南宁市常见绿化树种滞尘综合效应研究

选择南宁市友爱立交、民族大道、白沙大道3个区域的7种常见道路绿化树种，测定分析了植物叶面滞尘能力、植物抗性的差异，并选取与植物滞尘效应密切相关的植物高度、叶面积指数、单位面积滞尘量、植物抗性和叶面特性等7个分类指标，采用综合指数法对南宁市常见道路绿化树种的滞尘效应进行评价。结果表明，7种绿化树种滞尘能力大小依次为：黄金榕〉大叶红草〉鱼尾葵〉白兰〉七彩朱槿〉垂叶榕〉扁桃；抗性能力大小依次为：黄金榕〉扁桃〉白兰〉垂叶榕〉鱼尾葵〉七彩朱槿〉大叶红草；滞尘综合效应高低依次为：白兰〉鱼尾葵〉扁桃〉黄金榕〉垂叶榕〉七彩朱槿〉大叶红草。

Dust accumulation effect of common green plants in Nanning City

The present study was conducted to determine the plant resistance to dust accumulation in seven common green plants growing on three streets of Nanning City viz., You ＇ailijiao, Minzudadao and Baishadadao. The dust accumulation effects on different green plants were worked out through analyzing different classification indexes, vie., plant height, leaf area index, dust quantity per unit area, plant resistance and leaf characteristics, etc. The results showed significant differences in dust-retention capacity, resistance and dust-retention effects amongst different green plants, and the descending order of dust-retention capacity in seven green plants was as follows： F. mieroearpa cv. Golden Leaves〉 Ahemanthera Ficoidea cv. Ruliginosa 〉 Caryota ocblandra Hance 〉 Michelia alba DC. Syst 〉 Hibiscus rosa-sinensis cv. Cooper 〉 Ficus benjamina Linn. 〉 Mangifera persiciformis C. Y. Wu et T. L. Ming. The descending order of resistance and dust-retention in different green plants was as follows： F. microcarpa cv. Golden Leaves 〉 Ficus benjamina Linn. 〉 Michelia alba DC. Syst 〉 Ficus benjamina Linn. 〉 Caryota ochlandra Hance 〉 Hibiscus rosa-sinensis cv. Cooper 〉 Altemanthera Ficoidea cv. Ruliginosa, Michelia alba DC. Syst. 〉 Caryota ochlandra Hance 〉 Mangifera persiciformis C. Y. Wu et T. L. Ming 〉 Ficus microcarpa cv. Golden Leaves〉Ficus benjamina Linn. 〉Hibiscus rosa-sinensis cv. Cooper〉 Ahemanthera ficoidea cv. Ruliginosa.