Traditional modes of transportation in southern villages

(1) The dividing line between the southern region and the northern region is Qinling-Huaihe River; (2) The distribution of boundary A is closest to the 0℃ isotherm of 1.00, that is, the Qinling Mountains and Huaihe River, and the dominant factor is climate; (3) Cultural differences between southern villages and northern villages: the farming system in the south is two or three crops a year, while in the north it is one crop a year or three crops every two years; The traditional mode of transportation in the south is water transport, while in the north it is mainly land transport. Traditional houses in the south are characterized by large roof slope and high walls, while in the north, the roof slope is low and the walls are thick. So the answer is: (1) Qinling; Huaihe River; (2) A; (3) Farming systems in southern villages and northern villages ② ① Traditional modes of transportation ④ ③ Characteristics of traditional houses ⑤ ⑤.