兰州市"两抢一盗"犯罪空间分布及影响因素分析OACSTPCD

We explored the spatio-temporal differences and influence factors of"two robberies and one theft"crimes in the central urban area of Lanzhou based on the combination of independent and interactive factors.The conclusions show that①the crime cases of"two robberies and one theft"in the study area mainly occur on the south bank of the Yellow River,showing a pattern of multiple high incidence centers and a grad-ual decrease from multiple centers to the outer ring.②Regardless of day and night,commerce is the main influence factor affecting crime,and the interaction between any two influence factors shows a two-factor enhancement,and the two-factor interaction can increase the explanatory power of crime.At the same time,the explanatory power of two interactions between commercial factors and any environmental factors are ranked at the top of all interactions,and the factor not only has a great influence on crime itself,but also interacts strongly with environmental fac-tors,which is an important catalyst for the occurrence of crime.