Measurement of cultivated land change and analysis of its spatial characteristics in Luoyang City
DOI:
https://doi.org/10.62051/ajmse.v1n1.03Keywords:
Cultivated land use change, Spatial evolution, Average Nearest Neighbor index, Luoyang CityAbstract
Cultivated land is a crucial foundation for agricultural production and an important pillar for the development of human society. To better coordinate the relationship between economic development and cultivated land protection in the context of urbanization, and to pursue a path of mutual promotion between economic growth and cultivated land conservation, this study takes Luoyang City as the research area. Using data related to cultivated land resources and socio-economic statistics, it analyzes the impact of the new urbanization process on the quantity and spatial distribution of cultivated land resources in Luoyang City from 2005 to 2020. The results show that: (1) The single dynamic degree of cultivated land use was -0.25% in Luoyang City from 2005 to 2020, indicating a declining trend in cultivated land quantity with a relatively slow rate of change. Only during 2005–2010 did cultivated land show an increasing trend, and the dynamic degree of cultivated land area was the highest during this period, representing the fastest change in cultivated land area. (2) Changes in cultivated land resources varied across counties and districts in Luoyang City. The relative change rate of cultivated land in all counties and districts from 2005 to 2020 was greater than 1, indicating that the rate of cultivated land change in each region was faster than that of Luoyang City as a whole. (3) The spatiotemporal change in cultivated land area in Luoyang City exhibited a continuous decreasing trend. From 2005 to 2015, the ANN value was close to 0, indicating that the spatial distribution of cultivated land in Luoyang City was closer to a clustered distribution. From 2015 to 2020, the ANN value was closer to 1, indicating that the spatial distribution of cultivated land during this period was more random compared to the previous three years. This study provides a scientific basis for coordinating the dynamic balance between urban construction and cultivated land protection, and for ensuring regional food security.
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