秦汉时期关中地区的土壤、气候、水分适于水稻作物生产,当时的稻作生产分布在渭河平原靠近河流的河漫滩、低阶地和东部地区地下水埋藏较浅的盐碱地。 During the Qin and Han Dynasties, the soil, climate and moisture in the Guanzhong area were suitable for rice crop production. At that time, the rice production was distributed in the floodplain near the rivers in the Weihe River plain, and the salinized land where the groundwater buried shallowly in the eastern region and the eastern region.