PROGRESS IN GEOGRAPHY ›› 2020, Vol. 39 ›› Issue (12): 1985-1998.doi: 10.18306/dlkxjz.2020.12.003

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Spatiotemporal characteristics and dynamic mechanism of cultivated land use transition in the Beijing-Tianjin-Hebei region

FU Hui(), LIU Yanjun*(), SUN Hongri, ZHOU Guolei   

  1. School of Geographical Sciences, Northeast Normal University, Changchun 130024, China
  • Received:2020-01-20 Revised:2020-05-07 Online:2020-12-28 Published:2021-02-28
  • Contact: LIU Yanjun E-mail:fuh247@nenu.edu.cn;liuyj323@nenu.edu.cn
  • Supported by:
    National Natural Science Foundation of China(41771172);National Natural Science Foundation of China(41001099)

Abstract:

The transition of cultivated land use represents the change trend of cultivated land use form. Taking 157 counties in the Beijing-Tianjin-Hebei region as cases, this study constructed the index system of cultivated land use form from the dual attributes of dominant form and recessive form. The spatial and temporal characteristics of change of cultivated land use form were analyzed by the methods of cold/hot spot analysis and spatial variation functions. On this basis, the driving mechanism of cultivated land use transition is quantitatively analyzed by the spatial error model (SEM). The results show that: 1) Cultivated land use form index values in the Beijing-Tianjin-Hebei region is high in the southeast and low in the northwest, which is consistent with the terrain distribution pattern in the region. Due to the development of characteristic agriculture on the Bashang Plateau, an independent high-value area was formed. 2) The spatial differentiation of cultivated land use form index in the Beijing-Tianjin-Hebei region shows a trend of gradual reduction. The distribution of significant hot spots and significant cold spots is relatively stable and the area continues to shrink, which indicates that the transition of cultivated land use is relatively steady. Specifically, the dominant morphological value generally increases first and then decreases, while the recessive morphological value increases, demonstrating that the cultivated land in the Beijing-Tianjin-Hebei region is undergoing spatial contraction and functional optimization transitions. 3) Elevation is the main natural environmental factor that affects the spatial characteristics of cultivated land utilization, while the economic and urban development factors such as the proportion of secondary and tertiary industries, average fixed asset investment, and urbanization rate are the leading factors driving the transition of cultivated land in the Beijing-Tianjin-Hebei region from 1990 to 2015. However, there are differences in the dynamic mechanism of cultivated land use transition in different time periods and different county units, and the intensity of each driving factor is also different.

Key words: cultivated land use transition, cultivated land use form, spatial transition, functional transition, Beijing-Tianjin-Hebei region