A Dataset of photosynthetically active radiation reconstruction in China, 2015-2020

Abstract

Photosynthetically active radiation data can be widely used in ecology, agriculture, resources and environment, climatology and other fields，it has important application value in ecosystem productivity assessment, agricultural production layout optimization and food security, atmospheric carbon dioxide (CO2) evolution and its change law, regional CO2 source and sink estimation。However, the long-term continuous observation data of photosynthetically active radiation are few, especially in China。Therefore, accurate large-scale photosynthetically active radiation data will provide scientific data support for relevant research. In this paper,we used data from the China Meteorological Administration and the China Ecosystem Research Network, the total radiation data of national scale long time series were reconstructed based on the "mixed model". Then, combined with the constructed photosynthetically active radiation scheme for different climatic regions estimated by total radiation. Finally, the reconstructed photosynthetically active radiation data with good accuracy and passing test were obtained. The time range of this dataset is 2015-2020.