Beijing - Kowloon line in latitude 40 degrees south, moderate humid climate, the Huang - Huai Plain and Yangtze River midstream, Gan Jiang, Dongjiang basin are fertile agricultural areas.

• 京九线地处北纬40度以南，气候温和湿润，黄淮平原，长江中游，赣江，东江流域等都是富饶的农业区。