Water Quality as an Indicator of Stream Restoration Effects—A Case Study of the Kwacza River Restoration Project

River restoration projects rely on environmental engineering solutions to improve the health of riparian ecosystems and restore their natural characteristics. The Kwacza River, the left tributary of the Słupia River in northern Poland, and the recipient of nutrients from an agriculturally used catch...
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Autor*in:	Natalia Mrozińska [verfasserIn] Katarzyna Glińska-Lewczuk [verfasserIn] Paweł Burandt [verfasserIn] Szymon Kobus [verfasserIn] Wojciech Gotkiewicz [verfasserIn] Monika Szymańska [verfasserIn] Martyna Bąkowska [verfasserIn] Krystian Obolewski [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2018

Schlagwörter:	ecological engineering water quality improvement non-point pollution sources

Übergeordnetes Werk:	In: Water - MDPI AG, 2010, 10(2018), 9, p 1249
Übergeordnetes Werk:	volume:10 ; year:2018 ; number:9, p 1249

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/w10091249

Katalog-ID:	DOAJ073780693

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authorswithroles_txt_mv	Natalia Mrozińska @@aut@@ Katarzyna Glińska-Lewczuk @@aut@@ Paweł Burandt @@aut@@ Szymon Kobus @@aut@@ Wojciech Gotkiewicz @@aut@@ Monika Szymańska @@aut@@ Martyna Bąkowska @@aut@@ Krystian Obolewski @@aut@@
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callnumber-first	T - Technology
author	Natalia Mrozińska
spellingShingle	Natalia Mrozińska misc TC1-978 misc TD201-500 misc ecological engineering misc water quality improvement misc non-point pollution sources misc Hydraulic engineering misc Water supply for domestic and industrial purposes Water Quality as an Indicator of Stream Restoration Effects—A Case Study of the Kwacza River Restoration Project
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topic_title	TC1-978 TD201-500 Water Quality as an Indicator of Stream Restoration Effects—A Case Study of the Kwacza River Restoration Project ecological engineering water quality improvement non-point pollution sources
topic	misc TC1-978 misc TD201-500 misc ecological engineering misc water quality improvement misc non-point pollution sources misc Hydraulic engineering misc Water supply for domestic and industrial purposes
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title	Water Quality as an Indicator of Stream Restoration Effects—A Case Study of the Kwacza River Restoration Project
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title_sort	water quality as an indicator of stream restoration effects—a case study of the kwacza river restoration project
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title_auth	Water Quality as an Indicator of Stream Restoration Effects—A Case Study of the Kwacza River Restoration Project
abstract	River restoration projects rely on environmental engineering solutions to improve the health of riparian ecosystems and restore their natural characteristics. The Kwacza River, the left tributary of the Słupia River in northern Poland, and the recipient of nutrients from an agriculturally used catchment area, was restored in 2007. The ecological status of the river’s biotope was improved with the use of various hydraulic structures, including palisades, groynes and stone islands, by protecting the banks with trunks, exposing a fragment of the river channel, and building a by-pass near a defunct culvert. The effects of restoration treatments were evaluated by comparing the physicochemical parameters of river water along the 2.5 km restored section between the source and the mouth to the Słupia, before restoration and 6 years after hydrotechnical treatments. A total of 18 physicochemical parameters were analyzed at 10 cross-sections along the river. The greatest changes were observed in the concentrations of NO3--N and NH4+-N, which decreased by 70% and 50%, respectively. Dissolved oxygen concentration increased by 65%. Chloride values increased by 44%, and chlorophyll-a concentration increased by 30% after the project. The cut-off channel (by-pass), semi-palisades, and single groynes were the treatments that contributed most to water quality improvement. The results of this study indicate that river restoration projects can substantially reduce nitrogen pollution, which is particularly important in agricultural areas. Such measures can effectively reinstate natural conditions in river ecosystems. Hydrochemical monitoring is required to control the parameters of restored rivers.
abstractGer	River restoration projects rely on environmental engineering solutions to improve the health of riparian ecosystems and restore their natural characteristics. The Kwacza River, the left tributary of the Słupia River in northern Poland, and the recipient of nutrients from an agriculturally used catchment area, was restored in 2007. The ecological status of the river’s biotope was improved with the use of various hydraulic structures, including palisades, groynes and stone islands, by protecting the banks with trunks, exposing a fragment of the river channel, and building a by-pass near a defunct culvert. The effects of restoration treatments were evaluated by comparing the physicochemical parameters of river water along the 2.5 km restored section between the source and the mouth to the Słupia, before restoration and 6 years after hydrotechnical treatments. A total of 18 physicochemical parameters were analyzed at 10 cross-sections along the river. The greatest changes were observed in the concentrations of NO3--N and NH4+-N, which decreased by 70% and 50%, respectively. Dissolved oxygen concentration increased by 65%. Chloride values increased by 44%, and chlorophyll-a concentration increased by 30% after the project. The cut-off channel (by-pass), semi-palisades, and single groynes were the treatments that contributed most to water quality improvement. The results of this study indicate that river restoration projects can substantially reduce nitrogen pollution, which is particularly important in agricultural areas. Such measures can effectively reinstate natural conditions in river ecosystems. Hydrochemical monitoring is required to control the parameters of restored rivers.
abstract_unstemmed	River restoration projects rely on environmental engineering solutions to improve the health of riparian ecosystems and restore their natural characteristics. The Kwacza River, the left tributary of the Słupia River in northern Poland, and the recipient of nutrients from an agriculturally used catchment area, was restored in 2007. The ecological status of the river’s biotope was improved with the use of various hydraulic structures, including palisades, groynes and stone islands, by protecting the banks with trunks, exposing a fragment of the river channel, and building a by-pass near a defunct culvert. The effects of restoration treatments were evaluated by comparing the physicochemical parameters of river water along the 2.5 km restored section between the source and the mouth to the Słupia, before restoration and 6 years after hydrotechnical treatments. A total of 18 physicochemical parameters were analyzed at 10 cross-sections along the river. The greatest changes were observed in the concentrations of NO3--N and NH4+-N, which decreased by 70% and 50%, respectively. Dissolved oxygen concentration increased by 65%. Chloride values increased by 44%, and chlorophyll-a concentration increased by 30% after the project. The cut-off channel (by-pass), semi-palisades, and single groynes were the treatments that contributed most to water quality improvement. The results of this study indicate that river restoration projects can substantially reduce nitrogen pollution, which is particularly important in agricultural areas. Such measures can effectively reinstate natural conditions in river ecosystems. Hydrochemical monitoring is required to control the parameters of restored rivers.
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title_short	Water Quality as an Indicator of Stream Restoration Effects—A Case Study of the Kwacza River Restoration Project
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Chloride values increased by 44%, and chlorophyll-a concentration increased by 30% after the project. The cut-off channel (by-pass), semi-palisades, and single groynes were the treatments that contributed most to water quality improvement. The results of this study indicate that river restoration projects can substantially reduce nitrogen pollution, which is particularly important in agricultural areas. Such measures can effectively reinstate natural conditions in river ecosystems. 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Water Quality as an Indicator of Stream Restoration Effects—A Case Study of the Kwacza River Restoration Project

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