Faculty of Sciences, University of Southern Queensland, Toowoomba 4350, Australia.
J Photochem Photobiol B. 2010 May 3;99(2):87-92. doi: 10.1016/j.jphotobiol.2010.02.010. Epub 2010 Mar 2.
The possible ramifications of climate change include the influence it has upon the amount of cloud cover in the atmosphere. Clouds cause significant variation in the solar UV radiation reaching the earth's surface and in turn the amount incident on ecosystems. The consequences of changes in solar UV radiation delivered to ecosystems due to climate change may be significant and should be investigated. Plants are an integral part of the world wide ecological balance, and research has shown they are affected by variations in solar UV radiation. Therefore research into the influence of solar UV radiation on plants is of particular significance. However, this requires a means of obtaining detailed information on the solar UV radiation received by plants. This research describes a newly developed dosimetric technique employed to gather information on solar UV radiation incident to the leaves of plants in combination with the measurement of spectral irradiances in order to provide an accurate method of collecting detailed information on the solar UV radiation affecting the canopy and lower leaf layers of individual plants. Variations in the measurements take into account the inclination and orientation of each leaf investigated, as well as the influence of shading by other leaves in the plant canopy.
气候变化的可能影响包括其对大气云量的影响。云层导致到达地球表面的太阳紫外线辐射发生显著变化，并进而影响生态系统的入射量。由于气候变化导致到达生态系统的太阳紫外线辐射发生变化，其后果可能是重大的，应该进行调查。植物是全球生态平衡的组成部分，研究表明它们受到太阳紫外线辐射变化的影响。因此，研究太阳紫外线辐射对植物的影响具有特别重要的意义。然而，这需要一种获取有关植物接收到的太阳紫外线辐射的详细信息的手段。本研究描述了一种新开发的剂量测定技术，用于收集有关植物叶片接收到的太阳紫外线辐射的信息，同时测量光谱辐照度，以提供一种准确的方法来收集有关影响单个植物冠层和下部叶片层的太阳紫外线辐射的详细信息。测量的变化考虑到每个被研究叶片的倾斜和方向，以及植物冠层中其他叶片的阴影影响。
