The Value of a Tree: Comparing Carbon Sequestration to Forest Products

Science Scope ◽  
2014 ◽  
Vol 037 (07) ◽  
Author(s):  
Jennifer Schon ◽  
R. Hougham ◽  
Karla Bradley Eitel ◽  
Steve Hollenhorst
2006 ◽  
Vol 36 (4) ◽  
pp. 886-900 ◽  
Author(s):  
Daniel W McKenney ◽  
Denys Yemshanov ◽  
Glenn Fox ◽  
Elizabeth Ramlal

We have developed a spatial cost–benefit afforestation model that includes the tracking of five carbon pools. In this application we represent three possible afforestation strategies that could be implemented in Canada using plantations of hybrid poplar, hardwoods, and softwoods with average expected growth rates of 12–14, 5–7, and 5–7 m3· ha–1·year–1 respectively. The model provides spatially explicit insights into the cost effectiveness of afforestation as a carbon sequestration tool. Here we develop an elasticity metric and experiment to assess model sensitivity and use the results to make recommendations about research priorities. The most important biological variables across all scenarios include site suitability, which is related to refining the spatial estimates of potential yields, biomass to carbon ratios, and wood density. The most important economic variables include refinement and lowering of establishment costs and agricultural opportunity costs. Parameters that have a low impact on the break-even carbon price, suggesting refinements in knowledge in these areas would be relatively less beneficial, include decay rates for forest products, stand senescence age (the age when stand mortality reaches its maximum), bioenergy and pulpwood prices, and mean residual time for leaf litter. Less importance was also placed on the proportions of forest products in the total harvest and refining a fossil fuel substitution coefficient.


Author(s):  
Manleen Kaur

Forests are not only mere providers of forest products but also offer various services like providing a mechanism of carbon sequestration and evading big disasters by preventing soil erosion, floods, landslides apart from being home to humans as well as diverse species. Recently there has been growing awareness and realization with regard to the role that forests play- as drivers of national growth. With growing population, needs and knowledge, the responsibility of forest sector is now not only limited to meeting the environmental concerns but encompasses livelihood issues which in turn will affect the economic and social needs of the country.


2020 ◽  
Vol 12 (10) ◽  
pp. 4147
Author(s):  
Xuyao Zhang ◽  
Weimin Zhang ◽  
Dayu Xu

The complex forestry enterprises incorporate the production activities of different links in the value chain of forest products and should be the mainstay for the sustainable forestry production of China in the foreseeable future. This case study was carried out and main data were collected in a forest–board integrated enterprise of South China. A life cycle model using the impact 2002+ method was applied to identify the resource consumption and environmental impacts of different production stages along the industrial chain. This study incorporates the calculation of carbon sequestration per unit output into the standard LCA to evaluate the effect of the forest cultivation stage. The objective of this study is two-fold. The first objective is to gain a better understanding of the environmental impacts of the complex forestry enterprises. The second objective is to put forward environmental management suggestions for the identified hotspots along the forest value chain. Factors affecting the environment include carbon sequestration and seedlings, electric power, and the use of wood fuel. Improvement suggestions are put forward from three perspectives: Changing the type and application method of fertilizer, reducing electric power consumption, and reducing wood fuel consumption.


1995 ◽  
Vol 25 (7) ◽  
pp. 1157-1172 ◽  
Author(s):  
G.J. Nabuurs ◽  
G.M.J. Mohren

Ten selected forest types were examined (1) to assess the carbon sequestering potential of those forest types that are most likely to be successful in sequestering atmospheric carbon, (2) to show the relevance of varying carbon sequestering criteria, and (3) to present a method as a possible standard for carbon sequestering assessments. The carbon sequestering potential of the forest, forest soils, and forest products was quantified with the dynamic model CO2FIX. Two main criteria for evaluation of the carbon sequestering capacity were used: (1) the long-term average stock of carbon in the forest biomass and wood products and (2) the average net annual carbon storage flux during the first rotation. It was found that selectively logged evergreen rain forests may contain the largest long-term average stock of carbon in the biomass and products, with 207 Mg C•ha−1. The highest net annual carbon fixation in the first rotation was achieved with Pinusradiata D. Don in Brazil, with a storage rate of 5.3 Mg C•ha−1•year−1 on fertile sites. These values can be regarded as maximum boundaries for carbon sequestration. Evaluation of carbon sequestration in forests should always be carried out with a set of varying carbon sequestering criteria. Such an evaluation should also take into account socioeconomic and ecological criteria. It remains a political issue which criterion prevails over the other. A study to improve the model by linking it to forest type area tables is in preparation. It will then be possible to present projections of carbon sequestration for a region or country.


