Towards restoring urban waters: understanding the main pressures

Teurlincx, Sven; Kuiper, Jan J.; Hoevenaar, Ellen C. M.; Lürling, Miquel; Brederveld, Robert J.; Veraart, Annelies J.; Janssen, Annette B.G.; Mooij, Wolf M.; Domis, Lisette de Senerpont

doi:10.1016/j.cosust.2018.10.011

Cited by 57 publications

(27 citation statements)

References 96 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The quantification of factors, mostly abiotic, being responsible for initiating the process of eutrophication expressed also as algal blooming, has been for several decades a matter of intensive endeavor for biologists, environmentalists, and last but not the least agrochemists too (Daniel et al 1998;Conley et al 2009;Ferreira et al 2011;Qina et al 2014;Panepinto et al 2016). The relationship cause to effect of this process focuses much more on parameters such as nitrogen (N), phosphorus (P), N/P ratio, and dissolved organic substances (DOS) (Le et al 2010;van Roon 2011;Järveläinena et al 2017;Teurlincx et al 2019) than to water source, ambient temperature, pH, and decidedly P/N ratio. Scientific data are crucially scarce or lacking even about the effects or role of the latter ones as co-initiators of eutrophication.…”

Section: Discussionmentioning

confidence: 99%

Eutrophication Induction Via N/P and P/N Ratios Under Controlled Conditions—Effects of Temperature and Water Sources

Diatta

Waraczewska

Grzebisz

et al. 2020

Water Air Soil Pollut

View full text Add to dashboard Cite

The current research outlines the course of eutrophication processes emerging when some critical physical and chemical factors interact altogether. For this purpose, investigations were carried out, where nitrogen [N as (NH 4) 2 HPO 4 and KNO 3 ] and phosphorus [P as (NH 4) 2 HPO 4 ] were added to three different water sources (double distilled water, DDW; tap water, TW; and lacustrine water, LW) and the solutions were incubated at two distinct temperatures (17 and 23°C). Treatments were kept in 1 dm 3 glass jars and the incubation time lasted 7 weeks. The eutrophication process emerged only at 23°C and was stronger for the lacustrine water (LW). In the case of DDW treatments, this process was observed at N/P = 5.1 and even at 60.0, whereas for the TW, no algal blooming was detected (N/P ratio 17.7-640.0). The lacustrine water (LW) outlined patterns with strong eutrophication at N/P = 4.40, but also at ratios 20.9-71.1. Algal blooming significantly intensified according to LW > TW > DDW but was reversely dependent on the P/N ratios, which followed the range DDW (P/N, 1.6-3.78) > TW (P/N, 0.050-0.100) > LW (P/N, 0.016-0.023). At P = constant (P = 0.10 mg dm −3) and the N inputs varying from 0.010 to 2.0 mg dm −3 , it appeared that the higher the N concentrations, the more intensive the eutrophication process. For N/P ratios, phosphorus regulated for most of the intensity of the process, whereas in the case of P/N, the role of N and P was interchangeable. The main finding of the research is that nitrogen revealed in many cases to be a powerful eutrophication-regulating factor than did phosphorus.

show abstract

Section: Discussionmentioning

confidence: 99%

Eutrophication Induction Via N/P and P/N Ratios Under Controlled Conditions—Effects of Temperature and Water Sources

Diatta

Waraczewska

Grzebisz

et al. 2020

Water Air Soil Pollut

View full text Add to dashboard Cite

show abstract

“…Water quality issues related to this nutrient pollution, ranging from nitrate contamination to harmful cyanobacterial blooms, can negatively impact the use of these lakes for both recreation and livestock or wildlife drinking or habitat use [29]. Lakes in urban and peri-urban nutrient-enriched landscapes may suffer unique and potentially exacerbated water quality challenges: increased prevalence of invasive species invasion [30,31], industrial point or non-point source pollutants [32,33], and regulation/modification of flow [34]. Yet, these lakes offer close and often affordable recreational opportunities for city dwellers.…”

Section: Lake Issues In the Plainsmentioning

confidence: 99%

Definitions of Water Quality: A Survey of Lake-Users of Water Quality-Compromised Lakes

Votruba

Corman

2020

Water

View full text Add to dashboard Cite

Understanding and defining water quality is an important precursor for influencing pro-environmental behavior and accurately assessing potential outcomes of human–lake interactions. This study surveyed 82 lake-users in Nebraska regarding their definitions of water quality and the importance of various water quality features to determine if lake-users’ definitions align with complex and multi-faceted governmental and scientific definitions. Survey sites included two recreational reservoirs (e.g., boating and fishing), Holmes Lake (urban watershed) and Branched Oak Lake (agricultural watershed). The biological and chemical parameters are similar between the lakes and both lakes were listed as “impaired” on the Section 303(d) (United States Environmental Protection Agency, Washington, DC, USA) list of impaired waters of the US at the time of the surveys. The results of our survey suggest that the overwhelming majority of lake-users’ self-generated definitions of water quality did not include more than one feature of water quality found in the relevant policy and regulatory definitions and they focused primarily on water clarity. Further, when provided a list of specific water quality features, the participants rated all provided features of water quality as highly important. This suggests that the failure to include those features in a self-generated definition is not the consequence of perceiving that feature as low importance.

