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| 高原地区太阳UV-B增加对燕麦有效光合叶面积及灌浆的影响研究 | |
| 引用本文： | 王生耀,王堃,赵永来,辛有俊.高原地区太阳UV-B增加对燕麦有效光合叶面积及灌浆的影响研究[J].光谱学与光谱分析,2009,29(5):1378-1381. |
| 作者姓名： | 王生耀 王堃 赵永来 辛有俊 |
| 作者单位： | 1. 中国农业大学动科院草地研究所,北京,100094;青海省草原总站,青海西宁810001 2. 中国农业大学动科院草地研究所,北京,100094 3. 青海省草原总站,青海西宁,810001 |
| 基金项目： | 国家重点基础研究发展规划(973计划) |
| 摘 要： | 由于大气的污染造成大气层臭氧层变薄,从而导致来自太阳紫外线-B辐射量增加,青藏高原UV-B增加量为全球第二,主要集中在6～9月份,正是植物生长、繁殖期,因此对植物可能产生一些负面影响.试验在大田条件下通过采用人工UV-B灯管模拟来增加太阳光辐射量5%和10%,进行对燕麦(Avena sativa)叶片衰老及灌浆期处理研究.结果表明:UV-B强度增加对有效光合面积和叶绿素含量下降的速率并无显著的影响,也未出现提前结束灌浆及早衰的趋势.表明在大田群体条件下,UV-B增加并未显著加速灌浆期燕麦的衰老过程.换言之,在青藏高原上来自太阳紫外辐射量的增加不会造成对草地显著影响. |
| 关 键 词： | 燕麦 有效光合叶面积 灌浆期 |
| 收稿时间： | 2007/7/10 |
Effects of Enhanced Solar UV-B Radiation on the Effective Photosynthetic Leaf Area and Milking Phase of Oat under Natural Field Condition in Qing Tibetan Plateau |
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| WANG Sheng-yao,WANG Kun,ZHAO Yong-lai,XIN You-jun.Effects of Enhanced Solar UV-B Radiation on the Effective Photosynthetic Leaf Area and Milking Phase of Oat under Natural Field Condition in Qing Tibetan Plateau[J].Spectroscopy and Spectral Analysis,2009,29(5):1378-1381. | |
| Authors: | WANG Sheng-yao WANG Kun ZHAO Yong-lai XIN You-jun |
| Institution: | WANG Sheng-yao1,2,WANG Kun1,ZHAO Yong-lai2,XIN You-jun2 1.The Institute of Grassl, Research of Animal Scientific College of Agricultural University of China,Beijing 100094,China 2.The General Station of Grassl, of Qinghai Province,Xining 810008,China |
| Abstract: | Stratospheric ozone depletion occurs mainly over polar regions during the spring when the solar ultraviolet B-band(280-315 nm,UV-B) radiation is most intense in a year,but over the Qing Tibetan Plateau region,the intensity is highest from June to September when the amount of UV-B radiation reaching the regions is more than that in the adjacent areas lying in the same latitude by 10%.From June to September is just the time of plant's germination,development,and reproduction in the alpine region.The enhanced ... |
| Keywords: | UV-B |
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