The 500-m irrigated cropland maps in China during 2000-2019 based on a synergy mapping method

we produced annual 500-m irrigated cropland maps across China for 2000-2019, using a two-step strategy that integrated statistics, remote sensing, and existing irrigation products into a hybrid irrigation dataset. The resultant maps delineate the spatiotemporal pattern of irrigated croplands and could contribute to sustainable water use and agricultural development.