Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

/ V. G. Soukhovolsky, P. A. Krasnoperova, E. N. Palnikova [et al.] // Contemp. Probl. Ecol. - 2019. - Vol. 12, Is. 7. - P753-759, DOI 10.1134/S1995425519070126. - Cited References:42. - This work was financially supported by the Russian Federal Property Fund (grants nos. 15-04-01192-a and 17-29-05074 ofi-m). . - ISSN 1995-4255. - ISSN 1995-4263РУБ Ecology

Аннотация: The time series of the radial increment of pine Pinus sylvestris L. in 1945-2015 were studied on the territory of the Krasnoturansky pine forest in the stands damaged during the outbreak of the pine looper Bupalus piniarius L. in 1974-1978 and in the stands not damaged by the pest. To assess the differences in the processes of radial increment of trees in damaged and undamaged stands before the outbreak, it is proposed to use the regulatory characteristics of time series, such as the values of n delay (autocorrelation) and the amplitude s of fluctuations in time series. According to these indicators, one can numerically assess the inertia of the processes of regulation of radial increment. Since the regulatory characteristics can only be correctly calculated for stationary time series, the series of the first differences of the radial increment were used for the calculations. The trees in the stands that were attacked by insects were characterized either by the absence of delay in the time series, or by sufficiently large values of the order of autocorrelation (n). Moreover, fluctuations in the current radial increment relative to the age trend were significantly greater in trees in damaged stands than in undamaged ones. The rate of growth recovery in trees damaged by insects depending on the regulatory characteristics of the time series of radial increment before the onset of damage was assessed. The obtained characteristics can be used to assess the risk of phyllophages' attacks on stands and the rate of restoration of stands damaged by insects.

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Держатели документа:
Russia Acad Sci, Forest Inst, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Reshetnev State Univ Sci & Technol, Krasnoyarsk 660037, Russia.

Доп.точки доступа:
Soukhovolsky, V. G.; Krasnoperova, P. A.; Palnikova, E. N.; Sviderskaya, I., V; Tarasova, O., V; Russian Federal Property Fund [15-04-01192-a, 17-29-05074 ofi-m]

/ V. G. Soukhovolsky, P. A. Krasnoperova, E. N. Pal'nikova [et al.] // Contemp. Probl. Ecol. - 2020. - Vol. 13, Is. 7. - P754-760, DOI 10.1134/S1995425520070124. - Cited References:42. - This study was supported by the Russian Foundation for Basic Research, project nos. 15-04-01192a and 17-29-05074ofi-m. . - ISSN 1995-4255. - ISSN 1995-4263РУБ Ecology

Аннотация: This study compares the 1945-2015 time series of the radial growth rate of pine Pinus sylvestris L. damaged by the 1974-1978 outbreak of the pine looper moth Bupalus piniarius L. and those of the undisturbed Krasnoturansk pine forest. It is proposed to employ regulatory characteristics of time series, including the order of autoregression (lag value n) and standard deviation of the amplitude of time series oscillation s (number of the first differences of radial growth s), to estimate differences between radial growth rates of trees in damaged and intact stands. These indicators allow for a quantitative assessment of the lag of the processes regulating the radial growth rate. Only the first differences of the series of radial growth rate are assessed, inasmuch as the regulatory characteristics can be correctly calculated only for the stationery time series. Trees exposed to insect outbreak either have no lag in the dynamics of the first differences of the series in the radial growth rate or they have high values of autoregression order n. At the same time, the oscillations of the current radial growth rate of damaged trees in relation to the age gradient are significantly larger than in undisturbed trees. We estimate the speed of the growth-rate recovery in damaged trees as a function of regulatory characteristics of time series of the radial growth rate before the damage. These data could be used to assess the pest hazard in the stands and recovery rates of forests damaged by insect outbreaks.

WOS

Держатели документа:
Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia.

Доп.точки доступа:
Soukhovolsky, V. G.; Krasnoperova, P. A.; Pal'nikova, E. N.; Sviderskaya, I., V; Tarasova, O., V; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [15-04-01192a, 17-29-05074ofi-m]