Short Communication. Resin tapping activity as a contribution to the management of maritime pine forest

  • Amélia Palma Instituto Nacional de Investigação Agrária e Veterinária. Oeiras.
  • João Miguel Pereira Universidade de Lisboa. Instituto Superior de Agronomia, Centro de Estudos Florestais. Tapada Ayuda. Lisboa.
  • Paula Soares Universidade de Lisboa. Instituto Superior de Agronomia, Centro de Estudos Florestais. Tapada Ayuda. Lisboa.
Keywords: maritime pine, gum resin, resin yield potential, forest owner


Aim of the study: In this work potential resin yield in a region of high forest ability where maritime pine is the main species was estimated in order to understand the viability of promoting resin exploitation.

Area of study: This study was conducted in Castro Daire County in central region of Portugal.

Material and methods: To quantify the resin yield of trees tapped for the first time two plots were installed in a maritime pine stand with average tree age 65 years. Before the beginning of the resin tapping, dendrometric tree variables were measured. Also, in a neighbouring stand, 25 trees were selected to check the relation between tree dbh and resin yield. Gum resin from every tree was weighted during the season. Estimates of potential resin yield in Castro Daire County were made based on data from National Forest Inventory plots, resin tapping legislation and resin yield values obtained in the field. Two scenarios were considered: high and low resin yield. To understand the intentions of forest owners towards restarting resin tapping activity 16 maritime pine forest owners were interviewed.

Main results: The results point out a high yield potential capacity for gum resin production in the County: values between 2,025 and 5,873 tons were obtained.

Research highlights: Results may highlight the important socio-economical role of the resin tapping activity and can be used to support national forest policies to the resin sector and give forest owners motivation to reactivate resin tapping activity.

Keywords: non-wood forest product; resin yield potential; forest owner.


Download data is not yet available.



AFN, 2010. Inventário florestal nacional Portugal Continental IFN5 2005-2006. Lisboa.

CESE, 1996. O Setor florestal português. Conselho Ensino Superior Empresa, Ministério da Educação, Póvoa de Varzim, Portugal.

ICNF, 2013. 6º Inventário Florestal Nacional: áreas dos usos do solo e das espécies florestais de Portugal Continental. Resultados preliminares. Instituto da Conservação da Natureza e das Florestas, Lisboa.

Nanos N, Tadesse W, Montero G, Gil L, Alia R, 2001. Spatial stochastic modelling of resin yield from pine stands. Can J For Res 31: 1140-1147.

Nieto AP, Herrero FP, 2013. La resinación en España y en el mundo en 2013: situación y perspectivas. II International Symposium on Natural Resins 2013, Coca-Segovia, Ministerio de Agricultura, Alimentación y Medio Ambiente, Madrid.

Oliveira AC, Pereira, JS, Correia, AV, 2000. A silvicultura do pinheiro bravo. Centro Pinus. Viana do Castelo, Portugal.

Palma A, 2007. Capacidade produtiva de resina de pinheiro bravo. Breve panorâmica do sector resineiro em Portugal. Dissertação para Investigador Auxiliar, INRB, Oeiras.

PMDFCI, 2013. Plano Municipal de Defesa da Floresta Contra Incêndios de Castro Daire. Câmara Municipal de Castro Daire, Portugal.

Rodríguez-García A, Martín JA, López R, Mutke S, Pinilos F, Gil L, 2015. Influence of climate variables on resin yield and secretory structures in tapped Pinus pinaster Ait. in central Spain. Agricultural and Forest Meteorology 202: 83-93.

Rodríguez-García A, López R, Martín JA, Pinillos F, Gil L, 2014. Resin yield in Pinus pinaster is related to tree dendrometry, stand density and tapping-induced systemic changes in xylem anatomy. Forest Ecology and Management 313: 47-54.

Tadesse W, Nanos N, Au-on FJ, Alía R, Gil L, 2001. Evaluation of high resin yielders of Pinus pinaster Ait. Forest Genetics 8(4): 271-278.

How to Cite
PalmaA., PereiraJ. M., & SoaresP. (2016). Short Communication. Resin tapping activity as a contribution to the management of maritime pine forest. Forest Systems, 25(2), eSC11.