Abstract:

Based on the land use data of Shaanxi Province in the year of 1990, 2000, 2010 and 2020, this study analyzed the process of production-living-ecological spaces transformation and its terrain gradient effects by using methods such as land use change map, land transfer matrix, terrain position, and distribution index, which is of great significance for the optimization of regional land space, land resources management, and cultivated land protection. The results showed that (1) Production and living land in Shaanxi Province were mainly distributed in the Guanzhong Region, while ecological land was distributed primarily in the Northern Shaanxi and Southern Shaanxi Mountainous Regions. (2) From 1990 to 2020, the different land types transformed significantly, with a net reduction in agricultural production and other ecological lands and a net increase in others. The intensity of changes showed a spatial distribution pattern of Northern Shaanxi>Guanzhong>Southern Shaanxi Mountainous Regions. (3) With the elevation of terrain level, the dominant land use type gradually transitioned from agricultural production land to grassland and forest ecological land. The proportion of agricultural and industrial production, urban and rural living, and water ecological lands gradually declined, the proportion of forest ecological land slowly increased, while the proportion of grassland and other ecological land first enhanced and then subsided.

Key words: production-living-ecological spaces, land use transformation, terrain gradient effects, Shaanxi Province