Respuesta :
Answer:
In order to get grain to his capital city of Beijing more quickly and effectively, Emperor Yang of the Sui sought a solution. In addition, he had to feed the army he had assembled to protect northern China from the Mongols. In order to extend the current canals from Beijing to Hangzhou, he chose to join them together.
How was the Grand Canal in China built?
When the state of WU intended to expand into the heart of China during the Spring-Autumn season, earlier canals had already been constructed. These older canals, which were largely used to connect the Yangtse and Huai rivers, had the twin functions of facilitating trade and moving armies, ultimately helping WU realize its geopolitical goals. Later in the Sui Dynasty, as a result of over-farming and population growth, the Northwestern provinces were unable to independently support the population and the central government that resided there. This forced the central government to expand the canal network in order to supply the food-insufficient north with surplus food from the south. Generally speaking, the network was expanded in two directions. New canals to the northwest connected the Yellow river to Huai, reaching Luoyang, and then continued farther to touch on Wei river, allowing goods to pass directly into Chang'an, the capital of the empire, from the far south. The network finally reached what is now Beijing as it continued to extend through the vast plains of Northern China in a northerly direction. In essence, it was an economic decision to address the empire's internal and external political difficulties.
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