2010 ◽  
Vol 40 (9) ◽  
pp. 1710-1723 ◽  
Author(s):  
Eun Ho Im ◽  
Darius M. Adams ◽  
Gregory S. Latta

This study examines the potential impacts of changes in federal timber harvest, acting through regional log markets, on the sequestration of carbon in forests and forest products in western Oregon. We construct a dynamic model of the region’s log markets in which market prices, log consumption at mills, and timber harvests and timber inventories on private, federal, and state forests are endogenous. Absent any policies regulating forest carbon sequestration, simulations show that regional carbon flux in forests and forest products would gradually decline as federal harvest rises from recent historical levels. If regional forest carbon flux were constrained to meet some minimum target, however, projections indicate that there would be opportunities for substituting carbon sequestration between federal and nonfederal lands through coordination of harvests across ownerships. We find that relatively small reductions in average private harvest could offset substantial losses of carbon flux on federal timberlands caused by increased federal harvest. One mechanism for achieving the changes needed in private harvest to meet a regional carbon flux target would be a carbon tax/subsidy program or a carbon offset market. For example, if federal owners offered timber for sale equal to the maximum sustainable level under the Northwest Forest Plan, our analysis indicates that a carbon price of roughly $US 19 per tonne of carbon would be sufficient to induce private owners to undertake the harvest and management modifications necessary to maintain regional forest carbon flux at its level in the early 2000s.


Author(s):  
Raúl Armando Ramos Veintimilla ◽  
David MacFarlane ◽  
Lauren Cooper

Abstract ‘Analog’ forestry is a novel silvicultural approach for reforestation of degraded land that seeks to establish trees that are analogous in structure and ecological function to the original climax or subclimax vegetation of the region where they are planted. Analog forestry aims to strengthen rural communities, both socially and economically, with tree plantings of high biodiversity, which provide commercial products and resiliency, while avoiding agrochemicals and fossil fuels. The latter links this strategy to climate change mitigation and adaptation strategies, but there has been little analysis comparing the potential for above- and below-ground carbon storage in analog forests, as compared with more typical reforestation efforts via single-species plantations. We present the results of a study to estimate carbon sequestration levels, above- and below-ground, from an experimental analog forest system and a teak (Tectona grandis L.f.) plantation system, in comparison with a degraded pasture system. The study found that the analog and teak plantation forest systems stored higher quantities of total carbon (178 and 141 t C ha−1, respectively), when compared with a degraded pasture system (124 t C ha−1). However, the teak plantation had decreased soil carbon stocks, relative to the degraded pasture. The analog forest had the best balance of both above- and below-ground carbon stored over the 17-year study period and provided a more diverse array of timber and non-timber forest products when compared with the teak plantation. This suggests that analog forestry could be a viable social–ecological approach to carbon storage and reforestation in the study region and other places with large areas of degraded pasture and a good understanding of the structure and function of the original vegetation.


TAPPI Journal ◽  
2013 ◽  
Vol 12 (1) ◽  
pp. 45-50 ◽  
Author(s):  
LAURENCE SCHIMLECK ◽  
KIM LOVE-MYERS ◽  
JOE SANDERS ◽  
HEATH RAYBON ◽  
RICHARD DANIELS ◽  
...  

Many forest products companies in the southeastern United States store large volumes of roundwood under wet storage. Log quality depends on maintaining a high and constant wood moisture content; however, limited knowledge exists regarding moisture variation within individual logs, and within wet decks as a whole, making it impossible to recommend appropriate water application strategies. To better understand moisture variation within a wet deck, time domain reflectometry (TDR) was used to monitor the moisture variation of 30 southern pine logs over an 11-week period for a wet deck at the International Paper McBean woodyard. Three 125 mm long TDR probes were inserted into each log (before the deck was built) at 3, 4.5, and 7.5 m from the butt. The position of each log within the stack was also recorded. Mixed-effects analysis of variance (ANOVA) was used to examine moisture variation over the study period. Moisture content varied within the log, while position within the stack was generally not significant. The performance of the TDR probes was consistent throughout the study, indicating that they would be suitable for long term (e.g., 12 months) monitoring.


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