基于AHP法和SBE法的郑州龙子湖公园植物群落景观综合评价

Comprehensive Evaluation of the Landscape of the Plant Communities in Longzi Lake Park in Zhengzhou Based on AHP and SBE Methods

根据郑州龙子湖公园的现场调查数据,对其40个样地采用AHP法和SBE法进行综合评价与分析。结果表明,郑州龙子湖公园植物群落景观的AHP法评价结果是Ⅰ级景观7个,Ⅱ级景观33个,无Ⅲ级、Ⅳ级景观,且I级景观中6个均为乔-灌-草类型,表明植物群落的丰富程度对植物景观整体效果具有很大的影响,龙子湖公园的植物群落景观处于中等偏上水平,但景观优质的植物群落相对较少;经Kendall's W协和系数对AHP法和SBE法的评价结果检验,得出W=0.909,渐近显著性为P=0.001<0.05,说明2种方法评价结果整体具有较高一致性。但个别评价结果差异性较大,说明AHP法侧重于专家角度,强调全面型,忽略使用者的感受,SBE法则侧重于使用者的角度,强调使用者的直观感受,但评价结果不够客观全面;通过标准化处理,汇总得到最终的评价结果,使评价结果更具科学性和全面性,为当下植物群落景观评价提供新思路。

According to the field survey data of Longzihu Park in Zhengzhou, methods of AHP and SBE were adopted to conduct the comprehensive evaluation of the landscape of plant communities in the park based on the data collected from 40 sample plots.The results showed that by the AHP method, 7 plant communities were in level Ⅰ,and 33 were in level Ⅱ.Among the 7 level-Ⅰ plant communities, 6 were arbor-shrab-grass type, indicating that the richness of the plant community had a great impact on the overall effect of the plantscape, and the plant community landscape of the park was at the upper middle level, but there were relatively few high-quality landscape plant communities.After verified by Kendall's W concordance coefficient method, the value of W for AHP and SBE was 0.909 with the asymptotic significance of P=0.001<0.05,indicating that the overall evaluation results of the two methods had high consistency.However, the individual evaluation results were quite different.Because the AHP method focuses on the expert's perspective, emphasizing comprehensiveness, and ignores the user's feelings.The SBE method however, focuses on the user’s perspective and emphasized the user's intuitive feelings, which results the evaluation is not objective and comprehensive.Through standardized processing, the final evaluation results were aggregated to make the evaluation results more scientific and comprehensive, and provided new ideas for the current evaluation of plant community landscapes.