Air Pollution: Dimensions, Trends and Interactions with a Forest EcosystemSpringer Science & Business Media, 6 dec 2012 - 178 pagina's In the early 1980s, forest decline became a matter of public and scientific concern when forest stands with Norway spruce (Picea abies [L. ] Karst. ) showed evident damage on a large geographical scale throughout Europe. The causes of the observed symptoms could not be elucidated on the basis of the state of knowledge at that time. Therefore, several research projects were launched both in Germany and in some other countries in order to identify the relevant pathogenic factors. In 1985, the Federal Ministry for Research and Technology decided to include the site "Postturm", forest district Farchau/Ratzeburg, in the spon sorship of the research on forest decline as a site typical for lowlands and a sphere of anthropogenic urban influence. The investigation area is situated about 40 krn east-northeast of the city of Hamburg. Since spruce trees in particular showed severe decline, emphasis was laid on this species. The programme started in 1986 and extended to 1992, with some activities con tinuing beyond this time. Working groups from 13 institutions took part in the overall project. |
Inhoudsopgave
2 | |
General Outline of the Measuring Station 17 | 16 |
7 | 55 |
Annual Means and LongTerm Trends | 70 |
2 | 82 |
10 | 93 |
Overige edities - Alles bekijken
Air Pollution: Dimensions, Trends and Interactions with a Forest Ecosystem Walfried Michaelis Fragmentweergave - 1997 |
Air Pollution: Dimensions, Trends and Interactions with a Forest Ecosystem Walfried Michaelis Geen voorbeeld beschikbaar - 2011 |
Veelvoorkomende woorden en zinsdelen
air pollution analysis annual mean values atmospheric pollutants Bauch J eds Berlin Heidelberg carbon dioxide CO₂ concentration in ppb crown compartment damage class Dec Fig decline and air deposition velocity Diurnal variation dry deposition Ecological Studies 77 ecosystem element content emissions Feb Mar Forest decline forest ecosystem Forschungsprogramm Waldschäden Forstamt Farchau/Ratzeburg gaseous pollutants gases GKSS Forschungszentrum Geesthacht Hamburg heavy metals Heidelberg New York hourly median value impact Jülich Karst Lange OL Luftverunreinigungen und Waldschäden maxima Measuring period 1987 mg/m²d Michaelis W eds needles nitrogen monoxide nitrogen oxides NO₂ Norway spruce Oct Nov Oren R eds ozone Pepelnik Picea abies Prange Rademacher roots samples Schönburg Schulze Seasonal variation SO₂ soil solution spruce Picea abies Standort Postturm Stößel RP study of spruce sulphur dioxide Table throughfall tion trace elements trees trend TXRF Ulrich Untersuchungen Waldschäden am Standort wet deposition wind direction X-ray fluorescence µg/m²s µg/m³