摘要
叶面气孔扩散阻抗的大小是植物净化空气能力的重要指标之一。作者应用气孔仪在自然条件下测定了10科14种植物的气孔扩散阻抗和蒸腾速率,其中绝大部分为攀西地区常见的绿化树种。结果表明:桑科植物尤其是桑的气孔扩散阻抗最低,平均约为0.49s/cm,具有较高的蒸腾速率和空气净化能力。桑是一种既能获得经济效益又能净化空气的理想树种,无论从生态上及经济上都适于大量种植。
The stomatal diffusive resistance (SDR) of leaves is one of the indexes of the air. filtering abitivty of plants. With the stomatal instrument we investigated the SDR and the transpiration rate in 13 specices of boradleaved trees belonging to 10 families under the natural conditions. The results prove that the plants belonging to uoraceae,speciatily uorus alba L., have the low SDR, high transpiration rate and air-filtering ability. So we can see that uorus alba is an ideal species of plants which can give us economic interests as well as the clean air.
出处
《重庆师范大学学报(自然科学版)》
CAS
1997年第S1期67-70,共4页
Journal of Chongqing Normal University:Natural Science
关键词
桑
气孔扩散阻抗
蒸腾速率
空气净化能力
uorus alba, stomatal diffusive, resislance (SDR), transpiration rate, airfiltering ability