Blue-green spaces in Zhengzhou's main urban area (1960s-2020s)

This dataset of blue-green spaces in the main urban area of Zhengzhou from the 1960s to the 2020s covers seven periods, including the 1960s, 1970s, 1980s, 1990s, 2000s, 2010s, and 2020s. The spatial extent includes Huiji District, Zhongyuan District, Jinshui District, Erqi District, and Guancheng Hui District. The dataset was constructed based on Keyhole satellite imagery, Landsat series satellite imagery, and Jilin-1 high-resolution remote sensing imagery. Deep learning-based super-resolution reconstruction and RGB colorization were applied, followed by extraction using the Color Index of Vegetation Extraction. The dataset contains the spatial distribution results of blue-green spaces for each period and can effectively characterize the spatio-temporal evolution of blue-green spaces in the main urban area of Zhengzhou over the past 60 years.