Acta Geographica Sinica ›› 2022, Vol. 77 ›› Issue (7): 1662-1680.doi: 10.11821/dlxb202207007

• Black Soil Conservation and Utilization • Previous Articles     Next Articles

Optimal regulation of spatial planning in the context of black soil preservation and food security in Qiqihar

FU Jingying1,2,3(), GAO Qiang1,2, JIANG Dong1,2,4, LIN Gang1,2()   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    2. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
    3. Key Laboratory of Coupling Processes and Effects of Natural Resource Elements, Ministry of Natural Resources, Beijing 100055, China
    4. Key Laboratory of Carrying Capacity Assessment for Resource and Environment, Ministry of Natural Resources, Beijing 100812, China
  • Received:2021-10-02 Revised:2022-06-28 Online:2022-07-25 Published:2022-09-13
  • Contact: LIN Gang;
  • Supported by:
    Strategic Priority Research Program of the Chinese Academy of Sciences(XDA28060400);Youth Innovation Promotion Association of the Chinese Academy of Sciences(2018068)


In China, the national spatial planning system is built largely upon prefectural plans, a critical part of which in many prefecture-level cities would be agricultural planning. When we develop such plans for the black soil regions in Northeast China, much effort is needed to guarantee both the black soil conservation and food security, given the rarity and importance of the black soil to agricultural use. In this research, we took Qiqihar as a case to establish an evaluation index system of land space function in the black soil areas that integrated grid-scale and administrative regional-scale. We analyzed the spatio-temporal evolution features of the production-living-ecological space (PLES) in the study area and evaluated their coupling coordination. Based on this analysis, we put forward an optimal strategy for spatial planning regulation to meet the requirement of the diversified regional development and social demands in Qiqihar in the context of prioritizing black soil preservation and food security. The main conclusions can be drawn as follows: regarding the production-life-ecology function, the mildly imbalanced and barely coordinated areas increased from 2010 to 2018, when the production and living space grew to a certain extent. The low coordination of PLES, the regionally varied conflict between different functional spaces, and the potential risks of unsustainable development of black soil resources jointly constituted the conflict arising from its spatial planning. Eventually, we constructed a configuration model for optimizing spatial planning under the constraint of conflict between PLES on multiple scales. It is our suggestion that the enhancement of functional spatial planning at the prefecture level should drive the priority on which the national food security is based, by which the black soil preservation is oriented, and on which the allocation of "human-water-land" resources depends. To achieve such enhancement with the advantages of our prosperous industry, we should wisely channel the advantages of particular regions toward better development, promote the accelerated development of the critical cities and towns, improve the utilization efficiency of black soil resources, and encourage effective land use of towns in harmony with that of counties.

Key words: production-living-ecological function, suitability evaluation, sustainable evaluation, multi-scale integration, scenario simulation