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  • 1975-1979  (2)
  • 1965-1969  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    NATIONAL INCOME, WELFARE, AND THE ENVIRONMENT (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Review of income and wealth 24 (1978), S. 0 
    Details
    ISSN: 1475-4991
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Wirtschaftswissenschaften
    Notizen: This article explores the assumptions underlying present definitions of national income in its principal uses, and considers the alterations that would be needed to allow for the inclusion of environmental quality. A numerical example illustrates the impact of alternative measures. The discussion concludes that if we want national income to conform more closely to theoretical concepts of welfare indices, then we need to include a proxy for those environmental services that would not be completely free goods if it were possible to overcome their inherent non-marketability. The least unsatisfactory proxy would be the spending on environmental protection.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1475-4991.1978.tb00067.x
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  • 2
    Digitale Medien
    Digitale Medien
    USES OF AEROSPACE IN RESEARCH FOR THE INTERNATIONAL YEARS OF THE QUIET SUN (IQSY 1964-1965) (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 134 (1965), S. 0 
    Details
    ISSN: 1749-6632
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1749-6632.1965.tb56159.x
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  • 3
    Digitale Medien
    Digitale Medien
    Comparative role of phosphate in soil or inside the host on the formation and effects of endomycorrhiza (1978)
    Springer
    Plant and soil 49 (1978), S. 561-567 
    Details
    ISSN: 1573-5036
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary Non-mycorrhizal plants grown 5 weeks in a low-phosphate soil with different amounts of soluble P were transplanted to soil also with different levels of phosphate and inoculated with VA mycorrhiza. The intensity of mycorrhizal infection as affected by the interaction of differents levels of phosphate in soil and in the host was examined after a further 8 weeks. In the soil with no added phosphate mycorrhizal infection was not affected by the initial P content of the plants. When 0.8 or 1.5 g K2PO4 was given per kg soil both the external and the internal P negatively influenced the infection. In some conditions a P content that was supraoptimal for infection was not for plant growth. The critical P concentration in plants depends on the age of the host. An interaction between P and N as a factor contributing to phosphate ‘toxicity’ is discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02183281
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