Brief introduction of Panlong: Panlong District is one of the jurisdictions of Kunming City. It is named after the Panlong River runs from north to south throughout the whole territory and is the resident of Kunming Municipal Government. Panlong District had ancient human activities as early as 30,000 years ago. As far back as the Neolithic Age, it has become a place where humanity flourishes. In 1928, the municipal office was changed to the municipal government, and the Kunming system was officially established. The resident population of Panlong District is 809,881 (the sixth national census data), with an annual average temperature of 14.9 °C, an extreme maximum temperature of 31.5 °C, and an extreme minimum temperature of -7.8 °C. The annual average precipitation is about 1000.5mm, and the monthly maximum rainfall is 208.3mm.