苦楝苗期生长规律及风口造林初报

Growth Law of Melia azedarach in Seedling Stage and Forestation on Wind Gap

通过对苦楝苗木生长过程进行实地观测,同时应用系统聚类分析,将苦楝苗木生长划分为出苗期(60d)、生长初期(60d)、生长盛期(60d)和生长末期(90d)等4个时期。风口造林试验表明,苦楝与木麻黄混交造林方式最好,4年生时平均树高1.5m,保存率达85.6%。苦楝在风口造林的成功不仅能提高沿海造林树种的多样性,对防治林业有害生物也起到积极作用。

Through observation on growth process of Melia azedarach , applying hierarchial-cluster analysis, the seedling growth stage was divided into the four stages emergence stage （60 d ）,early seedling stage （60 d ） , fast-growing stage（60 d） , and end of growth stage（90 d） . Wind gap experiments shows that the way of mixed forest of Casuarina equisetifolia Melia azedarach is optimal. The average tree height of 4-year-old Melia azedarachis 1. 5m, and the survival rate is 85. 6%. The success of Melia azedarach afforestation not only improve the diversity of tree species in coast, but also play positive role in prevention control of forestry pests.