【摘要】 <正> 近年来发现沙棘的花、叶和果实,被多种鸟兽所食用;沙棘灌丛又是鸟兽的良好栖息场所。为了确切评价这一野生植物资源的经济意义和对黄土高原生态平衡的作用,我们开展了一系列的调查工作。一、调查方法1982—1983年,我们选定山西省吕梁地区关帝山庞泉沟自然保护区作为主要调查基地,在春、夏、秋、冬各个不同时期,守候在沙棘灌丛附近,通过望远镜作观察记载,对啄食沙更多还原

【Abstract】 Hippophae rhamnoides is widely distributed in the loess plateau. Its leaves and fruits are used for food by 45 species of birds and 5 species of mammals. In autumn, its ripe fruits can keep on the branches for months. And in winter, under food-lacking circumstances, the fruits can supply food for birds and mammals, especially for a rare bird Crossoptilon mantchuricum. Therefore, Hippophae rhamnoides plays an important role for the ecological balance in the Loess Plateau Region.更多还原