Carbon and water exchanges of regenerating forests in central Siberia

Meroni, Michele; Mollicone, Danilo; Belelli, Luca; Manca, Giovanni; Rosellini, Stefano; Stivanello, Samuele; Tirone, G.; Zompanti, R; Tchebakova, N. M.; Schulze, E. D.; Валентини, Р.

doi:10.1016/s0378-1127(02)00302-x

Cited by 9 publications

(3 citation statements)

References 10 publications

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“…However, studies dedicated to heat and radiative fluxes investigation over ATR, especially during last decades, do not provide complete information for the territory, only for local regions (Zotino, Yakutsk) and these studies are connected with solution of specific problems (Meroni et al, 2002;Tchebakova et al, 2002), for the regions of the North and wetlands (Meroni et al, 2002;Iwahana et al, 2005;Boike et al, 2008).…”

Section: E V Kharyutkina Et Al: the Variability Of Radiative Balanmentioning

confidence: 99%

The variability of radiative balance elements and air temperature over the Asian region of Russia

2012

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Abstract. The variability of spatial-temporal distribution of temperature and heat balance elements is investigated for the Asian territory of Russia (45-80 • N, 60-180 • E) using JRA-25, NCEP/DOE AMIP-II reanalysis data and observational data for the period of global warming 1979-2008. It is shown that temperature trend over the territory is 1.4 • C for the period under study according to reanalysis data. Since the beginning of 90s of 20th century the increase of back earth-atmosphere shortwave radiation is observed. Such tendency is in conformity with the cloud cover distribution and downward shortwave radiation at the surface. Regression model describing temperature variability with variability of heat balance elements was presented. We conclude that possible applications for the model include the convenient estimate of temperature variability according to reanalysis data.

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Section: E V Kharyutkina Et Al: the Variability Of Radiative Balanmentioning

confidence: 99%

The variability of radiative balance elements and air temperature over the Asian region of Russia

2012

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“…The effect of the length of post-fire succession on SR dynamics has been studied in Canada [20,21], USA (Alaska) [18,22,23], Estonia [24,25], and Russia [2,[26][27][28][29]. Studies on the impact of forest fires on SR in northern, arctic, and subarctic ecosystems, which were mainly carried out during summer field investigations, showed that forests newly affected by fire are C sources, whereas old forests recovered after fires are C sinks [22,[30][31][32] or are almost C-neutral [33] during the growing season. Studies have assessed the spatial and temporal variation in SR and associated parameters, such as changes in soil temperature, soil water content, albedo, heat-modified soil organic matter composition, and autotrophic and heterotrophic activity [34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Age-Dependent Changes in Soil Respiration and Associated Parameters in Siberian Permafrost Larch Stands Affected by Wildfire

Masyagina

Евграфова

Menyailo

et al. 2021

Forests

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The observed high spatial variation in soil respiration (SR) and associated parameters emphasized the importance of SR heterogeneity at high latitudes and the involvement of many factors in its regulation, especially within fire-affected areas. The problem of estimating CO2 emissions during post-fire recovery in high-latitude ecosystems addresses the mutual influence of wildfires and climate change on the C cycle. Despite its importance, especially in permafrost regions because of their vulnerability, the mutual influence of these factors on CO2 dynamics has rarely been studied. Thus, we aimed to understand the dynamics of soil respiration (SR) in wildfire-affected larch recovery successions. We analyzed 16-year data (1995–2010) on SR and associated soil, biological, and environmental parameters obtained during several field studies in larch stands of different ages (0–276 years) in the Krasnoyarsk region (Russia). We observed a high variation in SR and related parameters among the study sites. SR varied from 1.77 ± 1.18 (mean ± SD) µmol CO2 m−2 s−1 in the 0–10-year-old group to 5.18 ± 2.70 µmol CO2 m−2 s−1 in the 150–276-year-old group. We found a significant increasing trend in SR in the 88–141-year old group during the study period, which was related to the significant decrease in soil water content due to the shortage of precipitation during the growing season. We observed a high spatial variation in SR, which was primarily regulated by biological and environmental factors. Different parameters were the main contributors to SR in each group, an SR was significantly affected by the inter-relationships between the studied parameters. The obtained results can be incorporated into the existing SR databases, which can allow their use in the construction and validation of C transport models as well as in monitoring global fluctuations in the C cycle in response to climate change.

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“…Some post-disturbance dynamics studies in boreal forests based on field surveys have been carried out with diverse purposes: (1) studying the effects of fire behaviour on regeneration (Furyaev et al 2001, Arseneault 2001, Babintseva and Titova 1996, Schimmel and Granström 1996, (2) analysing carbon exchanges of regenerating forests (Meroni et al 2002, Valentini et al 2000, (3) investigating forest composition (Johnstone et al 2004, De Grandpre et al 2000, Bergeron and Dansereau 1993 and (4) measuring vegetation diversity (Peltzer et al 2000, Fortin et al 1999. However, fires in the boreal region are subject to large annual fluctuations which are associated with weather patterns such as low precipitation (Jupp et al 2006) and high temperature.…”

Section: Introductionmentioning

confidence: 99%

Studying the change in fAPAR after forest fires in Siberia using MODIS

Cuevas-González

Gerard

Balzter

et al. 2008

International Journal of Remote Sensing

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Disturbance events such as fire have major effects on forest dynamics, succession and the carbon cycle in the boreal biome. This paper focuses on establishing whether characteristic spatio-temporal patterns of the fraction of Absorbed Photosynthetically Active Radiation (fAPAR) occur in the initial two years after a fire event in Siberian boreal forests. Time-series of MODIS fAPAR were used to study post-fire dynamics during the year of the fire and the following two years. Three forest types (evergreen needle-leaf, deciduous needle-leaf and deciduous broadleaf) grouped in three latitudinal regions, ranging from 51° N to 65° N, were studied by analysing a sample of fourteen burned areas. For each of the burned areas an adjacent unburned control plot was selected with the aim of separating inter-annual variations caused by climate from changes in fAPAR behaviour due to a burn. The results suggest that (i) the forest types exhibit characteristic fAPAR change trajectories shortly after the fire, (ii) the differences in the fAPAR trajectories are related to the forest type, (iii) fAPAR changes are not significantly different among the latitudinal regions, and (iv) the limited temporal variability observed among the three years of observations indicates that fAPAR varies very little in the initial years after a fire event.

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Carbon and water exchanges of regenerating forests in central Siberia

Cited by 9 publications

References 10 publications

The variability of radiative balance elements and air temperature over the Asian region of Russia

The variability of radiative balance elements and air temperature over the Asian region of Russia

Age-Dependent Changes in Soil Respiration and Associated Parameters in Siberian Permafrost Larch Stands Affected by Wildfire

Studying the change in fAPAR after forest fires in Siberia using MODIS

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