Abstract: 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.
Keywords: carbon cycle; photosynthetic active radiation; eddy covariance; terrestrial ecosystem