浙西南速生工业原料林阔叶树种评价与选择研究

在分析浙西南地区自然条件和社会经济状况基础上,针对营造工业原料林的需求,制订阔叶造林树种选择标准.以生长量、适应性、造林特性和经济特性为树种选择的主要依据,确定了11个评价指标,采用5分制提出了每一个指标的分级标准,并运用层次分析法确定了各个指标的权重.根据各指标分值和权重,对实地调查和资料检索确定的20个参选树种(无性系)进行了综合评价.结果表明:毛红椿(Toona ciliate var. pubescens)、杨树(Populus deltoides)、邓恩桉(Eucalyptus dunnii)、南酸枣(Choerospondias axillaris)、香椿(Toona sinensis)、苦楝(Melia azedarach)、翅荚木(Zenia insignis)、桤木(Alnus cremastogyne)等综合评价表现较好.根据综合评价结果,结合树种特性和浙西南立地实际,建议选择毛红椿、南酸枣、香椿、桤木、杨树作为当前浙西南速生工业原料林主要阔叶造林树种,因地制宜进行推广,翅荚木可选耐寒种源进行试验发展.

Evaluation and Selection of Broad Leaved Tree Species for Fast-Growing Industrial Plantation in Southwest Zhejiang

The standard was established for selecting broad leaved tree species for plantation in this research,based on analyzing the natural condition and the social economy in southwest Zhejiang according to the demand of industrial plantation of this area.The increment,adaptability,planting characteristics and economic characteristics were the main basis for tree species selection,11 evaluation indexes were determined,The 5-grade marking system was used to set the grading standard for each index,Analytic Hierarchy Process was also used to determine the weight of each index.According to the score and weight of each index,20 selected trees(clones)chosen by site investigation and information search were integrative evaluated.The result showed,Toona ciliate var.pubescens,Populus deltoides,Eucalyptus dunnii,Choerospondias axillaris,Toona sinensis,Melia azedarach,Zenia insignis and Alnus cremastogyne etc.had good representation for integrative evaluation.According to the tree species characteristics and site condition of southwest Zhejiang,it was suggested that Toona ciliate var.pubescenes,Choerospondias axillaris,Toona sinensis,Alnus cremastogyne and Populus deltoides could be used as the main broad leaved tree species for the present fast-growing industrial plantation in southwest Zhejiang and first extended with adjusting measures to local conditions,Zenia insignis could be tested and developed selecting cold resistance seed sources.