Prediction of the potential distribution area of Solanum rostratum in northeast China

Solanum rostratum is atype kind of quarantine weed with an extremely strong reproductive capacity, which can be quite harmful when spread over a large area. In this study, geological recordings of Solanum rostratum geological recording and 7 environmental factors were used to predict the potential distribution area and suitable levels of Solanum rostratum in Northeast China, based on the maximum entropy model (MaxEnt). The results indicated that the main determining environmental factors for the potential distribution are the Annual Mean Temperature and Mean Temperature of the Wettest Quarter. The suitable range of the main environmental factors are 7～13 ℃ and 21.9～24.6 ℃, respectively. The highly suitable distribution is mainly located in western Liaoning, southern Liaoning and southeast Inner Mongolia autonomous region, and the overall trend is gradually decreases outward from the center. On the basis of a suitable index, the Chifeng–Linxi–Qiqihar–Zhaodong–Xiuyan–Dandong line is the spread risk boundary for the distributution of the Solanum rostratum distribution. These predictions provide a basis for controlling the spread of Solanum rostratum.