Carbon storage in managed forests

1983 ◽  
Vol 13 (1) ◽  
pp. 155-166 ◽  
Author(s):  
Charles F. Cooper
Keyword(s):  
Carbon Storage ◽  
Boreal Forests ◽  
Managed Forests ◽  
Forest Regrowth ◽  
Maximum Sustained Yield ◽  
Richards Function ◽  
Temperate Deciduous ◽  
Sustained Yield ◽  
Temperate Deciduous Forests ◽  
The Tropics

The mass of carbon stored in forests is an important component of the global carbon cycle. A general model is developed to relate average carbon storage over the lifetime of a forest managed for sustained yield to the maximum biomass of the same forest at maturity. Point of inflection of stand growth is established using the Richards function. If a forest is managed for maximum sustained yield of biomass, mean lifetime carbon storage is about one-third that at maturity. Point of growth inflection has little effect on this fraction. When accumulation and decomposition of detritus after harvest are added, the fraction is about 0.5 in temperate deciduous forests, less in the tropics, and more in boreal forests. Harvest at financial maturity, by shortening the rotation, disproportionately reduces lifetime carbon storage, to perhaps 0.2 of the maximum. Nontimber values may affect carbon storage either positively or negatively. Forest regrowth and multispecies agricultural systems that include trees may account for more carbon storage in the tropics than is sometimes assumed.

scholarly journals Aboveground carbon in Quebec forests: stock quantification at the provincial scale and assessment of temperature, precipitation and edaphic properties effects on the potential stand-level stocking

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e1767 ◽  
Author(s):  
Louis Duchesne ◽  
Daniel Houle ◽  
Rock Ouimet ◽  
Marie-Claude Lambert ◽  
Travis Logan
Keyword(s):  
Climate Change ◽  
Carbon Storage ◽  
Boreal Forests ◽  
Carbon Stock ◽  
Weighted Average ◽  
Aerial Photographs ◽  
Mean Annual Temperature ◽  
Large Set ◽  
Managed Forests ◽  
Aboveground Carbon

Biological carbon sequestration by forest ecosystems plays an important role in the net balance of greenhouse gases, acting as a carbon sink for anthropogenic CO2emissions. Nevertheless, relatively little is known about the abiotic environmental factors (including climate) that control carbon storage in temperate and boreal forests and consequently, about their potential response to climate changes. From a set of more than 94,000 forest inventory plots and a large set of spatial data on forest attributes interpreted from aerial photographs, we constructed a fine-resolution map (∼375 m) of the current carbon stock in aboveground live biomass in the 435,000 km2of managed forests in Quebec, Canada. Our analysis resulted in an area-weighted average aboveground carbon stock for productive forestland of 37.6 Mg ha−1, which is lower than commonly reported values for similar environment. Models capable of predicting the influence of mean annual temperature, annual precipitation, and soil physical environment on maximum stand-level aboveground carbon stock (MSAC) were developed. These models were then used to project the future MSAC in response to climate change. Our results indicate that the MSAC was significantly related to both mean annual temperature and precipitation, or to the interaction of these variables, and suggest that Quebec’s managed forests MSAC may increase by 20% by 2041–2070 in response to climate change. Along with changes in climate, the natural disturbance regime and forest management practices will nevertheless largely drive future carbon stock at the landscape scale. Overall, our results allow accurate accounting of carbon stock in aboveground live tree biomass of Quebec’s forests, and provide a better understanding of possible feedbacks between climate change and carbon storage in temperate and boreal forests.

scholarly journals Experimental Examination of Vegetative Propagation Methods of Nothofagus antarctica (G. Forst.) Oerst. for Restoration of Fire-Damaged Forest in Torres del Paine National Park, Chile

Forests ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1238
Author(s):  
Josef Cafourek ◽  
Petr Maděra ◽  
Josef Střítecký ◽  
Radim Adolt ◽  
Martin Smola
Keyword(s):  
Vegetative Propagation ◽  
Boreal Forests ◽  
Artificial Regeneration ◽  
Nothofagus Antarctica ◽  
Temperate Deciduous ◽  
Temperate Deciduous Forests ◽  
Forest Nurseries ◽  
Propagation Methods ◽  
Seed Propagation ◽  
Torres Del Paine

Nothofagus antarctica (Antarctic beech) is one of the main woody plants in the temperate deciduous forests and anti-boreal forests of the southern hemisphere. Since colonization of the Andean-Patagonian region by European settlers, however, stands of this species have been severely affected by fires caused by human activities, considerably reducing their area. To restore these forests to their area occupied before the fires, it is necessary to use artificial regeneration, relying on production of transplants in forest nurseries. Due to the low capacity for seed propagation, we focus on possibilities of producing seedlings by vegetative propagation. In a trial, we collected cuttings during three sets of dates, and attempted to root them using three combinations of substrate and ten combinations of stimulators. Using the most favorable combination of collection period, substrate and stimulator tested resulted in rooting of 23% of the cuttings, which exceeds the documented germination rates for this species.

RAPD Variation among Quercus Species Distributed in Temperate Deciduous Forests of the Hiruzen Mountains

1997 ◽  
Vol 2 (2) ◽  
pp. 121-123 ◽  
Author(s):  
Jeong Ho Lee ◽  
Hayato Hashizume ◽  
Atsushi Watanabe ◽  
Toshitake Fukata ◽  
Susumu Shiraishi ◽  
...  
Keyword(s):  
Deciduous Forests ◽  
Quercus Species ◽  
Temperate Deciduous ◽  
Rapd Variation ◽  
Temperate Deciduous Forests

Saproxylic insect assemblages in Canadian forests: diversity, ecology, and conservation

2008 ◽  
Vol 140 (4) ◽  
pp. 453-474 ◽  
Author(s):  
David W. Langor ◽  
H.E. James Hammond ◽  
John R. Spence ◽  
Joshua Jacobs ◽  
Tyler P. Cobb
Keyword(s):  
Forest Management ◽  
Boreal Forests ◽  
Dead Wood ◽  
Sustainable Forest Management ◽  
Forest Harvesting ◽  
Stand Age ◽  
Managed Forests ◽  
Saproxylic Insects ◽  
Associated Species ◽  
Experimental Burns

AbstractSaproxylic insect assemblages inhabiting dead wood in Canadian forests are highly diverse and variable but quite poorly understood. Adequate assessment of these assemblages poses significant challenges with respect to sampling, taxonomy, and analysis. Their assessment is nonetheless critical to attaining the broad goals of sustainable forest management because such species are disproportionately threatened elsewhere by the reductions in dead wood generally associated with commercial exploitation of northern forests. The composition of the saproxylic fauna is influenced by many factors, including tree species, degree of decay, stand age, and cause of tree death. Wildfire and forest harvesting have differential impacts on saproxylic insect assemblages and on their recovery in postdisturbance stands. Exploration of saproxylic insect responses to variable retention harvesting and experimental burns is contributing to the development of prescriptions for conserving saproxylic insects in boreal forests. Understanding of processes that determine diversity patterns and responses of saproxylic insects would benefit from increased attention to natural history. Such work should aim to provide a habitat-classification system for dead wood to better identify habitats (and associated species) at risk as a result of forest management. This tool could also be used to improve strategies to better maintain saproxylic organisms and their central nutrient-cycling functions in managed forests.

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