Wang Xueyan, Zhao Li, Su Mengwei, Li Xiaoqing, Chang Xinhan
School of Land and Resources, Hebei Agricultural University, Baoding, 071000, People's Republic of China.
Research Center for Local Culture And Rural Governance, Hebei Agricultural University, Baoding, 071000, People's Republic of China.
Environ Sci Pollut Res Int. 2023 Jul;30(35):84152-84166. doi: 10.1007/s11356-023-28254-w. Epub 2023 Jun 24.
As an important representation of sustainable land development, land function has become a research hot spot in the land research field. To explore the spatiotemporal evolution pattern and its driving mechanism of land function in China, an evaluation index system of land function was constructed. We adopted the weighted sum method to evaluate the land function and used the dynamic change degree of the land function and the coefficient of variation to analyze the spatiotemporal evolution characteristics of the land function. The driving mechanism of land function evolution was studied using grey relational analysis and multiple stepwise regression. The results showed that (1) from 200 to 2019, the total land function (TLF) increased by 10.41%, initially increasing and then decreasing. The land social function (LSF) and land bearing function (LBF) increased by 42.05% and 17.35%, respectively, while the land productive function (LPF), land cultural leisure function (LCF), and land ecological function (LEF) decreased by 3.64%, 4.25%, and 2.51%, respectively. (2) The spatial distribution of the LPF and LCF decreased from east to west, the distribution law of the LSF spread from the edge to the inside, the LBF showed a distribution state of high in the southeast and low in the northwest, and the spatial change law of the LEF decreased from west to east. (3) The driving factors of land function were the built-up area, urbanization rate, population density, and proportion of education expenditure. This paper provides a reference for improving land functions and for the sustainable utilization of land resources.
土地功能作为土地可持续发展的重要表现形式，已成为土地研究领域的一个研究热点。为探究中国土地功能的时空演变格局及其驱动机制，构建了土地功能评价指标体系。采用加权求和法对土地功能进行评价，并运用土地功能动态变化度和变异系数分析土地功能的时空演变特征。运用灰色关联分析和多元逐步回归研究土地功能演变的驱动机制。结果表明：（1）2000—2019年，土地功能总量（TLF）增长了10.41%，呈先上升后下降趋势。土地社会功能（LSF）和土地承载功能（LBF）分别增长了42.05%和17.35%，而土地生产功能（LPF）、土地文化休闲功能（LCF）和土地生态功能（LEF）分别下降了3.64%、4.25%和2.51%。（2）LPF和LCF的空间分布由东向西递减，LSF的分布规律由边缘向内部扩散，LBF呈东南高西北低的分布状态，LEF的空间变化规律由西向东递减。（3）土地功能的驱动因素为建成区面积、城市化率、人口密度和教育支出占比。本文为提升土地功能及土地资源的可持续利用提供了参考。
