Multifunction change of rural housing land in metropolitan suburbs from the perspective of farmer households' land-use behavior

Investigating the multifunction change of rural housing land is important to guide appropriate land use adjustment and rural land planning. This paper develops a multifunction identification method from the perspective of farmer households' land-use behavior, and analyzes the change in function types and patterns based on survey data of 613 typical farmers in Pinggu District. It appears a trend of function specialization and socialization from 2005 to 2018, along with mutual transformation of subfunction space. The living function of rural housing land became the dominant and specialization function of rural housing land, which the intensity continued to strengthen from 66.4 % to 86.3 %, while the production function intensity of rural housing continuously reduced to 12.6 % due to withdrawal of the subclasses. Under the comprehensive influence of human needs and social development, such as leisure agriculture and tourism in suburb of the semi-mountainous area, non-residential function space withdrew and separated from rural housing land, and then socialized within the village. The specialization function inside rural housing land should be integrated into rural land planning; simultaneously, the public space construction should be reinforced with the socialization of the withdrawal function from rural housing land.