Сводный каталог книг

[Текст] : mathematical analysis and modeling / Ed. by J. Kranz. - Second edition. - Berlin ; Heidelberg ; New York a.o. : Springer-Verlag, 1990. - 268 с. : figures. - (Ecological studies ; 13). - Библиогр: at the end of the chapters%ISBN 3-540-52116-X. - 31-00 р.

УДК

632

Аннотация: In this volume experts present the latest status of mathematical and statistical methods in use for the analysis and modeling of plant disease epidemics. Topics treated are methods in multivariate analyses, ordination and classification, modeling of temporal and spatial aspects of air- and soilborne diseases, methods to analyse and describe competition among subpopulations, e.g. pathogen races and their interaction with resistance genes of host plants, assemblage and use of models, mathematical simulation of epidemics. New chapters on the modeling of the spreading of diseases in air and in soil are included in this second edition.

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[Text] = Gremmeniella abietina on Scots pine in Rikkilehto stand in Salla northern Finland : научное издание / J. Kaitera, R. Jalkanen. - Helsinki : Metsantutkimuslaitos, 1993. - 18 с. : рис., табл. - (Folia Forestalia ; № 811). - fin. - Библиогр.: с.16-18. - ISSN 0015-5543. - ISBN 951-40-1312-3 : 800.00 р.

УДК

06

Аннотация: Several Scots pine stands damaged by G. abietina (Lagerb.) Morelet were found in eastern Lapland during the years 1988-1989. The most severely damaged area 3.6 ha in size was a stand in Rikkilehto, Naruska, Salla. The conditiion of the trees quality of the site and the history as well as the significance of G. abietina in Rikkileho prior to 1991 is reported. The most important damage agent was G. abietina, but also pine shoot beetles (Tomicus spp.) had caused shoot mortality. About 60 % of the Scots pines were dead. Their radial increment had started to decrease in 1960's, and continued to do so in the 1970's and 1980's. The most sever damage was concentrated at the very bottom of the area. The pH of the humus correlated positively with the damage degree.


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Jalkanen, R.
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