Data and code for: Lakes have significantly higher CO2 emission rate than reservoirs in China

This repository provides the full data processing pipeline to estimate lake carbon flux across China, combining remote sensing–derived monthly lake surface area, alkalinity (Alk) predictions from a machine learning model, and partial pressure of CO₂ (PCO₂) calculations derived from daily water quality monitoring data.本仓库提供了用于估算中国全域湖泊碳通量的完整数据处理流程，整合了遥感衍生的月度湖泊表面积、基于机器学习模型得到的碱度（Alkalinity, Alk）预测结果，以及由每日水质监测数据计算得到的二氧化碳分压（Partial Pressure of CO₂, PCO₂）。