scholarly journals Evaluation of simulated estimates of forest ecosystem carbon stocks using ground plot data from Canada's National Forest Inventory

2014 ◽  
Vol 272 ◽  
pp. 323-347 ◽  
Author(s):  
C.H. Shaw ◽  
A.B. Hilger ◽  
J. Metsaranta ◽  
W.A. Kurz ◽  
G. Russo ◽  
...  
Keyword(s):  
Forest Ecosystem ◽  
Forest Inventory ◽  
National Forest Inventory ◽  
Carbon Stocks ◽  
National Forest ◽  
Ecosystem Carbon ◽  
Ecosystem Carbon Stocks

scholarly journals Assessing the Carbon Storage of Soil and Litter from National Forest Inventory Data in South Korea

Forests ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1318
Author(s):  
Sunjeoung Lee ◽  
Seunghyun Lee ◽  
Joonghoon Shin ◽  
Jongsu Yim ◽  
Jinteak Kang
Keyword(s):  
Random Forest ◽  
Soil Carbon ◽  
Forest Inventory ◽  
National Forest Inventory ◽  
Carbon Stocks ◽  
National Forest ◽  
Litter Layer ◽  
Forest Models ◽  
Random Forest Models ◽  
Soil Carbon Stocks

Research Highlights: The estimation of soil and litter carbon stocks by the Land Use, Land-Use Changes, and Forestry (LULUCF) sectors has the potential to improve reports on national greenhouse gas (GHG) inventories. Background and Objectives: Forests are carbon sinks in the LULUCF sectors and therefore can be a comparatively cost-effective means and method of GHG mitigation. Materials and Methods: This study was conducted to assess soil at 0–30 cm and litter carbon stocks using the National Forest Inventory (NFI) data and random forest (RF) models, mapping their carbon stocks. The three main types of forest in South Kora were studied, namely, coniferous, deciduous, and mixed. Results: The litter carbon stocks (t C ha−1) were 4.63 ± 0.18 for coniferous, 3.98 ± 0.15 for mixed, and 3.28 ± 0.13 for deciduous. The soil carbon stocks (t C ha−1) were 44.11 ± 1.54 for deciduous, 35.75 ± 1.60 for mixed, and 33.96 ± 1.62 for coniferous. Coniferous forests had higher litter carbon stocks while deciduous forests contained higher soil carbon stocks. The carbon storage in the soil and litter layer increased as the forest grew older; however, a significant difference was found in several age classes. For mapping the soil and litter carbon stocks, we used four random forest models, namely RF1 to RF4, and the best performing model was RF2 (root mean square error (RMSE) (t C ha−1) = 1.67 in soil carbon stocks, 1.49 in soil and litter carbon stocks). Our study indicated that elevation, accessibility class, slope, diameter at breast height, height, and growing stock are important predictors of carbon stock. Soil and litter carbon stock maps were produced using the RF2 models. Almost all prediction values were appropriated to soil and litter carbon stocks. Conclusions: Estimating and mapping the carbon stocks in the soil and litter layer using the NFI data and random forest models could be used in future national GHG inventory reports. Additionally, the data and models can estimate all carbon pools to achieve an accurate and complete national GHG inventory report.

scholarly journals Harvest volumes and carbon stocks in boreal forests of Ontario, Canada

2021 ◽  
Vol 97 (02) ◽  
pp. 168-178
Author(s):  
Michael T. Ter-Mikaelian ◽  
Stephen J. Colombo ◽  
Jiaxin Chen
Keyword(s):  
Forest Management ◽  
Forest Ecosystem ◽  
Boreal Forests ◽  
Natural Disturbance ◽  
Carbon Stocks ◽  
Wood Products ◽  
Ecosystem Carbon ◽  
Harvest Volume ◽  
Unmanaged Forest ◽  
Ecosystem Carbon Stocks

We used models to project forest carbon stocks for a series of harvesting scenarios for 29 boreal forest management units totalling 23.3 million ha in Ontario, Canada. Scenarios evaluated for 2020 to 2050 ranged from a no harvesting option to annual harvesting of 2% of the total merchantable volume present in 2020. For each scenario, we estimated the following carbon quantities: (a) forest ecosystem carbon stocks, (b) sum of carbon stocks in forest ecosystem and harvested wood products (HWP) minus emissions associated with HWP production and decomposition, and (c) net greenhouse gas (GHG) effects of harvesting estimated as (b) combined with emissions avoided by substituting HWP for non-wood materials. The average of each carbon quantity for 2020 to 2050 was linearly dependent on the annual harvest volume. The developed relationships were used to estimate harvest volumes for which the three carbon quantities would equal equilibrium forest ecosystem carbon stocks for a pre-suppression natural disturbance cycle. These estimates indicate the range of harvest volumes for which resulting carbon stocks would equal or exceed those in an unmanaged forest. Also discussed are possible criteria for determining annual harvest volume.

scholarly journals A comprehensive data-based assessment of forest ecosystem carbon stocks in the US 1907–2012

2019 ◽  
Vol 14 (12) ◽  
pp. 125015 ◽  
Author(s):  
Andreas Magerl ◽  
Julia Le Noë ◽  
Karl-Heinz Erb ◽  
Manan Bhan ◽  
Simone Gingrich
Keyword(s):  
Forest Ecosystem ◽  
Carbon Stocks ◽  
Ecosystem Carbon ◽  
Comprehensive Data ◽  
The Us ◽  
Ecosystem Carbon Stocks

scholarly journals Harvest volumes and carbon stocks in boreal forests of Ontario, Canada

