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柞树(栎属Quercus,L)从地理分布上是属北半球温带的树种,在黑龙江省有两个种,即蒙古柞(Q.mongolica)和檞树(群众俗称大叶柞Q、dentata)。从全省柞树分布情况来看,蒙古柞占绝对优势;从生长情况、干形品质以及病腐的感染率比较,蒙古柞也比大叶柞好。柞林在我省分布东界在抚远一带,西界在大兴安岭东部嫩江流域的各个支流,北界可达黑龙江边北纬53°左右,西至额尔古纳河右岸吉拉林附近,仍有少量分布。垂直分布是随地理部位不同而有所升降,长白山林区海拔高度在600米时可组成纯林,单株混交的柞树可达
The oak tree (Quercus, L) is a species of temperate northern hemisphere geographically. There are two species of Q. mongolica and poplar in the Heilongjiang Province, commonly known as Q. dentata. From the distribution of oak trees in the province, Mongolia oak occupies the absolute superiority; from the growth, dry quality and the infection rate of diseased rot, Mongolia oak is also better than oak. In the province, the oak forest distributes the eastern boundary in the Fuyuan area. The western boundary is in all tributaries of the Nenjiang River in the eastern part of the Daxinganling. The northern boundary reaches around 53 ° north latitude in Heilongjiang Province. In the west, near the Jilaling on the right bank of the Ergun River, A small amount of distribution. Vertical distribution is different with the geographical parts of the rise and fall, Changbai Mountain forest elevation of 600 meters can be composed of pure forest, mixed oak tree reachable