scholarly journals Corsican Pine (Pinus laricio Poiret) Stand Management: Medium and Long Lasting Effects of Thinning on Biomass Growth

Forests ◽  
2018 ◽  
Vol 9 (5) ◽  
pp. 257 ◽  
Author(s):  
Rodolfo Picchio ◽  
Rachele Venanzi ◽  
Francesco Latterini ◽  
Enrico Marchi ◽  
Andrea Laschi ◽  
...  
Keyword(s):  
Biomass Growth ◽  
Stand Management ◽  
Pinus Laricio

scholarly journals Forest Stand Management and Biomass Growth

Forests ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1253
Author(s):  
Angela Lo Monaco ◽  
Paolo Cantiani
Keyword(s):  
Forest Stand ◽  
Biomass Growth ◽  
Natural Systems ◽  
Stand Management

Forests are natural or semi-natural systems that can generate services and products that humans use directly or indirectly [...]

Investigation of culture conditions by Response Surface Methodology and kinetic modeling for exopolysaccharide production by Klebsiella oxytoca ICCF 419 strain, using lactose as substrate

2020 ◽  
Vol 25 (6) ◽  
pp. 2033-2044
Author(s):  
CATERINA TOMULESCU ◽  
◽  
MIŞU MOSCOVICI ◽  
ROXANA MĂDĂLINA STOICA ◽  
GABRIEL BUJOR ALBU ◽  
...  
Keyword(s):  
Citric Acid ◽  
Klebsiella Oxytoca ◽  
Fermentation Medium ◽  
Culture Conditions ◽  
Biomass Growth ◽  
Initial Value ◽  
Substrate Consumption ◽  
Polysaccharide Production ◽  
Crude Polysaccharide ◽  
Central Composite

The objective of this work was to optimize the bioprocess parameters, using Klebsiella oxytoca ICCF 419 to obtain an exopolysaccharide based on lactose as substrate. A kinetic study was employed and Logistic and Gompertz models were applied to describe the polysaccharide production, in relation with biomass growth and substrate consumption. The RSM methodology based on Central Composite Rotatable Design was used to evaluate and optimize the effect of lactose, corn extract, KH2PO4 and citric acid concentrations as independent variables on the polysaccharide production, biomass growth and substrate consumption as the response functions. The interaction effects and optimal parameters were obtained using Design Expert Software (version 9.0.6.2). The significance of the variables and their interactions was tested by means of ANOVA analysis with a 99% confidence level. The optimum culture conditions were determined and the model prediction was compared with experimental results. At an initial value of 23.45 for the C/N in the fermentation medium, the strain produces 17.41 g/L of crude polysaccharide and 2.53 g/L dry biomass. The EPS production was significantly influenced by lactose, corn extract and KH2PO4, while the citric acid had no influence. The biomass growth was influenced by the corn extract, KH2PO4 and citric acid.

Répartition et dynamique de la matière organique dans une forêt de Pinus laricio Poir.

1988 ◽  
Vol 14 (3) ◽  
pp. 17-29
Author(s):  
Salvatore Leonardi ◽  
Maurice Rapp ◽  
Virgilio La Rosa
Keyword(s):  
Pinus Laricio

Growth and management of mixed Pinus sylvestris - Quercus robur stands in Flanders, Belgium

1993 ◽  
Vol 58 ◽  
Author(s):  
D. Maddelein ◽  
J. Neirynck ◽  
G. Sioen
Keyword(s):  
Pinus Sylvestris ◽  
Natural Regeneration ◽  
Quercus Robur ◽  
Good Growth ◽  
Pedunculate Oak ◽  
Selection System ◽  
Management Options ◽  
Stand Management ◽  
Pine Stands

Mature  Scots pine (Pinus sylvestris  L.) stands are dominating large parts of the Flemish forest area. Broadleaved  species regenerate spontaneously under this pine canopy. This study studied  the growth and development of two planted pine stands with an older natural  regeneration, dominated by pedunculate oak (Quercus  robur L.), and discussed management options for  similar stands.     The results indicated a rather good growth of the stands, with current  annual increments of 5 m3.ha-1.yr-1. The pine overstorey is growing into valuable sawwood  dimensions, while the broadleaved understorey slowly grows into the  upperstorey. The quality of the regeneration is moderate but can be improved  by silvicultural measurements (pruning, early selection).     In both stands, an interesting (timber production, nature conservation)  admixture of secondary tree species is present in the regeneration. Stand  management is evolving from the classical clearcut system towards a  combination of a type of selection and group selection system.

scholarly journals A dynamic volume and biomass growth model system for even-aged downy birch stands in south-western Europe

2013 ◽  
Vol 87 (1) ◽  
pp. 165-176 ◽  
Author(s):  
E. Gomez-Garcia ◽  
F. Crecente-Campo ◽  
B. Tobin ◽  
M. Hawkins ◽  
M. Nieuwenhuis ◽  
...  
Keyword(s):  
Growth Model ◽  
Western Europe ◽  
Model System ◽  
Biomass Growth ◽  
Downy Birch

scholarly journals Digital Transformation of Forest Services in Finland—A Case Study for Improving Business Processes

