辽宁东部的主要植被类型及其分布

 辽宁东部位于铁岭一营口一线以东地区。北部为山地，属于长白植物区系区。南部为辽东半岛丘陵，属于华北植物区系区，并具有一些耐寒性的亚热带植物。红松(Pinus koraiensis)、沙松(Abies holophylla)—阔叶混交林和油松 (Pinus tabulaeformis)、赤松(P.densiflora)、落叶阔叶林是辽宁东部的地带性植被。但是，目前次生的蒙古栎(Quercus mongolica)林和各类灌丛分布很广。以开原一南杂木一青城子一青椅山线为界把辽东分为两个植被地带：1)北部为温带针叶阔叶混交林地带；2)南部为暖温带落叶阔叶林地带。在暖温带落叶阔叶林地带内，熊岳一青椅山线的东南部为亦松栎林亚地带，西北部为油松栎林亚地带。

The Main Vegetation Types and Their Distributions in the Eastern Part of Liaoning Province

The eastern part of Liaoning Province lies east of Tieling-Yingkou line. Its north is a mountainous area, belonging to the Changbai flora region. Its south is a hilly land of the Liaotung peninsula, belonging to the Huabei flora region and having some cold resistant subtropical plants. Mixed broadleaf deciduous and needleleaf forests, Pinus tabulaeformis and P. densiflora forest and deciduous broadleaf forests are zonal vegetations of the eastern part of Liaoning Province. However, the secondary Quercus mongolica forests and various shrubs are distributed widely. The eastern part of Liaoning Province may be divided into the following two vegetation zones: 1) The north is a temperate zone of the mixed needleleaf and broadleaf deciduous forest; 2) The south is a warm temperate zone of the broadleaf deciduous forest where the southeast of Xiong-yue-Qingyishan line is Pinus densiflora oak forest subzone and the north-west is Pinus tabulaeformis oak forest subzone.