[ نُشرت في: Pollution ]
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الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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النتائج 11 - 11 من 11
Direct and indirect effects and the long term risks of air pollution on forest ecosystems: the role of forest health monitoring
1993
Innes, J.L. (Swiss Federal Institute for Forest Snow and Landscape Research, Birmensdorf (Switzerland))
Monitoring of forest health represents an important part of programmes assessing the actual and potential impact of air pollution and climate change on forests. The available information indicates that variation between years is high, indicating that long term time series will be required to identify trends in forest condition.
اظهر المزيد [+] اقل [-]
International Union of Forestry Research Organizations - Austria
