柳州市沿江公园彩叶植物资源及适应性调查

【目的】调查柳州市沿江公园彩叶植物种类及其生长适应性，为柳州以及周边城市滨水绿地的彩化提供参考。【方法】通过现场实地调查、专家咨询以及改良的AHP模型评价法，对柳州市沿江公园彩叶植物种类及适应性进行分析研究。【结果】调查范围内共有乔木、灌木和草本彩叶植物48种，分属32科41属，以乔木和灌木居多。根据色彩在叶面上的分布和观赏期分类，柳州市沿江公园彩叶植物秋色叶类占37．5％，春色叶类（包括新叶有色类）占29．2％，常色叶类与斑色叶类依次为18．8％和16．7％，双色叶类所占比例最小，占4．2％。运用改良的彩叶植物适应性综合评价AHP模型筛选出19种表现好的彩叶植物。【结论】柳州市沿江公园彩叶植物资源丰富，适合岸边湿地的彩叶植物18种；采用改良AHP模型对彩叶植物的适应性进行综合评价，表现好的彩叶植物是引种的种类多于乡土种。

Adaptability survey on color-leafed plant resources in Liuzhou riverside parks

Objective ]Colored-leaf plant varieties and their growth adaptability in Liuzhou riverside parks were investigated so as to provide references for coloring the waterfront green area in Liuzhou and its adjacent cities. Method]The field investigation, the expert consuhancy and the improved AHP model were applied. Result]Forty-eight color-leafed species of different kinds of arbor, shrub and herb were found which belonged to thirty-two families and forty-one genera. Arbor and shrub were the majority. According to color distribution and appreciation period,in Liuzhou riverside parks autumn-colorleaf plants occupied 37.5% of the total plants, spring-color-leaf plants （new-colorful-leaf plants） occupied 29.2% of the total plants, and regular-color-leaf plants and brindle-color-leaf plants accounted for 18.8% and 16.7%, respectively. Double-color-leaf plants made up 4.2%, which was the least. Nineteen color-leafed species were selected using the improved AHP model for the adaptability evaluation of color-leafed plants. Conclusion]Color-leafed plants were rich in resources of riverside parks in Liuzhou. Eighteen color-leafed species were suitable for wetland shore. Based on the results of the modified AHP model, the performance of introduced varieties were superior to that of the local ones.