Enhanced Photosynthesis and Transpiration in an Old Growth Forest Due To Wildfire Smoke

Rastogi, Bharat; Schmidt, Andres; Berkelhammer, Max; Noone, David; Meinzer, Frederick C.; Kim, John; Still, Christopher J.

doi:10.1029/2022gl097959

i

Enhanced Photosynthesis and Transpiration in an Old Growth Forest Due To Wildfire Smoke

Supporting Files

2022
By Rastogi, Bharat ; Schmidt, Andres ; Berkelhammer, Max ; ...

Details

Journal Title:

Geophysical Research Letters
Personal Author:

Rastogi, Bharat ; Schmidt, Andres ; Berkelhammer, Max ; Noone, David ; Meinzer, Frederick C. ; Kim, John ; Still, Christopher J.
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; GML (Global Monitoring Laboratory)
Description:

We document the response of a 2 day wildfire smoke event on a moist temperate coniferous old-growth forest in the western U.S. Wildfire smoke increased air temperature and suppressed relative humidity and total incoming radiation. Despite these conditions a ∼10% increase in ecosystem photosynthesis was observed. This was explained by a large increase (41%) in ecosystem-scale stomatal conductance, inferred from measurements of carbonyl sulfide. Increased stomatal conductance contradicts expected stomatal closure at high vapor pressure deficit and was likely caused by an increase in diffuse light and thus shade leaf insolation. Higher ecosystem productivity and transpiration were linked to a greater drawdown of soil moisture.
Keywords:

General Earth And Planetary Sciences Geophysics General Earth And Planetary Sciences General Earth And Planetary Sciences
Source:

Geophysical Research Letters, 49(10)
DOI:

https://doi.org/10.1029/2022gl097959
ISSN:

0094-8276 ; 1944-8007
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Rights Information:

Other
Compliance:

Library
Main Document Checksum:

urn:sha256:b3c1fd107c5e0dbcda0d7d6f6d8a7f9d787e3e02a53345625cfc90ce2fe8a087
Download URL:

https://repository.library.noaa.gov/view/noaa/54452/noaa_54452_DS1.pdf
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[PDF - 1.54 MB ]

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