Assess how resin tapping can induce changes in the physical, chemical, and mechanical wood properties of the trees, thus conditioning its technological suitability for certain uses and, consequently, its commercial value.
Case studies tagged with resinous forests
The association "Gemme la forêt d'Aquitaine" was founded on 7 March 2014. Its aim is to revive resin extraction in the Landes de Gascogne forest. It is with this objective in mind that the members of the association have decided to come together in order to pool knowledge, research and initiatives across the entire value chain: from the forest to consumer expectations through processing.
In order to ensure the sustainability of the exploitation of pine resin and to guarantee that it is guided by good management practices - promoting the vitality of pine forests and forest protection practices, contributing with relevant annual revenues - it was considered necessary, in Portugal, to define a legal regime, simplifying and concentrating all the rules in a single legal document. This legislation is an essential knowledge tool for authorities and economic agents, focusing on the production, exploitation and dynamics of resin from the forest to the industrial processing unit.
Within the framework of the European project SustForest Plus for the revival of gemmaging in Europe, the Centre Régional de la Propriété Forestière de Nouvelle-Aquitaine has commissioned the technological institute Forest Cellulose Wood and Furniture to analyse the impact of resin extraction on the technological characteristics of pine wood (mechanical properties, drying, aesthetics, etc).
The aim of the EVAFORA study is to simulate the behaviour of Pinus pinaster stands in the face of climate change by 2100 by analysing wood volume production and carbon stock data. Climatic variables (temperature increase, precipitation decrease,...) as well as the effects of silvicultural operations are integrated thanks to the GO + model. In the long term, will maritime pine remain the species best adapted to the new climatic conditions in the Landes de Gascogne massif? What silvicultural management will ensure greater stand resilience to climate change?
The standardisation study facilitates the inclusion of wood from resin tapped pines in the Spanish standard UNE 56544 (Visual classification of sawn wood for structural use. Coniferous wood), in order to favour its use and marketing as structural wood.
Simultaneously, the study compares the physical-mechanical properties of resinated Pinus pinaster wood against non-resin wood under the same normative parameters (UNE 56544), so that the technical buyer can evaluate which product is the most suitable for the intended application.
The objective of this project is to characterize the links between the production of maritime pine resin and the properties of the station. The program is particularly interested in the influence of soil (rather than climatic variations).
The experiment is conducted on the three types of stations that dominate in the Landes: dry heath, mesophilic heath and wet heath The results could make it possible to identify the most productive and therefore more interesting areas for the resin tapper.
The objective is to present the different initiatives that exist at the national level in Spain to characterize resin production and the potential of this resource. These initiatives, framed within the Spanish Forest Statistics defined in the Spanish Forest Law 43/2003, include both production statistics and characterization of the forest resources that either produce or could potentially produce resin.
The main objective of the present investigation is to explore the knowledge and the best practices of resin extraction technics in rural areas and marginal environment in order to promote the live condition of the population in these different regions by providing secure incomes and good working conditions. This could lead to the best evaluation of the good performance of the three most important pine species in North-western of Tunisia to resin extraction.
In Portugal, traditionally, the maritime pine is the species exploited to obtain resin. The silvicultural models used assume timber as the main product and resin as the secondary product, this being a periodic and annual source of income for the owner. The description of silvicultural models that make timber and resin exploitation compatible is essential and should be based on knowledge.
The valorisation of local natural resin in high added value niche markets is a pillar of the French strategy for the revival of the sector. Local natural resin has many advantages over competing products: better quality, generates local jobs, enhances the value of the local forest resource, has a lower environmental impact, etc. These advantages are compatible with the markets sought after but they must be recognised. Can a label allow the local natural resin to stand out from the competition?
The objective of the project is to provide preliminary information, both bibliographic and ethnological, chemical, genomic, biochemical, technical and economic, in order to assess the relevance of restarting the resin extraction of forest species other than maritime pine to supply the growing societal demand for terpene biomolecules.
The pine forests on the sandy plains of inner Spain represent a singular habitat and ecosystem in very poor site conditions. In addition to economic revenue from sustainable biological resources, resin tapping provides other ecological and social benefits from these forests. The present study, resulting from the SUDOE project SustForest, analyses the inclusion of these factors in the assessment of resin resources.
The objective of this document is to highlight the importance of different initiatives, techniques and tools that have been presented by different organizations, both public and private, through the different transfer events that have taken place within the INCREDIBLE project. The aim is to provide a global vision of the different fields to explore in the resin sector.
Researchers and forest managers interested in the study of the resin resource have difficulties in locating and accessing experimental data generated in previous projects.
This circumstance means the loss of precious research and management resources and the experimental data, obtained at the cost of significant technical and economic effort.
SustForest Resin Lab is a platform to share experimental and management data, facilitating both the offer of such data, as well as access to data generated by other agents and the possibility to request its use.
The aim of the project is to develop an industrially producible bio-sourced varnish based on gum rosin and linseed oil, inspired by the ancient know-how of the violin maker Antonio Stradivari (1644-1737). The difficulty is to meet the specifications of an industrial manufacture while achieving high performance of the varnish.
After harvesting, the resin takes the form of a homogeneous mixture. Its distillation makes it possible to obtain two products: rosin and turpentine oil. The objective of extraction is to isolate and sample these compounds accurately. In other words, it is a question of having the finest possible selectivity. The second objective is not to alter the molecules and thus take full advantage of its qualities.
Some aspects contribute to the increase of resin tapping costs and, hence, to the reduction of resin yield, namely: the limitation on the diameter of the trees to be tapped imposed by the Portuguese legislation; low stand densities; the necessary control of understory vegetation. Hence, it is essential to evaluate if and how some pine forest management parameters affect the total production of pine resin so it can be increased through silvicultural practices and, thus, compensate for the rise in some costs associated with the resin activity.
The exploitation of pine forests in Tunisia which covered up to 50% of the total forest area could contribute and generate additional income sources for forest populations. Until now, the resin extraction knowledge was very limited and outdated. In the present study, the assessment of the biological performance of the resin was the main objective in order to detect the antioxidant activity of three pine species in the Tunisian forest.
Quantify the carbon footprint of different Alepo Pine forestry scenarios (biomass and soil capture and wood products storage) in order to compare in terms of climate change mitigation.
Identify amongst the favourable forest management practices those that:
- Boost management,
- Are geared towards forest quality,
- Minimize risks,
- Ultimately allow Mediterranean forest management sector development participating the rise of the carbon market.
The study compares different formulations based on natural raw materials for plastics production and demonstrates the important role that natural resin derivatives can play in the improvement of biobased and/or biodegradable plastics performance, as an alternative to those derived from petroleum.
The final objective is to provide consumers with biodegradable plastic material of excellent technical qualities for the production of packaging and applications in construction, automotive, electronics or agriculture, in a context of environmental and economic sustainability.
Sometimes, the profitability of a natural resource use depends more on the business model and the entrepreneurial culture on which its exploitation is based, than on productivity factors or technological development associated with the use itself.
An innovative business success case, linked to the natural resin extraction activity, such as Pinaster Servicios Medioambientales, can serve as a reference for private entrepreneurs and public decision-makers and administrators to develop and support efficient business strategies that integrate the resin activity.
This work seeks to analyze the causes of the decay processes observed in mixed pine forests of Pinus pinaster in Central Spain at its dry limit. This decay process is not exclusive to the area studied. If the causes of this decline are identified, better informed decisions can be made that lead to more efficient and sustainable forest management.
Describe the key elements constituting the natural resin sector in a historical resinous region, underlining the social, environmental and economic importance of resin harvesting, and its potential as an instrument of local development and environmental conservation.