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.

scholarly journals Which Selective Logging Intensity is Most Suitable for the Maintenance of Soil Properties and the Promotion of Natural Regeneration in Highly Continental Scots Pine Forests?–Results 19 Years after Harvest Operations in Mongolia

Forests ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 141 ◽  
Author(s):  
Gerelbaatar Sukhbaatar ◽  
Baatarbileg Nachin ◽  
Battulga Purevragchaa ◽  
Batsaikhan Ganbaatar ◽  
Khishigjargal Mookhor ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Properties ◽  
Total Nitrogen ◽  
Scots Pine ◽  
Natural Regeneration ◽  
Pine Forest ◽  
Selective Logging ◽  
Forest Steppe ◽  
Scots Pine Forest

Scots pine (Pinus sylvestris L.) forests are one of the main vegetation types in the Asian forest-steppe zone. However, over-harvesting currently threatens the natural regeneration and sustainability of these forests. In this study, we examine the long-term effects of different logging intensities on soil properties and natural regeneration in a natural Scots pine forest in the West Khentii Mountains (Mongolia), 19 years after selective logging. Our experimental design included five treatments: clear cut (CC), treatments with high (HI), medium (MI), low (LI) intensities, and a reference parcel with no logging impact at all (RE). We described and quantified the harvest events and applied ANOVA and LMM modeling to analyze and explain the long-term impacts of the logging intensities on soil properties and natural regeneration. We found that logging has a significant negative influence on the physical and chemical properties of the soil because it increases soil compaction and reduces soil nutrients. The most critical impacts of logging were on soil bulk density, total porosity, organic matter, and total nitrogen and phosphorus. The LMM modeling showed that organic matter (OgM), total nitrogen (TN), available K (AK) and pH values are especially impacted by logging. Our study revealed that the values for all of these variables show a linear decrease with increasing selective logging intensity and have a level of significance of p < 0.05. Another finding of this study is that selective logging with low and medium intensities can promote natural regeneration of Scots pine to numbers above those of the reference site (RE). High intensity logging and clear-cuts, however, limit the regeneration of Scots pine, reduce overall seedling numbers (p < 0.05), and create conditions that are suitable only for the regeneration of deciduous tree species. This underlines the risk of Scots pine forest degradation, either by replacement by broad-leaf trees or by conversion into non-forest ecosystems.

scholarly journals Six years from passing bell to recovery: Habitat restoration of the threatened Chequered Blue Butterfly (Scolitantides orion) in SE Finland

2000 ◽  
Vol 11 (2) ◽  
pp. 113-117 ◽  
Author(s):  
Olli Marttila ◽  
Kimmo Saarinen ◽  
Pekka Marttila
Keyword(s):  
Scots Pine ◽  
Habitat Restoration ◽  
Marked Change ◽  
Pine Forest ◽  
Selective Removal ◽  
Local Extinction ◽  
Restoration Site ◽  
Short Period ◽  
Scots Pine Forest ◽  
Blue Butterfly

We restored the habitat of the vulnerable Chequered Blue Butterfly (Scolitantides orion Pallas). The population at the restoration site almost became extinct in the late 1980's due to overgrowth by Scots pine forest. The habitat was restored by selective removal of pines in 1990. The abundance of S. orion was estimated in 1990-1996 and 1998-1999, and the population was studied intensively over a short period in 1997. The butterfly recovered after some delay. The numbers of specimens were low during the first five years, but a marked change in 1996- 1999 indicated the presence of a persistent population. The habitat restoration most likely prevented the local extinction of S. orion.

Typology of the natural regeneration in a middle-aged Scots pine forest

1988 ◽  
Vol 53 ◽  
Author(s):  
C. De Schepper
Keyword(s):  
Scots Pine ◽  
Natural Regeneration ◽  
Free Field ◽  
Sandy Soils ◽  
Structural Basis ◽  
Pedunculate Oak ◽  
Pine Stands ◽  
Scots Pine Forest ◽  
Forest Practice ◽  
Scots Pine Stands

The  study describes the natural regeneration state of a forest on coarse sandy  soils. The natural regeneration was studied in three different ecological  conditions: in 30 to 60 year old Scots pine stands, in a 62 year old mixed  stand of pedunculate oak and red oak, and on the free field.     The analysis of the regeneration groups revealed that the first settler  maintained a dominant social position during the following years after the  settlement. The structural basis is consequently laid out early. This means  that the forest practice has to consider the very first phase of the  regeneration as determining for the following evolution of the regeneration  groups.

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
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