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Quantifying surface albedo and other direct biogeophysical climate forcings of forestry activities: A review.

Bright RM, K Zhao, RB Jackson, F Cherubini
Global Change Biology
Journal Volume/Pages: 

By altering fluxes of heat, momentum, and moisture exchanges between the land surface and atmosphere, forestry
and other land-use activities affect climate. Although long recognized scientifically as being important, these so-called
biogeophysical forcings are rarely included in climate policies for forestry and other land management projects due
to the many challenges associated with their quantification. Here, we review the scientific literature in the fields of
atmospheric science and terrestrial ecology in light of three main objectives: (i) to elucidate the challenges associated
with quantifying biogeophysical climate forcings connected to land use and land management, with a focus on the
forestry sector; (ii) to identify and describe scientific approaches and/or metrics facilitating the quantification and
interpretation of direct biogeophysical climate forcings; and (iii) to identify and recommend research priorities that
can help overcome the challenges of their attribution to specific land-use activities, bridging the knowledge gap
between the climate modeling, forest ecology, and resource management communities. We find that ignoring surface
biogeophysics may mislead climate mitigation policies, yet existing metrics are unlikely to be sufficient. Successful
metrics ought to (i) include both radiative and nonradiative climate forcings; (ii) reconcile disparities between biogeophysical
and biogeochemical forcings, and (iii) acknowledge trade-offs between global and local climate benefits. We
call for more coordinated research among terrestrial ecologists, resource managers, and coupled climate modelers to
harmonize datasets, refine analytical techniques, and

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