To address these challenges, under the guidance of Prof. SHI WenjiaoTENG Fei and the team developed a new estimation approach that obviates the reliance on field-measured yield data for model training. Based on the Vegetation Photosynthesis Model (VPM) and using Sentinel-2 satellite imagery, meteorological data, and statistical information, they innovatively integrated dynamic observation indices and comprehensive conversion coefficients. This method enabled them to produce the first 10 m resolution yield datasets for maize, rice, and soybean across Northeast China for 2016-2021.