【摘要】 为了进一步了解樱桃园鸟害发生的特点和规律,选取了北京海淀区西北部的两处樱桃园,采用样线和样点结合的方法进行了调查,对调查结果和危害特点进行了总结。危害樱桃园的鸟类主要是喜鹊、麻雀和灰喜鹊。危害程度依果园地形和果实特点等的差异而不同。更多还原

【Abstract】 To be more awared of the features and discipline of bird damage to the cherry orchards,we chosed two orchards at the northwest of Haidian district and made some investigation and conclusions.The mainly harmful birds were Pica pica,Azure-winged Magpie and sparrow.更多还原