摘要
基于长白山露水河林区2003年和2013年两次森林资源规划设计调查中固定样地资料,利用相对生长法,对长白山露水河林区各林分类型的乔木层生物量和生产力进行了研究,结果表明:长白山露水河林区各林分类型乔木层生物量平均为175.07t/hm2,其中天然林平均乔木层生物量要高于人工林。天然林中针叶树种和慢阔类树种积累生物量的能力较强,而人工林中以人工红松林的乔木层生物量最高。半数以上林分类型随着林龄的增长,乔木层生物量逐步升高;其他林分类型变化趋势不一。长白山露水河林区各林分类型的乔木层生产力平均5.00t/(hm^2·a),总体看来,人工林的生产力比天然林高。人工林中乔木层生产力最高的是人工红松林,这与人为抚育有关,而天然林中以针叶混交林乔木层生产力最高。
Based on the forest management inventories in Lushihe Forest Bureau of Changbai Mountains in2003 and 2013,and by using relative growth method,we analyzed the biomass and productivity of various forest types in Lushihe Forest Bureau.The results showed that the average of biomass was 175.07t/hm^2,and the natural forest biomass was higher than the plantations.Conifer species and the slow accumulation of broad tree species in natural forest have strong capabilities to yield biomass,while biomass of artificial Korean pine forest is the highest,which is on the red pine plantation.With the growth of different types of forest age of stand,biomass trend was different.With age increase of more than half of the growth forest types,biomass gradually increased;other forest types changed irregularly.Average productivity of all forest types in Lushihe Forest Bureau was 5.00t/（hm^2·a）,and the natural forest biomass was lower than the plantations.The most productive plantation is artificial Korean pine forest,which is related to nursing,while the productivity of natural coniferous forest is the highest.
出处
《水土保持研究》
CSCD
北大核心
2016年第4期277-281,287,共6页
Research of Soil and Water Conservation
基金
交通运输部应用基础研究项目"黄土地区公路边坡绿地条件对绿化植被生长及演替的影响机理研究"(2013319223200)
关键词
生物量
生产力
林分类型
林龄
biomass
productivity
forest age
stand type
