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Titlebook: UV-B and Biosphere; J. Rozema,W. W. C. Gieskes,H. Boois Book 1997 Springer Science+Business Media Dordrecht 1997 Chloroplast.bean.biogeoch

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发表于 2025-3-21 17:40:48 | 显示全部楼层 |阅读模式
书目名称UV-B and Biosphere
编辑J. Rozema,W. W. C. Gieskes,H. Boois
视频video
丛书名称Advances in Vegetation Science
图书封面Titlebook: UV-B and Biosphere;  J. Rozema,W. W. C. Gieskes,H. Boois Book 1997 Springer Science+Business Media Dordrecht 1997 Chloroplast.bean.biogeoch
描述Current phase-out schedules of the production and emission of CFC‘s indicate that chlorine loading in the stratosphere is not yet at its maximum. The recovery of stratospheric ozone is estimated to take time and ele­ vated levels of UV-B radiation are expected to occur throughout most of the next century. Despite numerous physiological studies of UV-B effects on plants, often grown in climate chambers, knowledge of UV-B effects on organisms and processes in natural aquatic or terrestrial ecosystems is poor. Currently it appears that UV-B radiation is not just an environmental stress‘ factor to plants. In various ways, which are incompletely understood, UV-B affects a wide range of physiological and ecological processes. Remarkably, recent field studies indicate that enhanced UV-B does not markedly affect photosynthesis, growth and primary production, but rather interferes with plant morphogenesis and plant and ecosystem functions relating to the secondary metabolism. This special issue and book UV-B and Biosphere is an attempt to cover this range and to report the progress made in the research of ecological effects of enhanced solar UV-B radiation. The papers in this book formed th
出版日期Book 1997
关键词Chloroplast; bean; biogeochemical cycles; ecosystem processes; ecosystems; nitrogen; phaseolus vulgaris l;
版次1
doihttps://doi.org/10.1007/978-94-011-5718-6
isbn_softcover978-94-010-6411-8
isbn_ebook978-94-011-5718-6
copyrightSpringer Science+Business Media Dordrecht 1997
The information of publication is updating

书目名称UV-B and Biosphere影响因子(影响力)




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发表于 2025-3-21 21:37:12 | 显示全部楼层
The impact of elevated UV-B (280–320 nm) radiation levels on the reproduction biology of a highland th populations individual seed mass as well as seed germination percentages were unaffected by the UV-B flux received by the parental plant. Possible effects of UV-B induced alterations in reproductivity on the geographical distribution of the different populations are discussed.
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Reaction of savanna plants from Botswana on UV-B radiationcantly decreased and supported the tendency of decreased biomass of UV-B radiated plants. It is concluded that from the investigated savanna species the grasses are relatively well adapted to increased UV-B due to their actual exposure to high UV-B radiation under Botswana conditions, whereas saplings of . are more sensitive to UV-B radiation.
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Effects of acute and chronic UV-B exposure on a green alga: a continuous culture study using a compun cell division rate and an increase in the cellular content of proteins, carbohydrates and chlorophyll . was measured. Transition experiments showed that complete acclimatisation to UV-B took several cell cycles. DNA damage appears to be the major cause of the observed long-term UV-B effects.
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Outdoor supplementation systems for studies of the effects of increased UV-B radiationuring the past 3 years. These supplementation systems differ in their methods of operation, equipment, UV-B exposure regime and experimental design. This essay surveys the systems currently developed, considers problems associated with their use and discusses these in relation to the interpretation of biological effects.
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Penetration and effects of solar UV-B on phytoplankton and macroalgae and the penetration of solar radiation into different water types (coastal and oceanic waters of the Baltic Sea, North Sea, Atlantic and Mediterranean) were investigated. Penetration of short wavelength solar radiation strongly depends on the content of dissolved and particulate substances as well
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Effects of acute and chronic UV-B exposure on a green alga: a continuous culture study using a compuoves upon previous laboratory culture approaches. It is demonstrated that short-term experiments underestimate UV-B effects. It is also shown that photoinhibition cannot explain the effects under chronic exposure. Under both nutrient-replete and phosphorus-limiting conditions a UV-B mediated delay i
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