拖累
发表于 2025-3-21 17:28:20
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flaunt
发表于 2025-3-21 22:31:47
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commonsense
发表于 2025-3-22 02:07:00
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单纯
发表于 2025-3-22 07:44:13
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Flatter
发表于 2025-3-22 10:18:50
forest trees, as evidenced by the programme of this conference. This is in stark contrast to research over the last 70 years in both Europe and North America, where emphasis has been placed on understanding the impact of air pollutants on the economic yield of major agricultural crops. The present
没有贫穷
发表于 2025-3-22 16:36:23
R. Plankrial and aquatic ecosystems; but others induce stresses that change the current condition of specific plants, animals, and microorganisms or alter the health, productivity, genetic structure, and/or the geographic distribution of whole ecosystems. Recent research to determine the effects of airborne
assent
发表于 2025-3-22 19:19:58
R. Plankormer Minister of Health and Environmental Protection of the Netherlands, emphasised the need for setting up a concerted research programme including the effects of air pollution on terrestrial and aquatic ecosystems. The Council of Ministers of the European Community in 1984 adopted a revision of t
grieve
发表于 2025-3-22 22:38:22
R. Planking of pollution climates is necessary to define relationships between deposition and effects of pollutants. Knowledge of rainfall chemistry has improved in recent years so that maps of rain acidity in Europe can be prepared, but the relative contributions from natural and anthropogenic sulphur are
品牌
发表于 2025-3-23 02:49:56
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脆弱吧
发表于 2025-3-23 09:34:13
I of this Symposium and during a Workshop held in Bern, Switzerland (27 – 30 April 1987). This report attempts to summarize some of the main results from these discussions and to indentify important needs for future research.