哈尔滨红松针阔混交林经营模式研究

Management Models of Coniferous and Broadleaved Mixed Forest of Pinus koraiensis in Harbin City

红松是产于东北三省的珍贵树种,具有重要的生态和经济价值。以哈尔滨市林业局丹青河实验林场的红松针阔混交林为研究对象,运用近自然森林经营的理念,实行中度改造、强度改造、无干扰等3种经营模式,并对3种经营模式下的林分密度、胸高断面积、平均树高、平均胸径及生物多样性进行了比较分析。结果表明:中度改造经营模式为红松和其辅助优势树种提供了优越的生长空间,且不影响生态系统的稳定性,并改善了群落和林冠结构,达到了较好的平衡生态功能,还可获得较好的经济效益。

Pinus koraiensis is valuable tree species which were grown in Heilongjiang Province,Jilin Province and Li-aoning Province;Pinus koraiensis plays an important ecological and economic roles.Taking Pinus koraiensis in Danqinghe Experimental Forest Farm of Harbin City as the research object,using near-natural forest management concept,three operating modes (moderate reform,intensive transformation,without interference)were executed. Stand density,basal area,average height,average diameter and biodiversity under three operating modes were ana-lyzed.Result shows that the management model of moderate transformation provide a superior species growing space for Pinus koraiensis and complementary advantages species,and does not affect the stability of ecosystems,and improved community and canopy structure,to achieve optimal balance between ecological functions;it also obtains optimal value for money.