Ancient times when transportation is not convenient, people are how to transport wood?

The main two ways: 1, the principle of rolling bar, the use of crowbar. Rolling transportation. 2, water transportation, thrown directly into the river, downstream.

This is why in ancient times to repair the imperial tombs, to first repair the artificial river.

Water transport, by the drift of the wood itself, ancient water transport is very developed, the Qing Dynasty Sichuan, the two lakes region of the wood first through the Yangtze River, through Yangzhou into the Grand Canal to the north, the south of the timber is transported through this way, and before, the north itself has a large number of timber resources, such as the Tang dynasty basically rely on the Guanzhong region of the production of wood.

South has not really developed, after the Song began to develop and utilize the South on a large scale, especially in the Southern Song Dynasty (the North was not as now so full of yellow soil, but the large-scale development and wars over the generations has led to the barren North, after all, the past are predatory use)

And to the Ming Dynasty, the North's resources have been developed basically out of net, Ming When the capital of Beijing was built, the timber was mainly transported by the south.