明、清两代贵阳山川梗阻,人民往来不便,商业贸易极不发达;城市的性质,主要还是作为军事防御的城堡和据点,那时的经济还完全是封闭式的小农自给自足的经济。后来随着驿道的逐步开通,统治者实行屯田垦荒,改革 The Ming and Qing dynasties obstructed the Guiyang mountains and rivers, the inconvenience of people’s commu- nity, and the extremely underdevelopment of commerce and trade. The nature of the city was mainly used as a castle and stronghold for military defense. At that time, the economy was still a completely self-sufficient closed economy for smallholders. Later, with the gradual opening of the post road, the rulers practiced farmland reclamation and reform