【摘要】 在落叶松林地对色赤杨林带进行护林阻火试验表明，色赤杨是一种速生耐火树种，５～６ａ后其郁闭度可达０．９以上；林带下可燃物较其它阔叶树少，仅为０．８ｋｇ·ｍ－２；春秋２季火险期内较安全，自然阻火作用明显更多还原

【Abstract】 Fire-resistance test with Alnus tinctoria forest belt in larch plantations shows that Alnus tinctoria is a fast growing and fire-resistance species, and its shade density after 5￣ 6years growing is more than 0. 9. The combustibles are less in the belt than in broadleaved forest, being 0. 8 kg·m-3. It is quite safety during fire risk period of Spring and Autumn, and has a significant natural fire-resistance effect.更多还原