Pinus sylvestriformis and P. sylvestris have been introduced to Zhanggutai sandy area since 1981 aiming at the shortage of vegetation and unitary structure of tree species in Keerqin Sandland.

• 摘要针对科尔沁沙地治沙植物匮乏、树种结构单一等问题，自1981年开始，在章古台沙地引种长白松和欧洲赤松。