一绪论陕西关中地区,自虞夏之贡,以为上田,有膏壤沃野,横垣千里之誉。其地被山带河,四塞环绕。境内黄土疏松肥沃,宜于农耕,民居之则有垦殖稼穑之利;泾、渭、洛挽毂其间,河沟纵横, An introduction Shaanxi Guanzhong area, since the tribute of Yu Xia, that Ueda, there is the ointment fertile ground, the reputation of thousands of miles across the fence. Its mountain river, surrounded by four plugs. Loess loosening within the territory, should be suitable for farming, dwelling houses are cultivated crop rip Lee; Jing, Wei, Luo pull the hub during the vertical and horizontal gully,