摘要
以杉木或湿地松为主要树种,用南酸枣、檫树、樟树、乐昌含笑、福建柏、鹅掌楸、蓝果树等作伴生树种,开展了13个类型的混交林试验研究,在定性分析筛选的基础上,初选出9个比较优良的混交类型,再依据Ii=P1h/H+P2d/D+P3v/V计算出混交类型的优选指标,用I标准=I平均+aδn计算出类型的优化标准为6.12。据此对参试的混交类型进行优选,选出的最佳混交类型为杉木+南酸枣、杉木+檫树、杉木+樟树和湿地松+鹅掌楸4个混交类型,供林业生产上推广应用。
The experiment on13mixed types of Cunninghamia lanceolata or Pinus elliottii as the major and the species of Choerospondias axillaris、Sassafras tsumu 、Cinnamomum comphora、Michelia tsoi、Fokielia hodginsii、Liro-dendron chinense and Nyssa sinensis as the associated.Firstly9better mixed types were selected out basis on the preliminary study,secondly the optimum indexes of mixed types were calculated by I i =P 1 h/H+P 2 d/D+P 3 v /V,and then the optimum criterion of6.12was calculated by...
出处
《江西林业科技》
2001年第S1期1-2,共2页
Jiangxi Forestry Science and Technology
关键词
混交林
混交类型
优选指标
优化标准
Mixed plantation
Mixed types
Optimum indexes
Optimum criterion
