&This dataset calculates the proportion of construction land within 1km grid cells based on 30-meter resolution raster data from national land surveys and land change surveys. Utilizing a self-developed raster percentage calculation tool, it generates 1km resolution raster data aligned with the standard kilometer grid framework. The original data source is national land (change) survey data, characterized by high accuracy and continuous update capability, offering enhanced potential for scientific research and applications. The output adopts a 1km grid raster format. The dataset employs the CGCS2000 coordinate system with Albers conic equal-area projection (standard parallels: 25°N, 47°N; central meridian: 105°E).
&The data is provided in both TIF and Excel formats.
Temporal Coverage
2019-2024 (customizable upon request)
Data Sample
Update Frequency
Annual