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

[Text] / H. . Santruckova [et al.] // Boreal Environ. Res. - 2010. - Vol. 15, Is. 3. - P357-369. - Cited References: 34. - The authors thank for support all persons kindly contributing this research, Keith Edwards for language correction, unknown reviewers for valuable comments and for financial support of EU project TCOS Siberia and project of MSM 600 766 5801. . - 13. - ISSN 1239-6095РУБ Environmental Sciences

Аннотация: Vertical and horizontal distributions of soil organic carbon, potential microbial activity and basic soil properties were studied in a boreal mixed forest (Central Forest Reserve, TVER region) to elucidate whether the soil CO(2)-efflux is related to basic soil properties that affect the C pool and activity. Soil cores (0-100 cm depth) were taken from two transects every 50 meters (44 points) immediately after completion of soil CO(2)-efflux measurements. Soil was separated into layers and moisture, bulk density, root density and bacterial counts were determined within one day after soil was taken. Microbial respiration, biomass, CN contents and pH were measured within few months. The variability in the soil CO(2)-efflux and microbial activity was mainly explained by soil bulk density. Results further indicate that laboratory measurements of microbial respiration can represent heterotrophic soil respiration of a distinctive ecosystem in natural conditions, if microbial respiration is measured after the effect of soil handling disappears.

WOS,
Scopus

Держатели документа:
[Santruckova, Hana
Kastovska, Eva
Liveckova, Miluse] Univ S Bohemia, Fac Sci, CZ-37005 Ceske Budejovice, Czech Republic
[Kozlov, Daniil] Lomonosov Moscow State Univ, Dept Geog, Moscow 119992, Russia
[Kurbatova, Julya
Tatarinov, Fedor] RAS, AN Severtsov Inst Ecol & Evolut, Moscow 119071, Russia
[Shibistova, Olga] VN Sukachev Forest Inst, Krasnoyarsk 660036, Russia
[Lloyd, Jon] Univ Leeds, Sch Geog, Earth & Biosphere Inst, Leeds LS2 9JT, W Yorkshire, England

Доп.точки доступа:
Santruckova, H...; Kastovska, E...; Kozlov, D...; Kurbatova, J...; Liveckova, M...; Shibistova, O...; Tatarinov, F...; Lloyd, J...

[Text] / V. L. Gavrikov, O. P. Sekretenko // Ecol. Model. - 1996. - Vol. 88, Is. 01.03.2013. - P183-193, DOI 10.1016/0304-3800(95)00087-9. - Cited References: 24 . - 11. - ISSN 0304-3800РУБ Ecology

Аннотация: The aim of the research was to create an algorithm simulating height-diameter relations in a pine tree subjected to various environmental impacts. The model is based on explicit description of light competition of the Scots pine twigs in three-dimensional space. The model is empirical and results from the measurements of correlations between shoots and buds in Scots pine that were made in the field. The development of the root system is not considered by the model. In simulation experiments it was demonstrated that: (i) the stand-grown pines have a higher height/diameter ratio than an open-grown model tree; (ii) an extremely high height/diameter ratio leads the tree to death; (iii) a tree suppressed for a sufficiently long time does not respond to better conditions; (iv) the diameter growth is much more sensitive to environmental change than the height growth. The model trees had the same growth parameters in every simulation. The simulated growth reactions are accounted for by self-adjustments of the model structure to the imposed conditions.

Полный текст,
WOS,
Scopus

Держатели документа:
RUSSIAN ACAD SCI,INST FOREST,KRASNOYARSK 660036,RUSSIA

Доп.точки доступа:
Gavrikov, V.L.; Sekretenko, O.P.

/ E. G. Shvetsov [et al.] // Environ. Res. Lett. - 2019. - Vol. 14, Is. 5. - Ст. 055001, DOI 10.1088/1748-9326/ab083d. - Cited References:83. - This research was supported by the Russian Foundation for Basic Research (grant #15-04-06567 and partially grant #18-41-242003 r_mk) and the Natural Environmental Research Council (grant #. NE/N009495/1). . - ISSN 1748-9326РУБ Environmental Sciences + Meteorology & Atmospheric Sciences

