通过对苹果树休眠枝条含水量的比较研究,探讨了黄土高原沟壑区不同地形、不同农艺措施处理对果树枝条受冻害“抽干”程度的影响。结果表明,沟坡地形热量状况最好、果树受冻害程度最轻,台坪次之,塬面受冻害程度最重;生育期灌溉和果园深翻可以明显降低枝条受冻害程度。 By comparing the water content of dormant branches in apple trees, the effects of different topography and different agronomic practices on the degree of “draining dryness” of the branches of fruit trees by freezing injury were discussed. The results showed that the topography of the gully slopes had the best heat status, the fruit trees suffered the lowest degree of frost damage, the second was the platform level and the frost damage level was the highest on the plateau. Irrigation and deep plowing of the orchard could significantly reduce the degree of frost damage.