Sediment‐phosphorus dynamics can shift aquatic ecology and cause downstream legacy effects after wildfire in large river systems

Global increases in the occurrence of large, severe wildfires in forested watersheds threaten drinking water supplies and aquatic ecology. Wildfire effects on water quality, particularly nutrient levels and forms, can be significant. The longevity and downstream propagation of these effects as well...

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Bibliographic Details
Published in:Global change biology 2016-03, Vol.22 (3), p.1168-1184
Main Authors: Emelko, Monica B., Stone, Micheal, Silins, Uldis, Allin, Don, Collins, Adrian L., Williams, Chris H. S., Martens, Amanda M., Bladon, Kevin D.
Format: Article
Language:English
Subjects:
Adsorption
Alberta
Aquatic ecology
Biogeochemistry
climate change
cumulative watershed
Drinking water
effects
eutrophication
Fires
Forest & brush fires
Freshwater
Geologic Sediments - analysis
land disturbance
phosphorus
Phosphorus - analysis
Rivers
Rivers - chemistry
Seasons
sediment
treatability
Water Pollutants, Chemical - analysis
Water Quality
wildfire
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Summary:Global increases in the occurrence of large, severe wildfires in forested watersheds threaten drinking water supplies and aquatic ecology. Wildfire effects on water quality, particularly nutrient levels and forms, can be significant. The longevity and downstream propagation of these effects as well as the geochemical mechanisms regulating them remain largely undocumented at larger river basin scales. Here, phosphorus (P) speciation and sorption behavior of suspended sediment were examined in two river basins impacted by a severe wildfire in southern Alberta, Canada. Fine‐grained suspended sediments (
ISSN:1354-1013
1365-2486
DOI:10.1111/gcb.13073