2021 ◽  
pp. 1-11
Author(s):  
Michael T. Ter-Mikaelian ◽  
Stephen J. Colombo ◽  
Jiaxin Chen
Keyword(s):  
Forest Management ◽  
Forest Ecosystem ◽  
Boreal Forests ◽  
Natural Disturbance ◽  
Carbon Stocks ◽  
Wood Products ◽  
Ecosystem Carbon ◽  
Harvest Volume ◽  
Unmanaged Forest ◽  
Ecosystem Carbon Stocks

We used models to project forest carbon stocks for a series of harvesting scenarios for 29 boreal forest management units totalling 23.3 million ha in Ontario, Canada. Scenarios evaluated for 2020 to 2050 ranged from a no harvesting option to annual harvesting of 2% of the total merchantable volume present in 2020. For each scenario, we estimated the following carbon quantities: (a) forest ecosystem carbon stocks, (b) sum of carbon stocks in forest ecosystem and harvested wood products (HWP) minus emissions associated with HWP production and decomposition, and (c) net greenhouse gas (GHG) effects of harvesting estimated as (b) combined with emissions avoided by substituting HWP for non-wood materials. The average of each carbon quantity for 2020 to 2050 was linearly dependent on the annual harvest volume. The developed relationships were used to estimate harvest volumes for which the three carbon quantities would equal equilibrium forest ecosystem carbon stocks for a pre-suppression natural disturbance cycle. These estimates indicate the range of harvest volumes for which resulting carbon stocks would equal or exceed those in an unmanaged forest. Also discussed are possible criteria for determining annual harvest volume.

Indications that site preparation increases forest ecosystem carbon stocks in the long term

2017 ◽  
Vol 32 (8) ◽  
pp. 717-725 ◽  
Author(s):  
Kristina Mjöfors ◽  
Monika Strömgren ◽  
Hans-Örjan Nohrstedt ◽  
Maj-Britt Johansson ◽  
Annemieke I. Gärdenäs
Keyword(s):  
Forest Ecosystem ◽  
Site Preparation ◽  
Carbon Stocks ◽  
Ecosystem Carbon ◽  
Ecosystem Carbon Stocks

scholarly journals Effects of different management options of Norway spruce on radiative forcing through changes in carbon stocks and albedo

2021 ◽  
Author(s):  
Seppo Kellomäki ◽  
Hannu Väisänen ◽  
Miko U F Kirschbaum ◽  
Sara Kirsikka-Aho ◽  
Heli Peltola
Keyword(s):  
Norway Spruce ◽  
Forest Ecosystem ◽  
Radiative Forcing ◽  
Carbon Stocks ◽  
Radiation Absorption ◽  
Management Option ◽  
Management Options ◽  
Ecosystem Carbon ◽  
Old Growth Forest ◽  
Ecosystem Carbon Stocks

Abstract Norway spruce (Picea abies Karst. (L.)) in the boreal zone can be managed as even-aged or uneven-aged stands, or be grown with no management at all. Here, we investigated how these management options affect carbon dynamics, particularly the carbon stocks in the forest ecosystem (trees and soil), and albedo, and their combined effect on radiative forcing compared to a reference case, clear-cut site before planting seedlings. This allowed us to assess the potential of different management regimes to mitigate global warming. We ran long-term simulations under the current climate on a sub-mesic site in central Finland (62oN) using an eco-physiological forest-ecosystem model. Compared to even-aged management, no management (old-growth forest) increased ecosystem carbon stocks by 47 per cent and decreased albedo by 15 per cent, whereas uneven-aged management reduced ecosystem carbon stocks by 16 per cent and increased albedo by 10 per cent. Only the no management option resulted in a significant net cooling effect whereas for even-aged and uneven-aged management, the opposing effects of changes in albedo and carbon stocks largely cancelled each other with little remaining net effect. On the other hand, the latter one even made a small net warming contribution. Overall, maintaining higher ecosystem carbon stocks implied the larger cooling benefits. This was evident even though lower albedo enhanced radiation absorption, and thus warming. Increasing use of the no management option by forest owners may require proper incentives such as compensation for lost harvest incomes.

Steigende Bestandszahlen bei Spechten und anderen Vogelarten dank Zunahme von Totholz? | An increase in the population of woodpeckers and other bird species thanks to an increase in the quantities of deadwood?

2009 ◽  
Vol 160 (11) ◽  
pp. 334-340 ◽  
Author(s):  
Pierre Mollet ◽  
Niklaus Zbinden ◽  
Hans Schmid
Keyword(s):  
Forest Inventory ◽  
Bird Species ◽  
National Forest Inventory ◽  
Population Increase ◽  
National Forest ◽  
Forest Species ◽  
Breeding Populations ◽  
Willow Tit ◽  
Middle Spotted Woodpecker ◽  
Important Habitat

Results from the monitoring programs of the Swiss Ornithological Institute show that the breeding populations of several forest species for which deadwood is an important habitat element (black woodpecker, great spotted woodpecker, middle spotted woodpecker, lesser spotted woodpecker, green woodpecker, three-toed woodpecker as well as crested tit, willow tit and Eurasian tree creeper) have increased in the period 1990 to 2008, although not to the same extent in all species. At the same time the white-backed woodpecker extended its range in eastern Switzerland. The Swiss National Forest Inventory shows an increase in the amount of deadwood in forests for the same period. For all the mentioned species, with the exception of green and middle spotted woodpecker, the growing availability of deadwood is likely to be the most important factor explaining this population increase.

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