Tropical tree mortality has increased with rising atmospheric water stress

Bauman, David; Fortunel, Claire; Delhaye, Guillaume; Malhi, Yadvinder; Cernusak, Lucas A.; Bentley, Lisa Patrick; Rifai, Sami W.; Aguirre‐Gutiérrez, Jesús; Menor, Imma Oliveras; Phillips, Oliver L.; McNellis, Brandon E.; Bradford, Matt; Laurance, Susan G.; Hutchinson, Michael F.; Dempsey, Raymond; Santos-Andrade, Paul E.; Ninantay-Rivera, Hugo R.; Paucar, Jimmy R. Chambi; McMahon, Sean M.

doi:10.1038/s41586-022-04737-7

Cited by 118 publications

(89 citation statements)

References 86 publications

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“…In fact, the expanding bioeconomy already forces an increased demand on wood harvest, which is likely to hamper the global vision and targets for forest-based climate mitigation (Ceccherini et al 2020). Pressure on forest will be further increased due to rising temperatures and increased water stress (Bauman et al 2022).…”

Section: Global Northmentioning

confidence: 99%

Barriers and opportunities of fast-growing biobased material use in buildings

Göswein

Arehart

Phan-huy

et al. 2022

Buildings and Cities

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Limiting global warming to 1.5°C requires immediate and drastic reductions in greenhouse gas (GHG) emissions. A significant contributor to anthropogenic global GHG emissions is the production of building materials. Biobased materials offer the potential to reduce such emissions and could be deployed in the short term. Timber construction has received the main attention from policy and industry. However, the implementation of timber construction at the global scale is constrained by the availability of sustainably managed forest supplies. A viable alternative is fast-growing plants and the use of agricultural waste products. These can be deployed faster and are better aligned to local supplies of biomass and demands from the building sector. Fast-growing materials are generally able to achieve net-cooling impacts much faster due to their short rotation periods. The GHG emissions due to the production of biogenic building material can be compensated by regrowth of the new (replacement) plant and, overall, this will absorb CO 2 from the atmosphere. A range of biogenic materials can be promoted and used as insulation materials and structural materials.

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Section: Global Northmentioning

confidence: 99%

Barriers and opportunities of fast-growing biobased material use in buildings

Göswein

Arehart

Phan-huy

et al. 2022

Buildings and Cities

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“…Several studies have assessed drought‐induced tree growth decline and mortality (Allen et al., 2015; Anderegg, Hicke, et al., 2015; Bauman et al., 2022; Liang et al., 2016; Liu et al., 2013), forest resistance (ability to tolerate the drought impacts) and resilience (post‐drought recovery rate) to drought (Bose et al., 2020; Gazol et al., 2018; Li et al., 2020), and their underlying physiological mechanisms (Brodribb et al., 2020; Choat et al., 2018). Extreme droughts often exert long‐lasting legacy effects preventing or delaying growth recovery even when climatic droughts are over (Anderegg, Schwalm, et al., 2015; Wu, Liu, et al., 2018), suggesting the importance of both drought severity and post‐drought bioclimatic features for understanding drought resistance and resilience.…”

Section: Introductionmentioning

confidence: 99%

Timing and Order of Extreme Drought and Wetness Determine Bioclimatic Sensitivity of Tree Growth

Liu

Hartmann

et al. 2022

Earth's Future

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Tree resistance to extreme droughts and post‐drought recovery are sensitive to the drought timing. However, how the bioclimatic sensitivity of tree growth may vary with the timing and order of extreme droughts and wetness is still poorly understood. Here, we quantified the bioclimatic sensitivity of tree growth in the period of 1951–2013 under different seasonal extreme drought/wetness regimes over the extra‐tropical Northern Hemisphere, using 1,032 tree ring chronologies from 121 gymnosperm and angiosperm species. We found a negative asymmetry in tree growth under regimes with seasonal extreme droughts. With extreme drought, tree growth in arid and temperate dry regions is more negatively impacted by pre‐growing‐season (PGS) extreme droughts. Clade‐wise, angiosperms are more sensitive to PGS water availability, and gymnosperms to legacy effects of the preceding tree growth conditions in temperate dry and humid regions. Our finding of divergent bioclimatic legacy effects underscores contrasting trends in forest responses to drought across different ecoregions and functional groups in a more extreme climate.

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“…Climate change is predicted to have widespread impacts on forested ecosystems both regionally (Hubau et al 2020, Bauman et al 2022 and globally (Tian et al 2016, Kim et al 2017, Favero et al 2018, IPCC 2018, with some regions presenting unique opportunities for carbon sequestration (Koch and Kaplan 2022). Recent forest fires in Australia, Canada, and the United States highlight the important concern that established forest carbon sinks are susceptible to climate-driven fire losses (Abatzoglou and Williams 2016).…”

Section: Introductionmentioning

confidence: 99%

Costs of forest carbon sequestration in the presence of climate change impacts

Golub

Sohngen

Cai

et al. 2022

Environ. Res. Lett.

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Forests play a critical role in mitigating climate change, and, at the same time, are predicted to experience large-scale impacts of climate change that will affect the efficiency of forests in mitigation efforts. Projections of future carbon sequestration potential typically do not account for the changing economic costs of timber and agricultural production and land use change. We integrated a dynamic forward-looking economic optimization model of global land use with results from a dynamic global vegetation model and meta-analysis of climate impacts on crop yields to project future carbon sequestration in forests. We find that the direct impacts of climate change on forests, represented by changes in dieback and forest growth, and indirect effects due to lost crop productivity, together result in a net gain of 17 Gt C in aboveground forest carbon storage from 2000 to 2100. Increases in climate-driven forest growth rates will result in an 81-99% reduction in costs of reaching a range of global forest carbon stock targets in 2100, while the increases in dieback rates are projected to raise the costs by 57-132%. When combined, these two direct impacts are expected to reduce the global costs of climate change mitigation in forests by more than 70%. Inclusion of the third, indirect impact of climate change on forests through reduction in crop yields, and the resulting expansion of cropland, raises the costs by 11-38% and widens the uncertainty range. While we cannot rule out the possibility of climate change increasing mitigation costs, the central outcomes of the simultaneous impacts of climate change on forests and agriculture are 64-86% reductions in the mitigation costs. Overall, the results suggest that concerns about climate driven dieback in forests should not inhibit the ambitions of policy makers in expanding forest-based climate solutions.

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Tropical tree mortality has increased with rising atmospheric water stress

Abstract: This is a repository copy of Tropical tree mortality has increased with rising atmospheric water stress.

Cited by 118 publications

References 86 publications

Barriers and opportunities of fast-growing biobased material use in buildings

Barriers and opportunities of fast-growing biobased material use in buildings

Timing and Order of Extreme Drought and Wetness Determine Bioclimatic Sensitivity of Tree Growth

Costs of forest carbon sequestration in the presence of climate change impacts

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