scholarly journals THE EFFECT OF SOIL CONDITIONS ON GROWTH AND PARAMETERS OF THE MINERAL AND WATER METABOLISM IN SCOTS PINE IN A MIDDLE-TAIGA LICHEN-TYPE PINE FOREST

2020 ◽  
pp. 113
Author(s):  
Татьяна Аркадьевна Сазонова ◽  
Владислава Борисовна Придача ◽  
Tatiana Sazonova ◽  
Vladislava Pridacha
Keyword(s):  
Scots Pine ◽  
Pine Forest ◽  
Middle Taiga ◽  
Soil Conditions ◽  
Water Metabolism

scholarly journals Anatomical and Morphological Features of Scots Pine Heartwood Formation in Two Forest Types in the Middle Taiga Subzone

Forests ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 91
Author(s):  
Tatiana V. Tarelkina ◽  
Natalia A. Galibina ◽  
Sergei A. Moshnikov ◽  
Kseniya M. Nikerova ◽  
Elena V. Moshkina ◽  
...  
Keyword(s):  
Transition Zone ◽  
Scots Pine ◽  
Parenchyma Cell ◽  
Ring Width ◽  
Pine Forest ◽  
Middle Taiga ◽  
Forest Types ◽  
Heartwood Formation ◽  
Middle Taiga Subzone ◽  
Wide Range

Currently, there is no consensus on how growing conditions affect the heartwood formation in Scots pine. Comparing the results obtained by different authors is difficult due to methodology differences and poor descriptions of the objects used. We selected two sample plots in (1) a blueberry pine forest on nutrient-rich and moist soil and (2) a lichen pine forest on nutrient-poor and dry soil and performed their detailed characterization. The sample plots were located 22 km apart in the middle taiga subzone (Karelia Republic, northwest Russia). In each sample plot, we selected five dominant trees (model trees), from which we took cores at different trunk heights (0.3, 1.5, 4.5, 7.5 and 10.5 m). The cores were treated with 2,6-dichlorophenolindophenol to identify the heartwood zone. Additionally, samples were taken to study the structural features of the transition zone between sapwood and heartwood. In both forest types, the number of heartwood rings depended on the cambium age, and the patterns of parenchyma cell death did not differ in the transition zone. These facts point to a predominantly internal regulation of the heartwood formation in Scots pine. The heartwood radius and its proportion on the cross-sections were significantly higher in the blueberry pine forest than in the lichen pine forest, despite the relative values of the annual ring width. Further research is needed to develop successful Scots pine heartwood width models under a wide range of conditions.

Analysis of natural regeneration of Scots pine forest in the high Campine after a fire

1988 ◽  
Vol 53 ◽  
Author(s):  
N. Lust
Keyword(s):  
Scots Pine ◽  
Natural Regeneration ◽  
Fire Regime ◽  
Pine Forest ◽  
Seed Supply ◽  
Regeneration Period ◽  
The Social ◽  
Short Period ◽  
Fire Area ◽  
Scots Pine Forest

The  study deals with the spontaneous resettlement of a fire area, after  destruction of 600 ha Scots pine forest. The following items have been  examined in particular: the composition of the tree species, the duration of  the regeneration period, the influence of the parent stand, the exposition,  the slope, the treatment, the fire regime and the social differentiation.      The resettlement took place very quickly and over a very short period.  Birch and Scots pine take up 95 % of the stem number. The regeneration result  is precarious, yet mostly good. The parent stand is favourable both to seed  supply and to microclimate, but only over a short distance. The Scots pine  prefers more open and dry areas, whereas birch needs more humidity.     Practice has shown that natural regeneration of Scots pine stands is  possible. The forest treatment, however, is very important. It determines not  only the immediate result of the regeneration, but also the composition and  the structure of the future stand.

Exchange of trace gases between soils and the atmosphere in Scots pine forest ecosystems of the northeastern German lowlands

2002 ◽  
Vol 167 (1-3) ◽  
pp. 123-134 ◽  
Author(s):  
K Butterbach-Bahl ◽  
L Breuer ◽  
R Gasche ◽  
G Willibald ◽  
H Papen
Keyword(s):  
Scots Pine ◽  
Forest Ecosystems ◽  
Trace Gases ◽  
Pine Forest ◽  
Scots Pine Forest

Impacts of summer water limitation on the carbon balance of a Scots pine forest in the southern upper Rhine plain

2008 ◽  
Vol 148 (11) ◽  
pp. 1815-1826 ◽  
Author(s):  
Jutta Holst ◽  
Romain Barnard ◽  
Elke Brandes ◽  
Nina Buchmann ◽  
Arthur Gessler ◽  
...  
Keyword(s):  
Scots Pine ◽  
Carbon Balance ◽  
Pine Forest ◽  
Water Limitation ◽  
Scots Pine Forest ◽  
Upper Rhine

Methodological development for combined analysis of S and 35S in a Scots pine forest study

1992 ◽  
Vol 23 (13-14) ◽  
pp. 1575-1589 ◽  
Author(s):  
A. P. Rowland ◽  
A. F. Harrison ◽  
V. H. Kennedy ◽  
J. N. Cape
Keyword(s):  
Scots Pine ◽  
Pine Forest ◽  
Methodological Development ◽  
Combined Analysis ◽  
Scots Pine Forest

