Study on Spatial and Temporal Characteristics of Construction Land Expansion in Hohhot City Center, 1992-2022

DOI: https://doi.org/10.62517/jbdc.202301408

Author(s)

Zijian Wang, Xiuqing Zhao*

Affiliation(s)

School of Geographical Sciences, Inner Mongolia Normal University, Hohhot, Inner Mongolia, China *Corresponding Author.

Abstract

Based on CLCD LULC data, this paper uses the ArcGIS 10.8 platform to analyze spatial data and discusses the expansion rate, expansion intensity, expansion direction, expansion type, and land use structure changes of construction land in Hohhot. The results show that the construction land area of Hohhot increased from 103.02 square kilometers in 1992 to 343.41 square kilometers in 2022, with an average annual expansion rate of 7.75 square kilometers and an expansion intensity index of 7.53. The city's expansion shows a staged character, with 2002 to 2012 as the period of rapid expansion. The direction of expansion is mainly concentrated in the northeast, southeast, east, and southwest directions, which is closely related to the city's economic development, natural conditions, and planning control. In terms of expansion types, infill expansion has dominated from 1992 to 2002, while marginal expansion has dominated from 2002 to 2012 and from 2012 to 2022. The land use structure has changed significantly, with a significant decrease in the area of arable land and grassland, a continuous increase in the area of construction land, and a slight increase in the area of forested land. During the 30 years, 242.51 square kilometers of land of various types have been converted into construction land, with arable land being the most converted, accounting for 71.51% of the total amount of converted land. The study concludes that urban land expansion in Hohhot is characterized by obvious spatial and temporal differences and phases, and strict land management methods need to be implemented to ensure the rationality and sustainability of land use. At the same time, arable land and the ecological environment damaged by urban expansion should be protected and restored through ecological compensation mechanisms.

Keywords

Urban Land Expansion; Spatial and Temporal Characteristics; Expansion Pattern; Hohhot City

References

[1] Chen Mingxing, Lu Da Dao, Zhang Hua. Comprehensive Evaluation and the Driving Factors of China's Urbanization. Acta Geographica Sinica, 2009, 64(04):387-398. [2] Gao Jinlong, Bao Jingwei, Liu Yansui et al. Regional disparity and the influencing factors of land urbanization in China at thecounty level, 2000-2015. Acta Geographica Sinica, 2018, 73(12):2329-2344. [3] Chen Mingxing. Research progress and scientific issues in the field of urbanization. Geographical Research, 2015, 34(04): 614-630. [4] Wang Lihong. Study on the Process, Model and Driving Force of Oasis Urban Space Expansion-Taking Shihezi City of Manasi River Basin as an Example. Shihezi: Shihezi University, 2019: 17-21. [5] Han Ruidan. Port City Expansion and its Ecological-environmental Effects. Taian: Shandong Agricultural University, 2017: 3-5. [6] Duan Susu, Zheng Jianghua, Yu Danlin, et al. Study on the characteristics of the typical oasis city expansion of the “Belt and Road" ——taking Urumqi as an example. Science of Surveying and Mapping, 2020, 45(8): 188-198 [7] Tan Ronghui, Liu Yaolin, Liu Yanfang, et al. A literature review of urban growth boundary: Theory, modeling, and effectiveness evaluation. Progress in Geography, 2020, 39(2): 327-338. [8] Sun Zexiang, Liu Zhifeng, He Chunyang et al. Impacts of Urban Expansion on Ecosystem Services in the Drylands of Northern China: A Case Study in the Hohhot-Baotou-Ordos Urban Agglomeration Region. Journal of Natural Resources, 2017, 32 (10): 1691-1704. [9] Dong Mei, Xi Fengjiang, Zhang Cheng, Dong Yunlei, SUN Zhengting. Remote sensing dynamic monitoring of urban sprawl in Hohhot region. Inner Mongolia Science Technology & Economy, 2015, (16): 85-86. [10] Yang Sunshine, Chen Jianbo. Research on urban expansion of Hohhot based on RS and GIS. Journal of Jingchu University of Technology, 2017, 32 (02): 57-61. [11] Zhen Jianghong, Feng Yanwei, Feng Yi. Research on the urban land expansion and its driving factors in Hohhot. Journal of Inner Mongolia Agricultural University (Natural Science Edition), 2020, 41 (06): 31-39. DOI:10.16853/j.cnki.1009-3575.2020.06.007 [12] Zhen Jianghong. Effects of Urban Land Expansion on Ecological Security-Take Inner Mongolia Autonomous Region Hohhot City as an example. Journal of Inner Mongolia Agricultural University (Natural Science Edition), 2018, 39 (03): 52-59. DOI:10.16853/j.cnki.1009-3575.2018.03.007 [13] Yang, J. and Huang, X.: The 30 m annual land cover dataset and its dynamics in China from 1990 to 2019, Earth Syst. Sci. Data, 13, 3907-3925. https://doi.org/10.5194/essd-13-3907-2021, 2021. [14] Yin Huihui, Wu Zhaopeng. Spatiotemporal changes of urban construction land expansion in oasis in arid region. Ecological Science, 2023, 42(5): 231-240. [15] Liu Xiaoping, Li Xia, Chen Yinin, et al. A New Landscape Index for Quantifying Urban Expansion using Multi-temporal Remotely Sensed Data. Landscape Ecology, 2010, 25: 671-682. [16] Zhao Yanru, Zou Zili, Zhang Xiaoping, et al. The relationship analysis of urban expansion types and changes in ecological landscape types based on LEl and MSPA in the city of Nanchang. Journal of Natural Resources, 2019, 34(4): 732-744. [17] Qian Min, Pu Lijie, Zhang Jing. Urban Spatial Morphology Evolution in Suzhou-Wuxi-Changzhou Region Based on Improved Landscape Expansion Index. Scientia Geographica Sinica, 2015, 35(3): 314-321