Аннотация: Wildfire is one of the main disturbances affecting forest dynamics, succession, and the carbon cycle in Siberian forests. The Zabaikal region in southern Siberia is characterized by one of the highest levels of fire activity in Russia. Time series of Landsat data and field measurements of the reforestation state were analyzed in order to estimate post-fire vegetation recovery. The results showed that the normalized burn ratio time series can be used to estimate forest recovery in the pine- and larch-dominated forests of the Zabaikal region. Multiple factors determine a forest's recovery rate after a wildfire, including fire severity, tree species characteristics, topography, hydrology, soil properties, and climate. Assessing these factors is important if we are to understand the effects of fire on forest succession and to implement sustainable forest management strategies. In this work we used the field data and Landsat data to estimate post-fire vegetation dynamics as a function of several environmental factors. These factors include fire severity, pre-fire forest state, topography, and positive surface temperature anomalies. A regression model showed that fire frequency, fire severity, and surface temperature anomalies are the primary factors, explaining about 58% of the variance in post-fire recovery. High frequency of fire and positive surface temperature anomalies hamper the post-fire reforestation process, while more severe burns are followed by higher recovery rates. Further studies are necessary to consider other important factors such as soil properties, moisture, and precipitation, for better explanation of post-fire vegetation recovery.

WOS,
Смотреть статью,
Scopus

Держатели документа:
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, 50-28 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian State Univ, 79-10 Svobodny Ave, Krasnoyarsk 660041, Russia.
Branch FBU VNIILM Ctr Forest Pyrol, Krupskaya Str 42, Krasnoyarsk 660062, Russia.
Academician MF Rechetnev Siberian State Univ Sci, 82 Mira, Krasnoyarsk 660049, Russia.
Univ Leicester, Ctr Landscape & Climate Res, Sch Geog Geol & Environm, LISEO, Univ Rd, Leicester LE1 7RH, Leics, England.

Доп.точки доступа:
Shvetsov, Evgeny G.; Kukayskaya, Elena A.; Buryak, Ludmila, V; Barrett, Kirsten; Russian Foundation for Basic Research [15-04-06567, 18-41-242003 r_mk]; Natural Environmental Research Council [NE/N009495/1]

/ V. L. Gavrikov, A. I. Fertikov, R. A. Sharafutdinov, E. A. Vaganov // Lesnoy Zh. - 2021. - Is. 6. - С. 24-37, DOI 10.37482/0536-1036-2021-6-24-37. - Cited References:26 . - ISSN 0536-1036РУБ Forestry

Аннотация: Distribution of chemical elements in tree rings bears important information on various biogeochemical processes. In order to achieve a reliable interpretation of the information, it is necessary to know the degree of variation in the content of chemical elements both at the level of the entire species and at the level of individual trees. The research aims to determine which chemical elements have a stable distribution in the trunks of a number of conifers: Siberian spruce (Picea obovata Ledeb.), Scots pine (Pinus sylvestris L.), Siberian larch (Larix sibirica Ledeb.), and Siberian pine (Pinus sibirica Du Tour). The data for the analysis were obtained on the basis of the long-term experiment in forest growing. The experimental site was laid out in 1971-1972 in the vicinity of Krasnoyarsk by the staff of the Sukachev Institute of Forest of the Siberian Branch of the Russian Academy of Sciences. Before planting the seedlings, the soil ground was mechanically levelled, and thus, sufficiently equal growth conditions were created for all plantings. Cores with a diameter of 12 mm were sampled from three normally developing trees of each species and analyzed using modern X-ray fluorescence methods. Content relative values of elements (counts) were obtained with the Itrax Multiscanner (COX Analytical Systems). The content of elements in the tree rings was characterized by the concentration and reserve of elements. Concentration was calculated as the number of counts per 1 mm(2) of the ring area; reserve was calculated as the number of counts over the entire ring area. Each of these variables was defined by the parameters of linear slope in the calendar year series and the standard deviation. The cluster analysis was performed in the 4-dimensional space of the obtained parameters. This allowed determining whether the series of element distributions from different trees and species are grouped. Three elements (Ca, Co, and P) show high stability of distribution parameters in tree rings with no regard to tree species. A number of other elements (Mn, Pb, Cl, Cr, Ni, Sr, and W) are stably grouped depending on the species. The results of the research enable to focus on the study of the elements stably distributed in the conifer trunks.

WOS

Держатели документа:
Siberian Fed Univ, Prosp Svobodnyy 79, Krasnoyarsk 660041, Russia.
Sukachev Inst Forest SB RAS, Akademgorodok 50-28, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Gavrikov, Vladimir L.; Fertikov, Alexey, I; Sharafutdinov, Ruslan A.; Vaganov, Evgenii A.