School of Forestry, Jiangxi Agricultural University, Nanchang 330045, China.
Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China.
Int J Environ Res Public Health. 2023 Jan 28;20(3):2330. doi: 10.3390/ijerph20032330.
Land use change has been one of the common problems in the context of urbanization in China. Social economy and land use interact with each other, and it is especially important for human society to adhere to sustainable development, and to deal with the contradictory relationship between the social-economic needs and land use change. The objectives of this study are: (1) Obtain time-series land-use classification data and its spatial distribution in Nanchang City; (2) Identify the characteristics and driving force of spatial-temporal land use changes in Nanchang City from 2000 to 2020; (3) Discuss the relationship between the urban expansion and social economy in Nanchang City. The results show that the spatial distribution of land use in Nanchang City has changed significantly from 2000 to 2020, and the largest area of land-use type in Nanchang City has been cropland. The cropland has continuously declined, and the urban area has increased significantly. A lot of cropland has been transformed into urban areas, and land use degree in Nanchang City has significantly increased. The spatial pattern of land use has greatly changed, and the city spatial pattern has become more aggregated, while the spatial distribution of cropland, forest and grassland has become more fragmented. Moreover, there has been an obvious correlation between social-economic development and the level of land use, and GDP has been the main driver of land use change. The central urban area of Nanchang city has been the main hotspot of land use change.
土地利用变化是中国城市化进程中的常见问题之一。社会经济与土地利用相互作用，人类社会坚持可持续发展，处理好社会经济需求与土地利用变化的矛盾关系尤为重要。本研究的目的是：（1）获取南昌市时间序列土地利用分类数据及其空间分布；（2）识别 2000-2020 年南昌市土地利用时空变化的特征及其驱动力；（3）探讨南昌市城市扩张与社会经济的关系。结果表明，从 2000 年到 2020 年，南昌市土地利用的空间分布发生了显著变化，最大的土地利用类型是耕地。耕地不断减少，城区面积显著增加。大量耕地转化为城区，南昌市土地利用程度显著提高。土地利用的空间格局发生了很大变化，城市空间格局更加集聚，而耕地、林地和草地的空间分布更加破碎。此外，社会经济发展与土地利用水平之间存在明显的相关性，国内生产总值是土地利用变化的主要驱动力。南昌市中心城区一直是土地利用变化的主要热点。
