Michael C Nichols’s research while affiliated with US Forest Service and other places

... The SE US landscape comprises forests covering approximately 60 % of its total area (Wear and Greis, 2002). Most of these forests are privately owned, managed plantations (Coulston et al., 2015;Domke et al., 2023) that originate over 15 % of global wood products (Coulston et al., 2015). The Forest Inventory and Analysis (FIA) database indicates that the predominant forest types in the SE US include over 30 million hectares of upland hardwood forests, around 15 million hectares of cultivated pine forests, approximately 13 million hectares of natural pine and bottomland hardwoods, and more than 3 million hectares of oak-pine forest types . ...

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Structural diversity enhances carbon storage in mixed oak-pine forests of the Southeast United States

... In contrast, a more recent study of eastern US forests (39) reported a CO 2 fertilization-attributable increase in wood volume (0.35% y −1 ) from 1970 to 2015. US forests are currently a net carbon sink on average-offsetting ~13% of US annual greenhouse gas emissions-but there is wide regional variation in the sign and magnitude of US forest carbon fluxes (40). Beyond the uncertain effects of CO 2 fertilization, ongoing recovery from industrial logging and agricultural abandonment are widely accepted as contributing to a carbon sink in the eastern United States (27,38,41,42), whereas intensifying disturbance regimes likely contribute to negative carbon balances in some western states (28,40). ...

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Climate change determines the sign of productivity trends in US forests

... The major Landsat-based products for the contiguous United States (CONUS) include the Global Forest Watch (GFW) program of the World Resources Institute (Hansen et al., 2013), the forest cover fraction Vegetation Continuous Field (VCF) product from the Global Land Cover Facility (GLCF) Data Center at the University of Maryland (Sexton et al., 2013), and the National Land Cover Database (NLCD) from the United States Geological Survey (USGS) (Jin et al., 2013). In the USA, FIA and NLCD are the primary databases used by managers, researchers, and policymakers to assess land use and track land management (Hoover et al., 2020;Domke et al., 2021). FIA is a field survey of forest plots and reports information on the status and trends of forests in the USA. ...

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Annual maps of forest and evergreen forest in the contiguous United States during 2015–2017 from analyses of PALSAR-2 and Landsat images

... Clustering was conducted in accordance with the co-authorship method, and the authors were divided into 21 different clusters, among which 4 author clusters with significant team effects and outstanding research achievements form the main body of FCS research. The first cluster (marked with a red circle) was led by Grant M. Domke, Christopher W. Woodall, and James E. Smith, all from the United States Forest Service in the USA, who have long been committed to estimating the FCS of the United States (e.g., Domke et al. [49]; Domke et al. [50]; Smith et al. [51]; Woodall et al. [52]; Woodall et al. [53]). The second cluster (marked with a purple circle) was led by Guomo Zhou and Yongjun Shi, both from Zhejiang A&F University in China, who have focused on developing remote sensing models for estimating carbon storage in various forest types, such as moso bamboo forests (e.g., Du et al. [54]; Li et al. [55]; Mao et al. [56]; Shi et al. [57]; Xu et al. [58]). ...

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Using Knowledge Graphs to Analyze the Characteristics and Trends of Forest Carbon Storage Research at the Global Scale

... Stem wood biomass was derived as the product of basic density and volume. Bark volume was assumed to be 18% of stem wood volume [51] with density of 437 kg m −3 [52]. Biomass in redwood branches and foliage were estimated from diameter at breast height using allometric models [53] and roots were predicted using the IPCC default root-shoot ratio for coniferous forest of 0.23 [54]. ...

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Carbon Sequestration Estimates for Minor Exotic Softwood Species for Use in New Zealand’s Emissions Trading Scheme

... Estimates from Smith et al. [32], one of the most commonly cited wood product carbon studies [28,31,34,37,39,[69][70][71][72] Table 6 Sensitivity of emissions from loblolly and shortleaf pine wood products to the most influential parameters DOC f = the fraction of landfilled organic carbon that will decay over time; MSW = municipal solid waste; C&D = construction and demolition; average sawmill efficiency = sawmill efficiency for 33-47 cm saw logs, with smaller logs having − 0.05 efficiency and larger logs having + 0.1 efficiency; the magnitude of µ* indicates the influence of the parameter; the sign of µ indicates the direction of the effect; the bounds indicate the tested range of parameter values (see "Sensitivity analysis" section); the model output of which sensitivity was evaluated was the total (biogenic + fossil fuel) annual emission pulses from southwide loblolly and shortleaf pine harvested wood products produced over 120 years, discounted at 3%; a table of all parameters tested and their sensitivity indices is available in Additional file 1: situ) over 120 years (1649 tC ha −1 ) than the pulp regime (1449 tC ha −1 ) at a 3% discount rate. For high productivity sites, however, the pulp regime stored slightly more total carbon (2246 tC ha −1 ) than the sawtimber regime (2227 tC ha −1 ) (Fig. 7). ...

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Modeling wood product carbon flows in southern us pine plantations: implications for carbon storage

... Aboveground biomass (AGB) was calculated based on methods and equations available to our sites 31,78,80 . The modeled AGB per hectare for each restoration method were converted to carbon dioxide equivalent (CO 2 e) per hectare 81 . ...

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Mixed success for carbon payments and subsidies in support of forest restoration in the neotropics