摘要
为猴樟混交林培育提供理论依据和技术指导,对黔中地区不同类型猴樟混交林及猴樟纯林群落特征进行了调查与分析。结果表明:人工阔叶猴樟混交林内,植物种类丰富,数量较多,猴樟纯林内的植物种类仅为人工阔叶猴樟混交林的41%～73%。不同类型猴樟混交林和猴樟纯林物种多样性存在明显的差异。乔木层物质多样性指数为猴樟×马尾松×楸树>猴樟×女贞×广玉兰>猴樟×杜英×楠木>猴樟×楠木×杜英>猴樟纯林;在灌木层中,除猴樟×女贞×广玉兰混交林物种多样性指数、丰富度指数最低外,其余混交类型都高于猴樟纯林;在草本层中,各混交类型的多样性指数和丰富度指数均高于猴樟纯林,但各混交类型的均匀度指数、优势度指数差异不大,而猴樟纯林均匀度指数最低,优势度指数最高。平均树高,猴樟×杜英×楠木和猴樟×楠木×杜英混交时猴樟的平均树高均大于纯林,分别比猴樟纯林高16%和12%;而猴樟×马尾松×楸树和猴樟×女贞×广玉兰混交林的猴樟平均树高则低于猴樟纯林。平均胸径,猴樟×杜英×楠木混交类型中的猴樟平均胸径最大,为12.5cm,在13～15径级分布较多;其余类型中的猴樟平均胸径较小,在7～9径级和9～11径级分布较多。
The community characteristics of different mixed C.odinieri forests and pure C.odinieri forest were compared and analyzed to provide the theoretical basis and technical guidance for cultivation of mixed C.odinieri forests.The results showed that the plant species and quantity in the artificial mixed C.odinieri forest were higher than those in the pure C.odinieri forest and the species and quantity in the pure C.odinieri forest only accounted for 41%～73% of the artificial mixed C.odinieri forests.There was obvious difference in species diversity between the artificial mixed C.odinieri forests and pure C.odinieri forests.The species diversity index was C.odinieri×Pinus massoniana×Catalpabungeic C.odinieri×Ligustrum lucidum×Magnolia grandiflora C.odinieri×Elaeocarpus decipiens var.decipiens×Phoebe zhennan C.odinieri×Phoebe zhennan×E.decipiens var.decipiens the pure C.odinieri forest in the arborous layer.The species diversity and abundance index of different mixed C.odinieri forests was higher than the pure C.odinieri forest in the shrub layer except for C.odinieri×L.lucidum×M.grandiflora.The species diversity and abundance index of different mixed C.odinieri forests was higher than the pure C.odinieri forest in the herbaceous layer but there was no obvious difference in the evenness and dominance index between different mixed C.odinieri forests.The average tree height of C.odinieri×E.decipiens var.decipiens×P.zhennan and C.odinieri×P.zhennan×E.decipiens var.decipiens was 16% and 12% higher than the pure C.odinieri forest respectively,but the average tree height of C.odinieri×P.massoniana×Catalpabungeic and C.odinieri×L.lucidum×M.grandiflora was lower than the pure C.odinieri forest.The average DBH of C.odinieri×P.massoniana×Catalpabungeic was 12.5 cm and mainly distributed between 13～15 diameter class and the average DBH of other different mixed C.odinieri forests and pure C.odinieri forest was low and mainly distributed in 7～9 and 9～11 diameter class.
出处
《贵州农业科学》
CAS
北大核心
2011年第12期196-201,共6页
Guizhou Agricultural Sciences
基金
贵州省农业科技攻关项目"阔叶乡土树种猴樟培育关键技术研究与示范"[黔科合NY字(2009)3061]
关键词
猴樟
混交林
物种多样性
树高结构
径级结构
Cinnamomun odinieri
mixed forest
species diversity
tree structure
diameter structure