Soil Solution Response to Nitrogen and Magnesium Application in a Scots Pine Forest

2001 ◽  
Vol 65 (6) ◽  
pp. 1812-1823 ◽  
Author(s):  
Live S. Vestgarden ◽  
Gunnar Abrahamsen ◽  
Arne O. Stuanes
Keyword(s):  
Soil Solution ◽  
Scots Pine ◽  
Pine Forest ◽  
Scots Pine Forest

scholarly journals Modelling short-term variability in carbon and water exchange in a temperate Scots pine forest

2015 ◽  
Vol 6 (2) ◽  
pp. 485-503 ◽  
Author(s):  
M. H. Vermeulen ◽  
B. J. Kruijt ◽  
T. Hickler ◽  
P. Kabat
Keyword(s):  
Water Uptake ◽  
Scots Pine ◽  
Water Exchange ◽  
Carbon Sink ◽  
Pine Forest ◽  
Temperature Threshold ◽  
Water Fluxes ◽  
Local Data ◽  
Deep Soil ◽  
Scots Pine Forest

Abstract. The vegetation–atmosphere carbon and water exchange at one particular site can strongly vary from year to year, and understanding this interannual variability in carbon and water exchange (IAVcw) is a critical factor in projecting future ecosystem changes. However, the mechanisms driving this IAVcw are not well understood. We used data on carbon and water fluxes from a multi-year eddy covariance study (1997–2009) in a Dutch Scots pine forest and forced a process-based ecosystem model (Lund–Potsdam–Jena General Ecosystem Simulator; LPJ-GUESS) with local data to, firstly, test whether the model can explain IAVcw and seasonal carbon and water exchange from direct environmental factors only. Initial model runs showed low correlations with estimated annual gross primary productivity (GPP) and annual actual evapotranspiration (AET), while monthly and daily fluxes showed high correlations. The model underestimated GPP and AET during winter and drought events. Secondly, we adapted the temperature inhibition function of photosynthesis to account for the observation that at this particular site, trees continue to assimilate at very low atmospheric temperatures (up to daily averages of −10 °C), resulting in a net carbon sink in winter. While we were able to improve daily and monthly simulations during winter by lowering the modelled minimum temperature threshold for photosynthesis, this did not increase explained IAVcw at the site. Thirdly, we implemented three alternative hypotheses concerning water uptake by plants in order to test which one best corresponds with the data. In particular, we analyse the effects during the 2003 heatwave. These simulations revealed a strong sensitivity of the modelled fluxes during dry and warm conditions, but no single formulation was consistently superior in reproducing the data for all timescales and the overall model–data match for IAVcw could not be improved. Most probably access to deep soil water leads to higher AET and GPP simulated during the heatwave of 2003. We conclude that photosynthesis at lower temperatures than assumed in most models can be important for winter carbon and water fluxes in pine forests. Furthermore, details of the model representations of water uptake, which are often overlooked, need further attention, and deep water access should be treated explicitly.

scholarly journals Plasticity of Fine-Root Traits Under Long-Term Irrigation of a Water-Limited Scots Pine Forest

2019 ◽  
Vol 10 ◽  
Author(s):  
Ivano Brunner ◽  
Claude Herzog ◽  
Lucía Galiano ◽  
Arthur Gessler
Keyword(s):  
Scots Pine ◽  
Fine Root ◽  
Root Traits ◽  
Pine Forest ◽  
Scots Pine Forest

scholarly journals Fuel characteristics, loads and consumption in Scots pine forests of central Siberia

2019 ◽  
Vol 31 (6) ◽  
pp. 2507-2524
Author(s):  
Galina A. Ivanova ◽  
Elena A. Kukavskaya ◽  
Valery A. Ivanov ◽  
Susan G. Conard ◽  
Douglas J. McRae
Keyword(s):  
Scots Pine ◽  
Southern Taiga ◽  
Pine Forest ◽  
Ground Vegetation ◽  
Fuel Loading ◽  
Fire Weather Index ◽  
Central Siberia ◽  
Feather Moss ◽  
Fuel Characteristics ◽  
The Impact

Abstract Forest fuel investigations in central and southern Siberian taiga of Scots pine forest stands dominated by lichen and feather moss ground vegetation cover revealed that total aboveground biomass varied from 13.1 to 21.0 kg/m2. Stand biomass was higher in plots in the southern taiga, while ground fuel loads were higher in the central taiga. We developed equations for fuel biomass (both aerial and ground) that could be applicable to similar pine forest sites of Central Siberia. Fuel loading variability found among plots is related to the impact and recovery time since the last wildfire and the mosaic distribution of living vegetation. Fuel consumption due to surface fires of low to high-intensities ranged from 0.95 to 3.08 kg/m2, that is, 18–74% from prefire values. The total amount of fuels available to burn in case of fire was up to 4.5–6.5 kg/m2. Moisture content of fuels (litter, lichen, feather moss) was related to weather conditions characterized by the Russian Fire Danger Index (PV-1) and FWI code of the Canadian Forest Fire Weather Index System. The data obtained provide a strong foundation for understanding and modeling fire behavior, emissions, and fire effects on ecosystem processes and carbon stocks and could be used to improve existing global and regional models that incorporate biomass and fuel characteristics.

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