Carbon conundrums: Do United States' current carbon market baselines represent an undesirable ecological threshold?

Authors :: D'Amato AW
Woodall CW
Weiskittel AR
Littlefield CE
Murray LT
Source :: Global change biology [Glob Chang Biol] 2022 Jul; Vol. 28 (13), pp. 3991-3994. Date of Electronic Publication: 2022 May 10.
Publication Year :: 2022
Abstract: Relative frequency distribution of observed annual mortality expressed in aboveground (AG) carbon (C) (Mg CO <subscript>2</subscript> e ha <superscript>-1</superscript> year <superscript>-1</superscript> ) summarized across supersections by forest type [Hardwood (HW) vs. Softwood (SW)] and site class (Low vs. High) based on approximately 130,000 remeasured USDA Forest Service Forest Inventory and Analysis plots across the US. Top panel summarizes conditions in plots that do and do not meet the California Air Resources Board standards based on total basal area, whereas bottom panel summarizes conditions in plots falling inside and outside of optimum relative density levels. The latter represents a biophysically-informed approach accounting for changes in tree (and carbon) packing over forest development.<br /> (© 2022 The Authors. Global Change Biology published by John Wiley & Sons Ltd.)

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