1. dependent of sampling seasons, soil characteristics, topographic/climate conditions of soil sites and chemical properties of SVBPs. Two SEM models, Model I (winter) and Model II (summer), have been developed to reveal the distribution patterns of SVBPs in soils over season changes, indicating sink-source switches of soils for the 12 SVBPS from winter to summer. The sink-source switches of soils are usually dependent of chemical properties of SVBPs to higher extents than soil characteristics and topographic/climate conditions of soil sites, based on a sum of direct and/or indirect effects of these parameters. The importance of parameters for the sink of soils (in winter) decreases in the order of chemical properties of SVBPs > topographic conditions > climate conditions > soil characteristics. However, for the source of soils (in summer), chemical properties of SVBPs are of high importance, followed by soil characteristics, climate conditions and topographic conditions. This study indicates that both SEM models may provide new insights into the spatiotemporal patterns of SVBPs in soils in mid-latitude regions. In contrast to banned pesticides, currently used pesticides (CUPs) undertake complex environmental processes in soils, associated with their impulsive inputs. Developing SEM models to reveal the spatio-temporal patterns of CUPs in soils are highly desirable. Credit author statement Qian Li, Writing -Original Draft, Methodology, Software, Validation, Formal analysis, Investigation, Data Curation, Visualization. Lin Cai, nvestigation, Data Curation;Conclusions Twelve chemically diverse SVBPs exhibit different distribution patterns in midlatitude soils
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