武汉市公园绿地植物的冠层雨水截留能力研究

canopy Rainfall Interception of Landscape plant in wuhan park Greenbelts

摘要:

公园绿地作为城市建设的重要组成部分,在协调雨洪管理方面具有重要作用 。研究植物冠层雨水截留能力的对 提高公园绿地雨洪功能具有重要意义 。本研究对武汉市公园绿地中常见的 80种植物进行了冠层雨水截留能力的测定与 分析 。结果表明: 同一种生活型的植物冠层雨水截留能力各有不同,具有强雨水截留能力的乔木有圆柏、枇杷、雪松、落羽 杉,灌木有绣球荚速、匍枝亮叶忍冬、杜鹃、木芙蓉,草本植物有麦冬、薏苡、香蒲、金门莎草 。不同生活型植物冠层截留能力 均值也存在较大的差异,针叶乔木的冠层雨水截留能力均值最高,而落叶阔叶乔木冠层雨水截留能力均值最低 。该研究可 为进一步筛选雨水截留能力高、适应武汉本土环境气候环境的公园绿地植物提供科学依据。

Abstract:

As an important part of urban construction, park greenbelts play an important role in coordinating the man- agement of rainfall and flood. In this study, the canopy rainfall interception of 80common plants were measured and ana- lyzed. The results showed that the canopy rainfall interception of the same life form plants is different. canopy intercep- tion of some arbors, shrubs and herbs were higher than other plants, such as sabina chinensis,Eriobotrya japonica , cedrus deodara , Taxodium distichum , viburnum macrocephalum , Lonicera ligustrina , Rhododendron simsii, Hibiscus mutabilis , ophiopogon japonicas , coix lacryma-jobi, Typha orientalis, cyperus rotundus . The mean of canopy rainfall interception of different lifeform plants also showed great differences . coniferous trees had the highest mean of canopy rainfall inter- ception, while deciduous broadleaf trees had the lowest one . The information may be useful in further screening of green plants in wuhan park which have higher canopy rainfall interception and adapt to the local climate environment.