摘要
文章以野鸦椿(Euscaphis japonica)为例,采用层次熵灰色关联法,对梅州地区调查发现的33株自然生长的野鸦椿植株的观赏价值进行综合评价。首先根据林业专业人员给出的各评价指标的重要性值,用层次分析法确定各指标权重,然后用熵值法进行修正,在修正的权重基础上,对野鸦椿进行灰色关联综合评价,并根据加权关联度R的大小对33株野鸦椿的观赏性进行量化排序与分级。33株野鸦椿分成4个等级,其中观赏价值高的一级单株有1株(R=0.868),是32号树(苍子下3号);观赏价值较高的二级单株有1株(R=0.681),是12号树(樟坑12号);观赏价值为三级的单株有7株(0.402≤R<0.681);其余24株为四级单株(0<R<0.402)。且所分等级差异性通过了显著性检验,说明分级结果合理可行。
In order to explore the scientific plant ornamental evaluation method,taking Euscaphis japonica as an example,the grey correlation method was adopted to evaluate the ornamental value of33naturally growing strains of E.japonica in Meizhou area.Firstly,according to the importance value of each evaluation index given by forestry professionals,the weight of each index was determined by analytic hierarchy process,and then was modified by entropy method.On the basis of the corrected weight,the grey relational method was used to comprehensively evaluate the E.japonica.Based on the size of the weighted correlation degree R,the33strains of E.japonica appreciation was quantitatively ranked and classified.The results showed that33strains of E.japonica were divided into four grades,among which1plant with high ornamental value(R=0.868)was NO.32(Cangzixia NO.3),and1plant in the second-grade ornamental value(R=0.681)was NO.12(Zhangkeng NO.12).There were7plants with the ornamental value of grade three(0.402≤R<0.681),and the remaining24plants were in the four-grade(0<R<0.402).In addition,the difference in grade passed significance test,which showed that the classification results were reasonable and feasible.
作者
林立
邓春亮
张冬生
范剑明
陈新强
LIN Li;DENG Chunliang;ZHANG Dongsheng;FAN Jianming;CHEN Xinqiang(Forestry Research Institute of Meizhou, Meizhou, Guangdong 514011, China;Jiaying University, Meizhou, Guangdong 514015,China)
出处
《林业与环境科学》
2018年第1期75-82,共8页
Forestry and Environmental Science
基金
广东省林业科技创新项目"观赏和药材两用植物野鸦椿种质资源收集
筛选及繁育栽培技术研究与示范"(2017KJCX063)
关键词
野鸦椿
灰色关联
观赏性
综合评价
Euscaphis japonica
grey correlation
ornamental characteristic
comprehensive evaluation
