Home About Browse Search
Svenska


Brownification on hold: What traditional analyses miss in extended surface water records

Eklöf, Karin and Von Brömssen, Claudia and Amvrosiadi, Nino and Fölster, Jens and Wallin, Marcus and Bishop, Kevin (2021). Brownification on hold: What traditional analyses miss in extended surface water records. Water Research. 203 , 117544
[Research article]

[img] PDF
1MB

Abstract

Widespread increases in organic matter (OM) content of surface waters, as measured by color and organic carbon (OC), are a major issue for aquatic ecosystems. Long-term monitoring programs revealed the issue of "browni-fication", with climate change, land cover changes and recovery from acidification all suspected to be major drivers or contributing factors. While many studies have focused on the impact and drivers, fewer have followed up on whether brownification is continuing. As time-series of OM data lengthen, conventional data-analysis approaches miss important information on when changes occur. To better identify temporal OM patterns during three decades (1990-2020) of systematic monitoring, we used generalized additive models to analyze 164 time-series from watercourses located across Sweden. Increases in OC that were widespread during 1990-2010 ceased a decade ago, and most color increases ceased 20 years ago. These findings highlight the need to reassess the understanding of brownification's spatial and temporal extent, as well as the tools used to analyze lengthening time series.

Authors/Creators:Eklöf, Karin and Von Brömssen, Claudia and Amvrosiadi, Nino and Fölster, Jens and Wallin, Marcus and Bishop, Kevin
Title:Brownification on hold: What traditional analyses miss in extended surface water records
Series Name/Journal:Water Research
Year of publishing :2021
Volume:203
Article number:117544
Number of Pages:6
Publisher:PERGAMON-ELSEVIER SCIENCE LTD
ISSN:0043-1354
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Oceanography, Hydrology, Water Resources
Keywords:Brownification, Organic matter, Absorbance, Watercourses, Long-term trends, Generalized additive mixed model
URN:NBN:urn:nbn:se:slu:epsilon-p-113761
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-113761
Additional ID:
Type of IDID
DOI10.1016/j.watres.2021.117544
Web of Science (WoS)000697763400002
ID Code:25552
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Aquatic Sciences and Assessment
(NL, NJ) > Dept. of Energy and Technology
Deposited By: SLUpub Connector
Deposited On:04 Oct 2021 12:14
Metadata Last Modified:04 Oct 2021 12:21

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits