Titlebook: Regulationsst?rungen des Herzens und Kreislaufs; Leistungsdiagnostik Hans-Werner Kirchhoff,Peter Beckmann Book 1965 Springer-Verlag Berlin

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N斯巴達人

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Hans-Werner Kirchhoff,Peter Beckmannmal forest planning has already a long history, namely the action developed by foresters and forest economists since the beginning of the nineteenth century, with the introduction of new forest management concepts, some of them still valid nowadays. This chapter briefly presents: (1) The main biophy

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Hans-Werner Kirchhoff,Peter Beckmanns and even necrosis of older needles exhibit very low Mg, Low Ca and Zn, and rather high S concentrations (Zech and Popp 1983). Several authors have reported similar results from other forest areas of Central Europe (Bosch et al. 1983; Z?ttl and Mies 1983; Hüttl 1985; Van Praag and Weissen 1986; Neb

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Hans-Werner Kirchhoff,Peter Beckmannying from seconds to years. Thus, it is no wonder that single explanations for the decline of forests have ranged from the biochemical to the biogeochemical, and from the microbiological to the ecological. Explaining an observed phenomenon depends on the level of organization immediately below the l

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Hans-Werner Kirchhoff,Peter Beckmannying from seconds to years. Thus, it is no wonder that single explanations for the decline of forests have ranged from the biochemical to the biogeochemical, and from the microbiological to the ecological. Explaining an observed phenomenon depends on the level of organization immediately below the l

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