| 沈阳市6种行道树对紫外辐射屏蔽效应的研究 |
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| 引用本文： | 吴家兵,孙雨,李荣平,孙迪.沈阳市6种行道树对紫外辐射屏蔽效应的研究[J].辽宁林业科技,2011(4):1-3,46. |
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| 作者姓名： | 吴家兵 孙雨 李荣平 孙迪 |
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| 作者单位： | 1. 中国科学院沈阳应用生态研究所,辽宁,沈阳,110016
2. 中国气象局沈阳大气环境研究所,辽宁,沈阳,110016 |
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| 基金项目： | 国家自然科学基金项目(30700085); 辽宁省自然科学基金项目(20102233)资助 |
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| 摘 要： | 应用便携式紫外辐照计测定银杏、银中杨、垂柳、垂榆、梓树和京桃6种行道树树冠及其单叶对紫外辐射的屏蔽效应。结果表明：各树种紫外线辐射强度的日变化呈倒＂U＂字型,绿叶屏蔽紫外辐射的效果要好于黄叶。6个树种均表现出良好的紫外辐射屏蔽功能,67%以上的紫外辐射被屏蔽,屏蔽效应大小依次为：京桃〉垂榆〉梓树〉银杏〉垂柳〉银中杨。
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| 关 键 词： | 行道树 UV-B辐射 屏蔽效应 |
Screening effect to UV of 6 street tree species in institutional campuses in Shenyang City |
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| WU Jia-bing,SUN Yu,LI Rong-ping,SUN Di.Screening effect to UV of 6 street tree species in institutional campuses in Shenyang City[J].Liaoning Forestry Science and Technology,2011(4):1-3,46. |
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| Authors: | WU Jia-bing SUN Yu LI Rong-ping SUN Di |
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| Institution: | WU Jia-bing,SUN Yu1,LI Rong-ping2,SUN Di1(1.Institute of Applied Ecology,CAS,Shenyang 110016,China,2.Institute of Atmospheric Environment,CMA,Shengyang 110016,China) |
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| Abstract: | Diurnal variations of ultraviolet-B radiation under the canopy and the leaves of Ginkgo biloba,Populus alba×P.berolinensis,Salix babylonica,Ulmus pumila cv.pendula,Catalpa ovata,and Prunus davidiana were measured by using UV-B radiometer.The result showed that the diurnal variation of ultraviolet radiation of all tree species present ＂U＂ type,and the green leaves showed better screening effect on ultraviolet-B radiation than that of yellow leaves.All of the six species were effective for screening ultraviolet,and they could screen 67 percents of ultraviolet,Prunus davidiana had the highest screening effects to ultraviolet,the higher was Catalpa ovata,Ginkgo biloba,Salix babylonica and Populus alba×P.berolinensis. |
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| Keywords: | street tree UV-B radiation screening effect |
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