Radiation and light-use efficiency dataset of typical Chinese ecosystems (2002–2010)

Light is a primary energy source. Its use efficiency reflects the capacity of ecosystem in converting light energy and producing organic matter. Revealing the values of light and its use efficiency in typical ecosystems provides reference for assessing regional light resources and their use efficiency, which is also helpful in assessing the regional capacity of organic matter production and carbon sequestration. Based on ChinaFLUX observations and published literature, we built the radiation and light-use efficiency dataset of typical ecosystems in China from 2002 to 2010. This dataset contains 126 site-year light resource, light-use efficiency, and absorbed light use efficiency observed from 51 ecosystems. In addition, the dataset also contains the biotic and abiotic information such as ecosystem code, observation year, longitude, latitude, altitude, ecosystem type, annual air temperature, annual precipitation, annual CO2 mass concentration, annual mean leaf area index, annual maximum leaf area index. The dataset could provide data base for research on carbon cycle and climate change.

光照是生态系统的核心能源之一，其利用效率反映了生态系统转化光能、合成有机质的能力。揭示典型生态系统的光照及其利用效率特征，可为区域光照资源及其利用效率评估提供参考，同时也有助于评估区域有机质生产与碳固存能力。基于中国通量观测研究网络(ChinaFLUX)的观测数据与已发表文献，我们构建了2002—2010年中国典型生态系统的辐射与光能利用效率数据集。该数据集涵盖了来自51个生态系统的126个站点-年度的光照资源、光能利用效率以及吸收光能利用效率观测数据。此外，该数据集还包含生态系统编码、观测年份、经度、纬度、海拔、生态系统类型、年平均气温、年降水量、年二氧化碳质量浓度、年平均叶面积指数、年最大叶面积指数等生物与非生物信息。该数据集可为碳循环与气候变化相关研究提供数据支撑。