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

Palma, Amélia; Pereira, João Miguel; Soares, Paula

doi:10.5424/fs/2016252-08925

Cited by 13 publications

(3 citation statements)

References 2 publications

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“…Resin extraction can not only contribute to the profitability of timber-oriented Atlantic pine forests, but also facilitate their management and conservation through the provisioning of multiple ecosystem services (Palma et al 2016a;Touza et al 2021). This study consistently shows that resin yield of both maritime pine and radiata pine was significantly increased by the application of stimulating agents such as Salicylic acid (in SAL paste), Ethephon (in CUN paste) or sulfuric acid (present in all pastes tested at different concentrations).…”

Section: Discussionmentioning

confidence: 99%

Resin tapping of Atlantic pine forests: towards an optimized use of stimulant pastes over the season

Lema,

Touza,

Feijoo

et al. 2024

Eur J Forest Res

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Pine resin is a valuable non-wood forest product with an increasing interest in multiple industrial sectors. Resin-tapping activities also provide valuable ecosystem services in timber-oriented and highly productive pine forest of Atlantic regions, where little previous experience in resin-tapping is available. The objectives of this study were to determine the efficiency of different stimulant pastes and its variation with pine species, site conditions, seasonality and frequency of tapping interventions. We conducted parallel experiments using both conventional and micro-tapping techniques in mature pine stands in NW Spain. We tested four stimulants (control and Zeta, Cunningham and Salicylic pastes) and two groove frequencies (every 2 or 3 weeks). All stimulant pastes significantly increased resin yield compared to the control, being resin stimulation highly consistent across years, sites and species. In conventional resin tapping, resin yield was maximized with the Cunningham and Salicylic pastes while in micro-tapping Salicylic was the most outstanding stimulant treatment. According to the rapid decay of resin flow after wounding, total resin yield decreased with more spaced grooves. However, the reduction was low, and the global efficiency of the tapping operations are likely maximized with grooves applied every three weeks, which would allow increasing the number of tapped trees. Micro-tapping techniques were valuable for screening stimulant pastes and anticipating variation among sites in resin production. Altogether, the Salicylic paste is recommended, especially at the beginning of the resin campaign, when the effect of the pastes was maximized, and if tapping is conducted using closed atmospheres and containers.

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Section: Discussionmentioning

confidence: 99%

Resin tapping of Atlantic pine forests: towards an optimized use of stimulant pastes over the season

Lema,

Touza,

Feijoo

et al. 2024

Eur J Forest Res

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“…For the 2008-2011 period, the production cost of oleoresin was nearly double that of lignocellulosic crops, i.e., USD 0.2-0.4 kg −1 ≡ EUR 4.6-9.2 GJ −1 [95]. However, when oleoresin tapping was carried out by the American tapping method with an application of a 2% paraquat-cationic stimulant, the production cost was significantly reduced.…”

Section: Discussionmentioning

confidence: 99%

Tree Resin, a Macroergic Source of Energy, a Possible Tool to Lower the Rise in Atmospheric CO2 Levels

Demko

Machava

2022

Sustainability

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Tree resin is a macroergic component that has not yet been used for energy purposes. The main goal of this work is to determine the energy content of the resin of spruce, pine, and larch and of wood components—pulp and turpentine. The combustion heat of resin from each timber was determined calorimetrically. Approximately 1.0 g of liquid samples was applied in an adiabatic calorimeter. The energy values of the tree resin (>38.0 MJ·kg−1) were 2.2 and 2.4 times higher than that of bleached and unbleached cellulose, and the highest value was recorded for turpentine (>39.0 MJ·kg−1). Due to the high heating values of the resin, it is necessary to develop approaches to the technological processing of the resin for energy use. The best method of resin tapping is the American method, providing 5 kg of resin ha−1 yr−1. The tapped resin quantity can be raised by least 3 times by applying a stimulant. Its production cost compared to other feedstocks was the lowest. Tree resin can be applied as a means of mitigating global warming and consequently dampening climate change by reducing the CO2 content in the atmosphere. One tonne of tree resin burned instead of coal spares the atmosphere 5.0 Mt CO2.

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“…This drop can be linked to the liberalization of the Spanish economy and the emergence of new producing countries such as China and, to a lesser extent, Brazil and Indonesia (see Liu [36] for export trends of forest products from China from the 1960s to 2010s). The incorporation of these new producers in addition to the greater use of fossil fuels by rural communities resulted not only in a telecoupling feedback in Las Pegueras Forest, but also in the entire Iberian Peninsula [70,71] where the emergence of distant resin producing countries due to lower field labor costs resulted in a local reduction of resin tapping in Las Pegueras Forest. Telecoupling feedbacks also led to an increase in the consumption of resin by-products, which resulted in a deficit in their production at the national and also at the European level [71,72].…”

Section: From the Mid-20th Century To Industrializationmentioning

confidence: 99%

Resilience as a Moving Target: An Evaluation of Last Century Management Strategies in a Dry-Edge Maritime Pine Ecosystem

Moreno-Fernández

Zavala

Madrigal‐González

et al. 2021

Forests

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Forests are intrinsically coupled to human dynamics, both temporally and spatially. This evolution is conditioned by global changes in climatic conditions (teleconnections) and distant socio-economical processes (telecoupling). The main goal of this study is to describe the teleconnections and telecoupling dynamics that have shaped structure and processes in a dry-edge—highly vulnerable to desertification—Mediterranean pine forest during the last century and to evaluate the contribution of historical management strategies to this coupled human and natural system’s (CHANS) overall resilience. For this study, we collected relevant human and natural system data from a dry edge Pinus pinaster Ait. located forest in Central Spain using a CHANS analytical framework operationalizing telecoupling and teleconnection. A key extractive economic activity in the studied forest was resin tapping, which was the main form of land use from the 1920s to the 1950s. Since the 1950s changes in the Spanish economy linked to the emergence of new resin-producing countries, such as China, led to a sharp decline in resin production. Despite additional human system transformations affecting forest governance (e.g., the Spanish Civil War, the transition to democracy, European integration, etc.) and changes in biophysical conditions linked to climate change (e.g., aridification, CO2 fertilization), the standing stocks of P. pinaster increased during the monitoring period due to sound technical and management planning bolstering overall resilience. These historical management decisions, we argue, successfully reconciled overall resilience goals (defined as the maintenance of forest function beyond and desertification avoidance) with three successive historical forest use challenges: intensive firewood collection by local communities in fragile sandy soils, extensive pastoralism in the forest understory and tradeoffs between resin tapping damaged trees, timber production and tree cover as well as the emerging risks of wildfire and climate change.

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

Cited by 13 publications

References 2 publications

Resin tapping of Atlantic pine forests: towards an optimized use of stimulant pastes over the season

Resin tapping of Atlantic pine forests: towards an optimized use of stimulant pastes over the season

Tree Resin, a Macroergic Source of Energy, a Possible Tool to Lower the Rise in Atmospheric CO2 Levels

Resilience as a Moving Target: An Evaluation of Last Century Management Strategies in a Dry-Edge Maritime Pine Ecosystem

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