气候资源中的热量和水分构成了生产潜力的基础,而太阳辐射又是决定一地冷暖的根本因素。青海高原主要是大面积抬升的地形,高度和地形虽掩盖了纬度对冷暖的影响,但太阳辐射强、光照充足,因此,光资源远比热量和水分资源丰足。可是高原深居内陆,远离海洋,致使雨量稀少、空气干燥、气候干旱。由于水分欠缺,便大大限制了对光、热资源的利用。缺乏水分保证,也使光、热资源不能充分发挥增产潜力。高原水资源不足是热潜开发的严重障碍,尤其是干旱山地,植被稀,水土流失严重,农业生态条件恶劣,又大大降低了对自然降水的有效利用,因此,纯属雨养农业。这里频繁的干旱严重阻碍着产量 The heat and moisture in climate resources form the basis of production potential, and solar radiation is the fundamental determinant of well-being. The Qinghai Plateau is mainly a large area of ​​uplifted terrain, although the height and topography cover the impact of latitude on the warm and cold, but strong solar radiation, adequate light, therefore, light resources than heat and water resources abundant. But the plateau inland, away from the sea, resulting in scarce rainfall, dry air and arid climate. Due to lack of water, it greatly limits the use of light and heat resources. Lack of water guarantee, but also light, heat resources can not give full play to the potential yield increase. The shortage of water resources in the plateau is a serious obstacle to the development of the thermal submersion. Especially in the arid mountainous areas, vegetation is rare, soil erosion is serious, agro-ecological conditions are poor, and the effective use of natural precipitation is greatly reduced. Therefore, it is rain-fed agriculture. Frequent droughts here hampered production