional meteorological elements have been compiled based on the standard data processing system of ChinaFLUX. This dataset has good observation quality: the annual data observation integrity rate exceeds 95%, and the energy balance closure ratio is relatively high (1.04 ± 0.07). This dataset provides solid data support for studying the diurnal dynamics, seasonal variations and interannual variability of carbon and water fluxes in temperate typical grassland ecosystems, and is of great significance for evaluating the role of northern China's grasslands in regional and global carbon and water cycles.

搜集汇总

背景与挑战

背景概述

该数据集包含2006–2015年内蒙古多伦温性典型草原生态系统的长期涡度通量观测数据，基于ChinaFLUX标准数据处理体系整编，提供了30分钟的碳水热通量和常规气象要素数据。数据集观测质量高，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），为研究草原生态系统碳水通量的动态变化及其对气候变化的响应提供了重要数据支撑。