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青藏高原位于东径78°—105°,北纬27°—40°之间的地区,面积约为200万平方公里,平均海拔高度为4000—5000米。青藏高原的存在不仅影响着我国东部地区的天气和气候,而且自身也形成了一个独特的气候区域。高原麦区主要分布在海拔4000米以下的河谷地带即藏南谷地、青海的黄河、湟水河谷及柴达木盆地的灌区。高原不仅是我国小麦种植的上限区,而且是单产的高值区。高
The Qinghai-Tibet Plateau is located in an area with an eastern diameter of 78 ° -105 ° and a latitude of 27 ° -40 ° north with an area of about 2 million square kilometers and an average altitude of 4000-5000 meters. The existence of the Tibetan Plateau not only affects the weather and climate in eastern China, but also forms a unique climate region. Highland wheat areas are mainly distributed in the valley below 4,000 meters above sea level in the southern Tibetan valley, the Yellow River in Qinghai, Qushui River and Qaidam Basin irrigation area. Plateau is not only the upper limit of China’s wheat cultivation, but also the high yield area. high