North-South Difference of Qinling-Huaihe Line

Name Qinling Mountains-North of Huaihe River-South of Huaihe River-Main topographic plateaus, plain plateaus, basins, plains and hills. The average temperature in June is lower than 0℃ and higher than 0℃. Large rivers are sparsely distributed, with weak water storage and drainage capacity and dense artificial rivers. The average annual precipitation for flood control and drought prevention is 400-800 mm, above 800 mm, with large temperature difference of climate type, dry air and extreme weather. In extreme weather, there are few vegetation types, mainly temperate deciduous broad-leaved forest and subtropical evergreen broad-leaved forest. The type of cultivated land is mainly dry land, which is prone to floods and droughts. Artificial water network is densely covered with main food crops: wheat, corn, rice, sugar crops, sugar beet, sugarcane, main oil crops: peanuts, rape, traditional staple food: pasta and rice crops are cooked once a year or twice a year, twice a year to three times a year. Main economic forests: apples, persimmons, red dates, oranges and tea trees. Highway, railway waterway, highway, railway and traditional means of transportation: horse-drawn carriages, ships, traditional houses, small roof slopes, thick walls and high walls. Traditional sports include skating, skiing, swimming and dragon boat racing.