Abstract: Based on social ecosystem theory, this study utilizes survey data from 598 adolescents residing in a resettlement area for relocation programs in ST County, Shaanxi Province, and applies hierarchical regression analysis to examine the impact of social supports from family, school, and community on adolescents’ problem behaviors. It’s found that parental care, teacher care, and community residents’ friendliness are significantly and negatively correlated with adolescents’ problem behaviors, indicating that the higher the level of social supports, the lower the incidence of problem behaviors. Among these factors, teacher care exerts the strongest inhibitory effect, followed by parental care, while the effect of residents’ friendliness is relatively weaker. Moreover, a mutual weakening effect is observed between the inhibitory effect of teacher care and residents’ friendliness. The robustness test results are highly consistent with the regression analyses, demonstrating the reliability of the conclusions. The impacts of social supports on adolescents’ problem behaviors are obviously heterogeneous: male adolescents are more susceptible to the effects of teacher and peer care, while female adolescents are more strongly influenced by parental care; junior high school students are more influenced by teacher and parental care than primary school students. Furthermore, residents’ friendliness has a significant negative impact only on non-relocated adolescents. Therefore, it is essential to build a collaborative support network involving family, school, and community, and to implement differentiated intervention strategies tailored to the specific needs of different adolescent groups.

Key words: social support, resettlement area for relocation programs, adolescents, problem behaviors