Forests ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 781
Author(s):  
Ville Kankaanhuhta ◽  
Tuula Packalen ◽  
Kari Väätäinen
Keyword(s):  
Business Processes ◽  
Innovation Process ◽  
Single Type ◽  
Stand Management ◽  
Young Stand ◽  
Commercial Viability ◽  
Soil Preparation ◽  
Knowledge Intensive ◽  
Agile Software

This case study introduces an innovation and development concept for agile software tools for the improvement of the productivity and customer experience of forest services. This need was recognized in the context of the opening of forest data and the development of service platforms for a forest-based bioeconomy in Finland. The forest services that were studied covered a continuum from a single type of work, e.g., soil preparation and young stand management through timber procurement, to comprehensive forest property management services. The study concentrated on the needs of micro-, small, and medium-sized enterprises (SMEs), which provide either retail- or business to business (B2B) services as sub-contractors. In addition, the challenges and bottlenecks in service processes detected by other stakeholders were considered. The prevailing service processes were conceptually modelled in order to search for opportunities for improvements in business and ecosystem services, i.e., agile software concepts. For example, we examined whether it would be possible to create opportunities for flexible operational models for precision, resilience, and protection of valuable microsites in forests. These software concepts were developed and evaluated in co-operation with the stakeholders in a co-creative workshop. The technological feasibility and commercial viability of the concepts, as well as the desirability for the customer were considered. The results of this business development process—i.e., agile software concepts and their anticipated benefits—were provided for further evaluation. In addition to the practical implications of this kind of innovation process tested, the potential of these kinds of agile tools for the further development of knowledge-intensive service processes was further discussed.

Effect of Different Nutrient Components on Polysaccharide and Biomass Production from Fomitopsis pinicola Karst

2012 ◽  
Vol 503-504 ◽  
pp. 174-177
Author(s):  
Li Min Hao ◽  
Zheng Li ◽  
Ai Li Zhao ◽  
Wei Long Chen ◽  
Zi Tao Wang
Keyword(s):  
Biomass Production ◽  
Yeast Extract ◽  
Biomass Growth ◽  
Fomitopsis Pinicola ◽  
Potential Applications ◽  
Optimal Medium

The Fomitopsis pinicola Karst is a novel mushroom. Its exo-polysaccharide and biomass of F.pinicola Karst have widely potential applications. In this paper, effect of different nutrient components on exo-polysaccharide and biomass production was reported. The results revealed that the optimal medium for producing CEPS was (g/L): glucose 150, yeast extract 5, MgSO4•7H2O 0.8, KH2PO4 1.2. The optimal medium for biomass growth was (g/L): glucose 150, yeast extract 15, MgSO4•7H2O 0.6, KH2PO4 1.4.

scholarly journals Optimization of Synthetic Media Composition for Kluyveromyces marxianus Fed-Batch Cultivation

Fermentation ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 62
Author(s):  
Konstantins Dubencovs ◽  
Janis Liepins ◽  
Arturs Suleiko ◽  
Anastasija Suleiko ◽  
Reinis Vangravs ◽  
...  
Keyword(s):  
Kluyveromyces Marxianus ◽  
Reaction Medium ◽  
Value Added ◽  
Batch Cultivation ◽  
Batch Processes ◽  
Biomass Growth ◽  
High Cell ◽  
Media Composition ◽  
Fed Batch ◽  
Fed Batch Cultivation

The Kluyveromyces marxianus yeast recently has gained considerable attention due to its applicability in high-value-added product manufacturing. In order to intensify the biosynthesis rate of a target product, reaching high biomass concentrations in the reaction medium is mandatory. Fed-batch processes are an attractive and efficient way how to achieve high cell densities. However, depending on the physiology of the particular microbial strain, an optimal media composition should be used to avoid by-product synthesis and, subsequently, a decrease in overall process effi-ciency. Thus, the aim of the present study was to optimise the synthetic growth medium and feeding solution compositions (in terms of carbon, nitrogen, phosphorous, magnesium, and calcium concentrations) for high cell density K. marxianus fed‑batch cultivations. Additionally, the biomass yields from the vitamin mixture and other macro/microelements were identified. A model predictive control algorithm was successfully applied for a fed-batch cultivation control. Biomass growth and substrate consumption kinetics were compared with the mathematical model predictions. Finally, 2‑phenylethanol biosynthesis was induced and its productivity was estimated. The determined optimal macronutrient ratio for K. marxianus biomass growth was identified as C:N:P = 1:0.07:0.011. The maximal attained yeast biomass concentration was close to 70 g·L-1 and the 2-PE biosynthesis rate was 0.372 g·L−1·h−1, with a yield of 74% from 2-phenylalanine.

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