青海东部是指该省日月山以东地区,居黄土高原西缘。雨量300—450毫米,蒸发量1400—2400毫米,农业区海拔高度1700—3200米,年均温5±3℃,属高原气候型的干旱半干旱区。本区辖13个县(市),人口、耕地面积、产量均占全省2/3强,灌溉面积占全省3/4强,是青海省农业的精华所在,也是政治、经济、文化中心地区。 The eastern part of Qinghai refers to the area east of the Riyue Mountain and the western margin of the Loess Plateau. Rainfall 300-450 mm, evaporation 1400-2400 mm, agricultural area 1700-3200 meters above sea level, the average annual temperature of 5 ± 3 ℃, is a plateau climate arid and semi-arid areas. The district has 13 counties (cities) under its jurisdiction. Its population, cultivated land area and output both account for 2/3 of the province’s total irrigated area, accounting for 3/4 of the province’s irrigated area. It is also the essence of agriculture in Qinghai Province and also the center of politics, economy and culture area.