闽楠在毛竹混交林中生长情况初步研究

通过建瓯东安毛竹林中21a生闽楠生长情况的调查表明:闽楠适宜在毛竹林中生长,单株材积0.1958m3,材积1.3350m3/hm2,单株平均年生长量0.0089m3,且与树龄呈正相关系;树高达15.5m,平均树高年生长量0.74m;混交套种闽楠能提高毛竹林的生产潜力,每年可增加毛竹林收益10680元/hm2,同时可改善和调整毛竹林结构,大幅度提高毛竹林经济、生态、社会的整体效益。并探讨了如何采取政策性措施来大力推广发展毛竹林混交套种闽楠,为科学持续发展闽楠这一珍贵用材树种提供实践和理论依据。

Study on the Phoebe bournei in the Phyllostachys heterocycla Plantation

To study the 21 years old Phoebe bournei in the Phyllostachys heterocycla plantation in Dongan,Jianou city,the results shows： the Phoebe bournei is of benefit in Phyllostachys heterocycla plantation,the single volume of trees is 0.1958m3,and the stand reached 1.3350m3 per hm2,mean annual increament of the single tree is 0.0089m3 and which is positively correlated with tree age.The height of tree is 15.5m,and growth rate is 0.74m.Interplanting Phoebe bournei in the Phyllostachys heterocycla plantation can improve the potential production of Phyllostachys heterocycla,which may increase earnings of Phyllostachys heterocycla and it’s up to 10680 Yuan/yr·hm2.Furthermore,it can improve the structure of Phyllostachys heterocycla,and also inhance the economic,ecological and social,and so on.In the end,we explored how to use policy direction to promote the development of interplanted Phoebe bournei in Phyllostachys heterocycla plantation,and provide practical and theoretical basis for the scientific and sustainable development of Phoebe bournei.