Fog and live fuel moisture in coastal California shrublands
Abstract Across Mediterranean‐type climate regions, seasonal drought desiccates plants, facilitating ignition and the spread of wildfires. Along the California coast, summertime fog has the potential to ameliorate drought conditions and thus reduce plant flammability during a critical time of elevat...
Main Authors: | , , |
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Format: | Article |
Language: | English |
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Wiley
2018-04-01
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Series: | Ecosphere |
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Online Access: | https://doi.org/10.1002/ecs2.2167 |
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author | Nathan C. Emery Carla M. D'Antonio Christopher J. Still |
author_facet | Nathan C. Emery Carla M. D'Antonio Christopher J. Still |
author_sort | Nathan C. Emery |
collection | DOAJ |
description | Abstract Across Mediterranean‐type climate regions, seasonal drought desiccates plants, facilitating ignition and the spread of wildfires. Along the California coast, summertime fog has the potential to ameliorate drought conditions and thus reduce plant flammability during a critical time of elevated fire risk. This study investigated the uptake of dry season fog and how it affects live fuel moisture (LFM) in six dominant shrub species from chaparral and sage scrub plant associations. Fog water uptake was evaluated using stable isotopes of hydrogen and oxygen at several field sites in Santa Barbara County, California. Clear evidence of fog water uptake was identified only in Baccharis pilularis, from the sage scrub association. To determine the effects of fog on LFM, meteorological variables and indices including fog deposition were combined into principal components and the scores regressed against the LFM loss rate during the summer drought. Fog deposition slowed rates of LFM loss for all three sage scrub species tested, but it did not affect the chaparral species. Fog is a more regular occurrence in the sage scrub association, and thus, it is likely that fog ameliorates drought for species that experience consistent fog during the summer months. In coastal California, summer fog can be essential to plant water relations and reduce LFM loss rates during the summer drought. Understanding these effects is important in the context of changing climate in southern California and fire‐prone regions around the world. |
first_indexed | 2024-12-20T08:38:46Z |
format | Article |
id | doaj.art-6a6513f76dfa4898a5aaab8aa3f945d1 |
institution | Directory Open Access Journal |
issn | 2150-8925 |
language | English |
last_indexed | 2024-12-20T08:38:46Z |
publishDate | 2018-04-01 |
publisher | Wiley |
record_format | Article |
series | Ecosphere |
spelling | doaj.art-6a6513f76dfa4898a5aaab8aa3f945d12022-12-21T19:46:28ZengWileyEcosphere2150-89252018-04-0194n/an/a10.1002/ecs2.2167Fog and live fuel moisture in coastal California shrublandsNathan C. Emery0Carla M. D'Antonio1Christopher J. Still2Michigan State University 220 Trowbridge Road East Lansing Michigan 48824 USAUniversity of California Santa Barbara Santa Barbara California 93106 USAOregon State University Corvallis Oregon 97331 USAAbstract Across Mediterranean‐type climate regions, seasonal drought desiccates plants, facilitating ignition and the spread of wildfires. Along the California coast, summertime fog has the potential to ameliorate drought conditions and thus reduce plant flammability during a critical time of elevated fire risk. This study investigated the uptake of dry season fog and how it affects live fuel moisture (LFM) in six dominant shrub species from chaparral and sage scrub plant associations. Fog water uptake was evaluated using stable isotopes of hydrogen and oxygen at several field sites in Santa Barbara County, California. Clear evidence of fog water uptake was identified only in Baccharis pilularis, from the sage scrub association. To determine the effects of fog on LFM, meteorological variables and indices including fog deposition were combined into principal components and the scores regressed against the LFM loss rate during the summer drought. Fog deposition slowed rates of LFM loss for all three sage scrub species tested, but it did not affect the chaparral species. Fog is a more regular occurrence in the sage scrub association, and thus, it is likely that fog ameliorates drought for species that experience consistent fog during the summer months. In coastal California, summer fog can be essential to plant water relations and reduce LFM loss rates during the summer drought. Understanding these effects is important in the context of changing climate in southern California and fire‐prone regions around the world.https://doi.org/10.1002/ecs2.2167Californiafirefoglive fuel moisturestable isotopes |
spellingShingle | Nathan C. Emery Carla M. D'Antonio Christopher J. Still Fog and live fuel moisture in coastal California shrublands Ecosphere California fire fog live fuel moisture stable isotopes |
title | Fog and live fuel moisture in coastal California shrublands |
title_full | Fog and live fuel moisture in coastal California shrublands |
title_fullStr | Fog and live fuel moisture in coastal California shrublands |
title_full_unstemmed | Fog and live fuel moisture in coastal California shrublands |
title_short | Fog and live fuel moisture in coastal California shrublands |
title_sort | fog and live fuel moisture in coastal california shrublands |
topic | California fire fog live fuel moisture stable isotopes |
url | https://doi.org/10.1002/ecs2.2167 |
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