scholarly journals Aboveground biomass in a beech forest and a Scots pine plantation in the Sierra de la Demanda area of northern Spain

1997 ◽  
Vol 54 (3) ◽  
pp. 261-269 ◽  
Author(s):  
I Santa Regina ◽  
T Tarazona ◽  
R Calvo
Keyword(s):  
Scots Pine ◽  
Aboveground Biomass ◽  
Beech Forest ◽  
Pine Plantation ◽  
Northern Spain

scholarly journals A Comparative Study of the Pathogenicity of Fusarium circinatum and other Fusarium Species in Polish Provenances of P. sylvestris L.

Forests ◽  
2018 ◽  
Vol 9 (9) ◽  
pp. 560 ◽  
Author(s):  
Kateryna Davydenko ◽  
Justyna Nowakowska ◽  
Tomasz Kaluski ◽  
Magdalena Gawlak ◽  
Katarzyna Sadowska ◽  
...  
Keyword(s):  
Scots Pine ◽  
Fungal Pathogen ◽  
Fusarium Species ◽  
Pitch Canker ◽  
Fusarium Circinatum ◽  
Northern Spain ◽  
Fusarium Spp ◽  
Pine Seedlings ◽  
Unintentional Introduction ◽  
Different Levels

The fungal pathogen Fusarium circinatum is the causal agent of Pine Pitch Canker (PPC), a disease which seriously affects different species of pine in forests and nurseries worldwide. In Europe, the fungus affects pines in northern Spain and Portugal, and it has also been detected in France and Italy. Here, we report the findings of the first trial investigating the susceptibility of Polish provenances of Scots pine, Pinus sylvestris L., to infection by F. circinatum. In a greenhouse experiment, 16 Polish provenances of Scots pine were artificially inoculated with F. circinatum and with six other Fusarium species known to infect pine seedlings in nurseries. All pines proved highly susceptible to PPC and displayed different levels of susceptibility to the other Fusarium spp. tested. The findings obtained indicate the potentially strong threat of establishment of an invasive pathogen such as F. circinatum following unintentional introduction into Poland.

Some metals in aboveground biomass of Scots pine in Lithuania

2014 ◽  
Vol 66 ◽  
pp. 434-441 ◽  
Author(s):  
Iveta Varnagirytė-Kabašinskienė ◽  
Kęstutis Armolaitis ◽  
Inge Stupak ◽  
Mikko Kukkola ◽  
Józef Wójcik ◽  
...  
Keyword(s):  
Scots Pine ◽  
Aboveground Biomass

scholarly journals Energy potential of main forest-forming species of stands in the Northern Steppe, Ukraine

2018 ◽  
Vol 64 (No. 1) ◽  
pp. 25-32
Author(s):  
Lovynska Viktoriia ◽  
Sytnyk Svitlana ◽  
Gritsan Yurii
Keyword(s):  
Scots Pine ◽  
Aboveground Biomass ◽  
Carbon Allocation ◽  
Black Locust ◽  
Local Level ◽  
Age Groups ◽  
State Agency ◽  
Forest Stands ◽  
Energy Potential ◽  
Biomass Components

The study evaluated the energy potential of Scots pine and black locust stands within the Northern Steppe of Ukraine, in forest plantations subordinated to the State Agency of Forest Resources (Ukraine). This study defined general values of aboveground biomass components per age-class structure in the forest stands. Allocated carbon was calculated using the biomass components by age groups as follows: stem, branches and leaves (needles). Contribution of different age groups to carbon allocation was investigated. A key role of stem wood in the process of carbon allocation in the forest stands was shown. It was found that the maximum carbon budget was accumulated in stands of both forest-forming species aged 41–60 years. The models are made on a dependence of carbon allocation in the different components of aboveground biomass by age. Results of energy content in the aboveground biomass were presented in Scots pine and black locust stands within the surveyed area. The study has shown that the energy potential of carbon accumulated in the biomass of Scots pine stands amounted to 40.31 PJ, and that of black locust stands was 32.04 PJ. Development of forest ecosystems in the Steppe zone of Ukraine can result in the optimization of abiotic conditions on a local level under the influence of the global climate changes.

