上海露地宿根花卉景观价值的综合评价

Comprehensive appraisal on landscape value for flowering and evergreen perennial.

根据露地宿根花卉的特点 ,以景观价值为总目标确立了 1 4种评价因素 ,并对其进行分类和组合 ,用层次分析法 (AHP法 )建立了一套适合露地宿根花卉的综合评价模型 ,并对 1 4种评价因素进行分析 ,得出其前几个重要的指标 ,按权重值大小依次是绿期长短、适应性、花期早晚、花期天数、花枝量、花色、叶色、花径、花显示度 .按照这个综合评价模型 ,对上海地区 5 2个露地宿根花卉种类及品种进行了综合评价 ,获得了较理想的结果 。

Accroding to the characteristics of the perennial flowers, 14 appraisal indexes are selected and a multifactor appraisal system based on the analytic hierarchy process is developed aiming at getting the landscape value of the perennial flowers, and these indexes of the perennial flowers are analyzed through AHP. The result shows that there are nine important indexes, including green period, growth adaptability, blooming season, blooming time of flowers, the number of flowers, flower colour, leaf colour, flower diameter, significace degree of the flower. Accroding to the multifactor appraisal system, 52 perennial flowers in Shanghai area are judged by this way and satisfied results are obtained,which is an important and scientific foundation for the greening in Shanghai area.