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Received:October 09, 2017Revised:January 17, 2018
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The Application of AHP Entropy Technology and Gray Correlation in Plant Ornamental Evaluation ——A Case Study of Euscaphis japonica
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Abstract:
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 of 33 naturally 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, the 33 strains of E. japonica appreciation was quantitatively ranked and classified. The results showed that 33 strains of E. japonica were divided into four grades, among which 1 plant with high ornamental value ( 0.868) R = was NO. 32 (Cangzixia NO.3), and 1 plant in the second-grade ornamental value ( 0.681) R = was NO. 12 (Zhangkeng NO.12). There were 7 plants with the ornamental value of grade three(0.402 ≤ R < 0.681), and the remaining 24plants 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.
Key words:  Euscaphis japonica; grey correlation; ornamental characteristic; comprehensive evaluation

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