Edible sporocarp production by age class in a Scots pine stand in Northern Spain

Mycorrhiza ◽  
2011 ◽  
Vol 22 (3) ◽  
pp. 167-174 ◽  
Author(s):  
Fernando Martínez-Peña ◽  
Teresa Ágreda ◽  
Beatriz Águeda ◽  
Pedro Ortega-Martínez ◽  
Luz Marina Fernández-Toirán
Keyword(s):  
Scots Pine ◽  
Northern Spain ◽  
Age Class

scholarly journals The HartX-synthesis: An experimental approach to water and carbon exchange of a Scots pine plantation

1996 ◽  
Vol 53 (1-3) ◽  
pp. 173-183 ◽  
Author(s):  
Ch. Bernhofer ◽  
L. W. Gay ◽  
A. Granier ◽  
U. Joss ◽  
A. Kessler ◽  
...  
Keyword(s):  
Scots Pine ◽  
Experimental Approach ◽  
Carbon Exchange ◽  
Pine Plantation

scholarly journals Effect of Species Complementarity on Financial Return in Mixed Stands of European Beech and Scots Pine in Northern Spain

Forests ◽  
2018 ◽  
Vol 9 (9) ◽  
pp. 559 ◽  
Author(s):  
Fernando García-Robredo
Keyword(s):  
Scots Pine ◽  
European Beech ◽  
Growth And Yield ◽  
Joint Probability Distribution ◽  
Northern Spain ◽  
Mixed Species ◽  
Mixed Stands ◽  
Financial Return ◽  
Economic Implications ◽  
Species Proportion

The research on mixed-species forestry has rapidly increased in recent decades because there is a growing interest in these types of stands for environmental reasons. Their positive influence on ecosystem biodiversity, stability and resilience, as well as their role in the new challenge brought up by the adaptation to global change, have been the object of many research works. However, the economic implications of mixed-species forest management have not deserved the same attention. The objective of this work is to study the effect of species interactions on productivity, and to economically assess this effect. This research is focused on the analysis of financial return and risk in even aged mixed stands of Pinus sylvestris and Fagus sylvatica in Northern Spain. Growth and yield projections for monospecific and mixed stands of Scots pine and European beech were made by means of a previous model developed from a set of the Spanish National Forest Inventory plots in the region of Navarre. Data from yield tables for both species were used. The effect of species proportion on total stand yield was assessed and transgressive overyielding was found for some mixing ratios. A data series on average stumpage price for both species in Spain over a 29-year period was compiled and the joint probability distribution of price data was used to generate 500 price scenarios. Different management alternatives based on species proportion and rotation age were considered and evaluated in terms of profitability and risk. Some management recommendations can be derived from the results obtained, which point at an optimum mixing ratio from 30% to 40% Scots pine and 70% to 60% European beech.

Effects of thinning and nitrogen fertilization on growth of Scots pine trees: total annual biomass increment, needle efficiency, and aboveground allocation of biomass increment

1993 ◽  
Vol 23 (8) ◽  
pp. 1639-1644 ◽  
Author(s):  
Erik Valinger
Keyword(s):  
Scots Pine ◽  
Nitrogen Fertilization ◽  
Aboveground Biomass ◽  
Dry Matter ◽  
Dry Matter Production ◽  
Allocation Pattern ◽  
Biomass Increment ◽  
Matter Production ◽  
Aboveground Production ◽  
Annual Biomass

The effects of thinning and nitrogen fertilization, singly and in combination, on growth of 45-year-old Scots pine (Pinussylvestris L.) trees in northern Sweden were examined for 5 years after treatment. Annual examination of trees determined height growth, diameter growth, crown development, annual biomass increment, aboveground biomass allocation, and needle efficiency in relation to treatments. Nitrogen fertilization increased total dry matter production. The combination of thinning and nitrogen fertilization increased total dry matter production per tree more than the additive effects of thinning and nitrogen fertilization singly. Dry matter production per hectare was increased by nitrogen fertilization. Needle efficiency, i.e., total annual aboveground biomass production per unit of needle mass, was also increased by nitrogen fertilization. The increased aboveground production after nitrogen fertilization resulted from both an increase in biomass of needles and from the increased needle efficiency. The allocation pattern indicated that an increased production of stemwood was a result of a larger biomass of needles. An increase in cone production of the control trees was associated with a decrease in needle efficiency.

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