雅鲁藏布江流域是西藏高原农业开发历史最悠久的地区。耕地面积,粮食总产占全西藏一半以上。春麦(春青稞、春小麦)是主要农作物,而且垂直地带分布十分明显,从河谷地区至海拔4750米的山地都能种植。农业生产的发展,急需了解热量条件对春麦栽培的影响。因此,阐明雅鲁藏布江流域气温或土温与春麦种植上限的关系,对开发西藏农业有着十分重要的意义。 The Brahmaputra Basin is the oldest agricultural development in the Tibet Plateau. Cultivated land area accounts for more than half of Tibet’s total grain output. Spring wheat (spring pomfret, spring wheat) is the main crop, and the vertical distribution is very obvious, from the valley to 4750 meters above sea level can be planted. The development of agricultural production, the urgent need to understand the heat conditions on the cultivation of spring wheat. Therefore, to clarify the relationship between temperature or soil temperature in the Brahmaputra basin and the upper limit of spring wheat planting is of great significance to the development of Tibet agriculture.