油松复合经营的生态经济效益

河北省易县清西陵有树龄300余年的古油松林，多分布在西陵乡的昌陵、泰陵等地。古油松林的郁闭度为0．1－0．5，平均郁闭度为0．2，生长良好。河北农业大学西陵教学林场在古油松林下展开了多种类型的复合经营，取得良好的经济、生态和社会效益。本文对油松复合经营模式作了较全面的总结分析。

Ecologically Economic Benefits of Chinese Pine Multibusiness

In Qingxiling of Yi County, Hebei Province ,there are forests with over 300 ages' longleave Chinese pines, most of which are distributed in Changling, Tailing and other places of Xiling Country . The canopy of Chinese palaeopine forests is 0.1-0.5 , averaging 0.2 with good growth . The Xiling Teaching Center of Hebei Agriculture University has developed various multibusiness with good beneficial results of economy, ecology and society . This article summarizes and analyses comprehensively on the multibusiness modes of Chinese pines.