show abstract

“…Furthermore, the value of EC is highly affected by temperature which validates the higher value of EC in Kebena river during the dry season (Moore, Richards, and Story, 2008). Large nutrient loads of nitrogen (TN) and phosphorus (P) can have somewhat speci c routes, partially due to land use, building drainage and impermeable paved surfaces, and leaf litter dropping from cultivated trees, (Teurlincx et al, 2019;). The potential sources of phosphorus specially during the dry seasons in urban catchments might be related to wastewater disposals, and in-stream bathing and laundry activities (Dumago et al, 2018;Pieterse, Bleuten and Jørgensen, 2003;Paul and Meyer, 2001).…”

Section: Seasonal Variations Of Water Pollution In the Kebena Rivermentioning

confidence: 99%

“…To maintain the balance between nature conservation and development demand in an urban setting, watershed planning and management is becoming a key approach to minimize the impact of watershed land use on surface waters. Historically, watershed planning and management were used to solve ood-related problems (Ward et al, 2012). Currently, however, attempts are being done to study the relationship between land use, the ow and storage of water, and water quality (Doerfer and Urbonas, 2004).…”

mentioning

confidence: 99%

 the Impact of Watershed Land Use on River Water Quality: Implication for Planning in the Case of Kebena River Watershed, Addis Ababa, Ethiopia

Asnake¹,

Worku²,

Argaw³

2020

Preprint

View full text Add to dashboard Cite

Background: The impact of watershed land-use on surface water quality, especially in urbanized areas, has been investigated in numerous studies in developed countries, however, the issue is one of the under researched areas in developing cities of Africa. To study the impact of watershed land-use on surface water quality, we used the main land use types of the Kebena watershed from aerial photograph and collected river water samples during the dry and wet seasons for two consecutive years at different points from the river course. We calculated the share of each land use using ArcGIS and tested the water quality during each season. The variations in water quality parameters relating to the different land use types of the sub-watersheds were analyzed using ANOVA. Results: Kebena watershed is mainly covered by 39.14% forest, 32.51% built-up area and 27.25% cultivated land. At sub-catchment level, Denkaka, (agriculture dominated) sub-catchment with 44.90 % cultivated land, Little Kebena, (forest dominated) sub-catchment, with 60.87% forest cover and Ginfle (urban dominated) sub-catchment with 90.44% built-up area were identified. The variations in water quality parameters relating to the different land use types of Kebena watershed revealed the significantly high seasonal relationship between the concentration of the water quality indicators during the dry season at (P<0.001, P<0.05). Furthermore, there is a strong positive relationship between the urban and forest dominated sub-catchments and water quality indicators during both the wet and dry seasons than agriculture dominated sub-catchment.Conclusion: Integrating watershed planning with land use planning, therefore, becomes one of the vital tools to address water quality problems in a holistic manner to further prioritize restoration and protection strategies for specific sub-catchments. Thus, in the urban dominated sub-catchment, relocating riverfront communities, providing a well-designed sewage system, applying appropriate storm water management schemes, are some of the important measures while providing wide river buffers with various vegetation cover are necessary to minimize pollutants influx to the river from the agriculture dominated sub-catchment. Furthermore, in the forested sub-catchment, applying preventive measures to retain and enhance connectivity of the existing natural green spaces through open space planning, development and management schemes is crucial.

show abstract

Towards restoring urban waters: understanding the main pressures

Cited by 57 publications

References 96 publications

Eutrophication Induction Via N/P and P/N Ratios Under Controlled Conditions—Effects of Temperature and Water Sources

Eutrophication Induction Via N/P and P/N Ratios Under Controlled Conditions—Effects of Temperature and Water Sources

Definitions of Water Quality: A Survey of Lake-Users of Water Quality-Compromised Lakes

the Impact of Watershed Land Use on River Water Quality: Implication for Planning in the Case of Kebena River Watershed, Addis Ababa, Ethiopia

Contact Info

Product

Resources

About

Towards restoring urban waters: understanding the main pressures

Cited by 57 publications

References 96 publications

Eutrophication Induction Via N/P and P/N Ratios Under Controlled Conditions—Effects of Temperature and Water Sources

Eutrophication Induction Via N/P and P/N Ratios Under Controlled Conditions—Effects of Temperature and Water Sources

Definitions of Water Quality: A Survey of Lake-Users of Water Quality-Compromised Lakes

&nbsp;the Impact of Watershed Land Use on River Water Quality: Implication for Planning in the Case of Kebena River Watershed, Addis Ababa, Ethiopia

Contact Info

Product

Resources

About

the Impact of Watershed Land Use on River Water Quality: Implication for Planning in the Case of Kebena River Watershed, Addis Ababa, Ethiopia