Delayed leaf green-up date is associated with PM2.5 pollution in China

This repository contains the R code and data used for the phenological modeling and analysis in the study "Delayed leaf green-up date is associated with PM₂.₅ pollution in China." The code includes phenology model implementations and statistical analyses, while the dataset comprises the model simulated green-up date outputs. These resources support the investigation of PM₂.₅ pollution's impact on plant phenology and carbon uptake in China.