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Titlebook: Air Pollution; Dimensions, Trends a Walfried Michaelis Book 1997 Springer-Verlag Berlin Heidelberg 1997 Humus.Schadstoff.Schadstoffe.Wald.W

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發(fā)表于 2025-3-21 17:45:52 | 只看該作者 |倒序?yàn)g覽 |閱讀模式
期刊全稱Air Pollution
期刊簡(jiǎn)稱Dimensions, Trends a
影響因子2023Walfried Michaelis
視頻videohttp://file.papertrans.cn/152/151777/151777.mp4
圖書封面Titlebook: Air Pollution; Dimensions, Trends a Walfried Michaelis Book 1997 Springer-Verlag Berlin Heidelberg 1997 Humus.Schadstoff.Schadstoffe.Wald.W
影響因子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.
Pindex Book 1997
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書目名稱Air Pollution影響因子(影響力)




書目名稱Air Pollution影響因子(影響力)學(xué)科排名




書目名稱Air Pollution網(wǎng)絡(luò)公開度




書目名稱Air Pollution網(wǎng)絡(luò)公開度學(xué)科排名




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書目名稱Air Pollution年度引用




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,Schnittgeschwindigkeiten und Vorschübe,Germany with a certainly marked component due to the conurbation of Hamburg. The main emitters of SO. are the power and district heating stations. A similar transport situation is valid for NO... Here, the main source is the NO.-emitting motor traffic.
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Erratum: Die Offenbacher Automaten,hese facts are illustrated in Fig. 9.1, where the differential trace element concentrations are plotted with decreasing particle diameter from left to right according to the six fractions of the impactor used (cf. Sect. 5.1.3). The diagram also demonstrates the excellent detection sensitivity of the
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Introduction,welt, Raumordnung und Landwirtschaft des Landes NRW 1988 ff; Schulze et al. 1989). Slightly damaged trees may occur due to natural causes, for instance, due to climatic influences or epidemics, but more severe damage or even the death of trees was soon attributed to anthropogenic causes such as dire
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Deposition of Anions and Cations Via Precipitation,Germany with a certainly marked component due to the conurbation of Hamburg. The main emitters of SO. are the power and district heating stations. A similar transport situation is valid for NO... Here, the main source is the NO.-emitting motor traffic.
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Concentrations and Deposition of Gaseous Pollutants: SO2, NO2, NO, NH3 and O3,° sector element, normalized to the frequency distribution of the wind direction (Michaelis et al. 1990, 1992). The diagram represents the conditions at the early stage of the project, i.e. in the period 1987/1988. Developments after the German reunification will be discussed in Section 12.2.
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