Objective The aims were to identify the agricultural production compliance and environmental quality indicators of new farmland from different sources of reclamation and replanting, and to analyze the main obstacle factors, so as to ensure that the work of balancing the occupation and replenishment of farmland, to realize "occupying and replenishing the best", to promote the protection and enhancement of the quality of regional farmland.

Method A total of 1113 new farmland plots in three districts of Beijing were used to characterize the agricultural production attributes of six types of new farmland from different sources, and the indicators related environmental quality and potential ecological risk were assessed based on classical statistical methods.

Result ① The debris content, topographic slope, soil thickness and field irrigation capacity of all plots in the study area met the standards. The coefficients of variation of soil bulk density and pH were low, and the coefficients of variation of soil organic matter content were high. ② The overall soil pH in the study area was alkaline and higher than that of conventional cropland. Among the different areas, soil bulk density was the highest in Shunyi District and the lowest in Daxing District. Among the different types of in situ land use, the mean value of soil bulk density was the smallest in arable land, garden land and forest land, and the mean value of soil bulk density was the largest in cultivated soil of grassland and public land. Soil organic matter content was relatively low in Daxing and Changping Districts, and higher in Shunyi District.

Conclusion The obstacle factors of new farmland from different sources of reclamation and plowing needed to be categorized to carry out the technical work of upgrading the quality of farmland.