A Global Meta-Analysis Dataset Comparing Controlled Drainage (CD) and Controlled Drainage with Sub-Irrigation (CDSI) Against Free Drainage (FD)

This dataset compiles 1,788 paired site-year observations derived from 83 publications across 52 sites globally (up to May 2024). It provides a comprehensive examination of the impacts of controlled drainage (CD) and controlled drainage with sub-irrigation (CDSI) compared to conventional free drainage (FD). The data capture various environmental and agronomic outcomes, including subsurface drainage volumes, nitrate and phosphorus losses, crop yields, and greenhouse gas emissions. Accompanying metadata—covering agronomic practices, drainage system designs, soil characteristics, and climate information—enable thorough meta-analysis and secondary research on water management strategies in agriculture.

Please cite the published paper when using the data (DOI: 10.1016/j.agwat.2025.109833).

本数据集共收录全球52个试验点的1788组位点-年份配对观测数据，数据源自83篇已发表文献，收录截止至2024年5月。本数据集全面对比评估了控制性排水（controlled drainage, CD）、带地下灌溉的控制性排水（controlled drainage with sub-irrigation, CDSI）与常规自由排水（conventional free drainage, FD）的应用效果。数据涵盖多项环境与农艺指标，包括地下排水量、硝态氮与磷素流失量、作物产量以及温室气体排放量。配套元数据涵盖农艺管理措施、排水系统设计、土壤特性及气候信息，可支撑农业水管理策略的系统性元分析与二次研究。
使用本数据集时，请引用该发表论文（DOI：10.1016/j.agwat.2025.109833）。