Abstract. The land of the conterminous United States (CONUS) has
been transformed dramatically by humans over the last four centuries through
land clearing, agricultural expansion and intensification, and urban sprawl.
High-resolution geospatial data on long-term historical changes in land use
and land cover (LULC) across the CONUS are essential for predictive
understanding of natural–human interactions and land-based climate
solutions for the United States. A few efforts have reconstructed historical
changes in cropland and urban extent in the United States since the
mid-19th century. However, the long-term trajectories of multiple LULC
types with high spatial and temporal resolutions since the colonial era
(early 17th century) in the United States are not available yet. By
integrating multi-source data, such as high-resolution remote sensing
image-based LULC data, model-based LULC products, and historical census
data, we reconstructed the history of land use and land cover for the
conterminous United States (HISLAND-US) at an annual timescale and 1 km × 1 km spatial resolution in the past 390 years (1630–2020). The results show
widespread expansion of cropland and urban land associated with rapid loss
of natural vegetation. Croplands are mainly converted from forest, shrub,
and grassland, especially in the Great Plains and North Central regions.
Forest planting and regeneration accelerated the forest recovery in the
Northeast and Southeast since the 1920s. The geospatial and long-term
historical LULC data from this study provide critical information for
assessing the LULC impacts on regional climate, hydrology, and
biogeochemical cycles as well as achieving sustainable use of land in the
nation. The datasets are available at https://doi.org/10.5281/zenodo.7055086 (Li et al., 2022).