关键词: 土地资源承载力, 大食物观, 膳食营养, 河北省

Abstract: Food and nutrition security is an important part of food security. To find out the carrying capacity of land resources in Hebei Province based on the broad food concept is very important to ensure regional food security. The carrying capacity of land resources in Hebei Province was estimated based on the dietary nutrition requirements of residents, the spatial differentiation was analyzed by Theil index, and the main influencing factors were analyzed by the geographical detector. The results showed that the land carrying capacity index of the whole province in 2022 showed a spatial distribution of “two areas with high values and one area with a low value”, that was, the east and north were high and the south was low. The overall spatial difference of the land carrying capacity index was large, which mainly came from intra-regional differences. Intra-regional differences were mainly reflected in urbanized areas. From the perspective of load type, the overload area was mainly distributed in Taihang Mountain, Yanshan Mountain, Bashang and urban center, the basic balance area was scattered, and the surplus area was mainly distributed in the southern plain area and the coastal plain area of eastern Hebei Province. The results of the geographic detector showed that the urban-rural income gap was the most important factor affecting the spatial difference of land carrying capacity in the province, and the main influencing factors varied in different subregions.

Key words: carrying capacity of land resources, broad food concept, dietary nutrition, Hebei Province