中文摘要：

对内蒙古赤峰地区野生秋子梨资源现状的调查结果表明,野生秋子梨主要分布在克什克腾旗境内东部水分和阳光条件较好的地方。野生秋子梨的分布范围在东经43°03′～43°38′和海拔1 000～1 300 m之间。在835棵野生梨树体中,胸围最大为150 cm,大于100 cm的占4.5%,胸围在30～90 cm之间分布最多。树龄在60～120年之间,自然更新能力较差,全部带刺。调查发现,野生秋子梨生境的改变直接导致其自然更新能力的降低和大龄梨树枝条干枯（难以找到可以扦插的枝条）、营养不良甚至死亡。赤峰地区野生秋子梨资源的保护已迫在眉睫。

英文摘要：

The status of wild Pyrus ussuriensis Maxim resources in Chifeng Area,Inner Mongolia is investigated in this paper.The results show that the main of wild resource distributed in the east of Keshen Keteng,in which water and sunlight conditions are relatively good.Wild Pyrus ussuriensis Maxim distributes in east longitude of 43°03′-43°38′and altitude of 1 000-1 300 m.In 835 wild pear individuals,the chest measurement is biggest to 150 cm,more than 100 cm occupy 4.5%,the chest measurement between 30 cm to 90 cm makes the maximum proportion.The tree age is in 60-120 years,the nature renews ability gets worse,all taking sting.The survey also find that,the wild Pyrus ussuriensis livings change of territory directly cause it naturally renew ability to lower,withered as old tree branch,malnutrition,even death.The protection of wild Pyrus ussuriensis Maxim resource is of the utmost urgency already.