梯田塌地有巨大的抗旱能力陕北米脂地区,一九六五年遭受了历史上罕見的大旱灾。以作物生长期計算,从种到收共約一百六十天都处于干旱状态。特別是阳坡地,干旱更为严重。七寸以下不見墒,百分之七十以上的庄稼被晒枯死。在严重干早的情况下,基本农田却显示了巨大的抗旱作用。水平梯田和垻地的庄稼,不仅沒有被旱死,而 Terraced fields have enormous drought resistance capability. In 1965, it suffered a rare drought in history. Calculated in crop growth period, about 160 days from planting to harvest are in a state of drought. Especially on sunny slopes, the drought is even more serious. Less than seven inches of moisture, more than 70 percent of the crops were sun-dried to death. In the case of severe drought, the basic farmland has shown a huge role in drought control. The terraced rice fields and the landless crops have not only not been drowning yet