JOURNAL OF NATURAL RESOURCES ›› 2018, Vol. 33 ›› Issue (3): 361-371.doi: 10.11849/zrzyxb.20170130

• Resource Utilization and Management •     Next Articles

Main Limiting Factor of the Regional Specialization of Agricultural Land Use in China

WANG Wei-heng1,2, ZHU Hui-yi1   

  1. 1. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-02-21 Revised:2017-04-27 Online:2018-03-20 Published:2018-03-20
  • Supported by:
    National Natural Science Foundation of China, No. 41571096.

Abstract: The regional specialization of agricultural land-use in China lags behind those in developed countries and develops slowly, which makes agricultural products of China lack of international competitiveness. However, there is no convincing conclusion that can explain the reason. In this paper, we examined the controllability and limitation of main grain production in the specialization of agricultural land-use based on the specialization index of Hirschman-Herfindahl (SHHI), the planting area data at national and provincial level during 1991-2013 and at county-level in Hangjiahu area during 2001-2013, combined with the analysis of related policies. The reason why the regional specialization of agricultural land-use in China developed slowly was explored. At present, the regional specialization was controlled by the proportion of main grain acreage (PMGA). The SHHI and PMGA had positively correlation at 5% significant level in both temporal and spatial dimensions at both national level and provincial level. At county-level, in spatial dimensions, SHHI had a significant positive correlation with PMGA; in temporal dimensions, there were 76% of counties whose SHHI had significant positive correlation with PMGA. Furthermore, we found that grain protection policy constrained the withdrawal of grain crops, which compressed the growth of other crops and limited the specialization of agricultural land-use. The results indicated that the protection policy of grain (especially main grain) production is the main limiting factor of agricultural land-use specialization in China at the present stage. Therefore, we suggested changing the concept of “grain security” and optimizing the layout of agriculture.

Key words: agricultural land use, grain production, grain security policies, regional specialization

CLC Number: 

  • F321.1