Suburban Groundwater Quality as Influenced by Turfgrass and Septic Sources, Delmarva Peninsula, USA

Kasper, Joshua W.; Denver, Judith M.; York, Joanna K.

doi:10.2134/jeq2014.06.0280

Cited by 11 publications

(7 citation statements)

References 50 publications

(71 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Average nutrient yields in streams in urban areas are generally greater than from the limited sources typical of forested areas but may be less than from agricultural regions, particularly where row crops are produced (Table 1). Similar variability with land use has been reported for nitrate concentrations in streams (Miller et al, 1997) and contributing groundwater (Ator & Denis, 1997;Kasper, Denver, & York, 2015;Lindsey, Loper, & Hainly, 1997). Nutrient transport to groundwater and streams may therefore increase in response to urbanization of forested areas but decline where urbanization replaces former agriculture (Ator et al, 2019;Kasper et al, 2015).…”

Section: Urban Activitiessupporting

confidence: 63%

“…Similar variability with land use has been reported for nitrate concentrations in streams (Miller et al, 1997) and contributing groundwater (Ator & Denis, 1997;Kasper, Denver, & York, 2015;Lindsey, Loper, & Hainly, 1997). Nutrient transport to groundwater and streams may therefore increase in response to urbanization of forested areas but decline where urbanization replaces former agriculture (Ator et al, 2019;Kasper et al, 2015). Roberts et al (2009) predicted a net decline in average nitrogen and phosphorus flux from the watershed to Chesapeake Bay between 2000 and 2030 due to expected urbanization of agricultural areas.…”

Section: Urban Activitiessupporting

confidence: 58%

See 1 more Smart Citation

Factors driving nutrient trends in streams of the Chesapeake Bay watershed

Ator¹,

Blomquist²,

Webber³

et al. 2020

J of Env Quality

View full text Add to dashboard Cite

Despite decades of effort toward reducing nitrogen and phosphorus flux to Chesapeake Bay, water-quality and ecological responses in surface waters have been mixed. Recent research, however, provides useful insight into multiple factors complicating the understanding of nutrient trends in bay tributaries, which we review in this paper, as we approach a 2025 total maximum daily load (TMDL) management deadline. Improvements in water quality in many streams are attributable to management actions that reduced point sources and atmospheric nitrogen deposition and to changes in climate. Nutrient reductions expected from management actions, however, have not been fully realized in watershed streams. Nitrogen from urban nonpoint sources has declined, although waterquality responses to urbanization in individual streams vary depending on predevelopment land use. Evolving agriculture, the largest watershed source of nutrients, has likely contributed to local nutrient trends but has not affected substantial changes in flux to the bay. Changing average nitrogen yields from farmland underlain by carbonate rocks, however, may suggest future trends in other areas under similar management, climatic, or other influences, although drivers of these changes remain unclear. Regardless of upstream trends, phosphorus flux to the bay from its largest tributary has increased due to sediment infill in the Conowingo Reservoir. In general, recent research emphasizes the utility of input reductions over attempts to manage nutrient fate and transport at limiting nutrients in surface waters. Ongoing research opportunities include evaluating effects of climate change and conservation practices over time and space and developing tools to disentangle and evaluate multiple influences on regional water quality.

show abstract

Section: Urban Activitiessupporting

confidence: 63%

Section: Urban Activitiessupporting

confidence: 58%

Factors driving nutrient trends in streams of the Chesapeake Bay watershed

Ator¹,

Blomquist²,

Webber³

et al. 2020

J of Env Quality

View full text Add to dashboard Cite

show abstract

“…One of the contributing factor in water pollution is heavy metals which imposes high toxicity to the environment which may steered to serious health problems to the public (Ngo & Tran, 2017). Drinking water may be affected due to disease carrying agents for example bacteria and viruses are carried into the surface and ground water which may lead to health hazards result (Kasper, Joshua W., Judith M., 2015). According to UNICEF, 783 million people worldwide usually in underdeveloped countries are without safe drinking water, and the World Health Organization estimates that lack of proper drinking water causes 1.6 million deaths each year from diarrheal and parasitic diseases.…”

Section: Introductionmentioning

confidence: 99%

“…However, the quality of groundwater may be effected by natural chemical components from geologic materials (Kasper, Joshua W., Judith M., 2015). Many researchers worldwide had tried to find the solution to produce clean drinking water with only the fraction of the cost of conventional water treatment system used in a modern country including utilizing material derived from the natural environment such as activated carbon and bio-coagulants.…”

Section: Introductionmentioning

confidence: 99%

Development of Water Treatment Sachets From the Seeds of Moringa Oleifera and Activated Carbon

Zakaria

Mansor

Shahrin

2018

mijst

View full text Add to dashboard Cite

show abstract

“…As urban land cover increases, the ubiquity of intensively managed turfgrass has led to concerns about water pollution due to surface runoff and nutrient leaching (Petrovic 1990, Kasper et al 2015. Urban grasslands can contain as much N as agricultural soils due to intensive nutrient inputs, held mostly within a dense network of actively growing roots (Baer et al 2002, Raciti et al 2008, Reuben and Sorensen 2014.…”

Section: Introductionmentioning

confidence: 99%

Elevated soil nitrogen pools after conversion of turfgrass to water-efficient residential landscapes

Heavenrich

Hall

2016

Environ. Res. Lett.

View full text Add to dashboard Cite

As a result of uncertain resource availability and growing populations, city managers are implementing conservation plans that aim to provide services for people while reducing household resource use. For example, in the US, municipalities are incentivizing homeowners to replace their water-intensive turfgrass lawns with water-efficient landscapes consisting of interspersed drought-tolerant shrubs and trees with rock or mulch groundcover (e.g. xeriscapes, rain gardens, water-wise landscapes). While these strategies are likely to reduce water demand, the consequences for other ecosystem services are unclear. Previous studies in controlled, experimental landscapes have shown that conversion from turfgrass to shrubs may lead to high rates of nutrient leaching from soils. However, little is known about the longterm biogeochemical consequences of this increasingly common land cover change across diverse homeowner management practices. We explored the fate of soil nitrogen (N) across a chronosequence of land cover change from turfgrass to water-efficient landscapes in privately owned yards in metropolitan Phoenix, Arizona, in the arid US Southwest. Soil nitrate ( -NO 3 -N) pools were four times larger in water-efficient landscapes (25±4 kg -NO 3 -N/ha; 0-45 cm depth) compared to turfgrass lawns (6±7 kg -NO 3 -N/ha). Soil -NO 3 -N also varied significantly with time since landscape conversion; the largest pools occurred at 9-13 years after turfgrass removal and declined to levels comparable to turfgrass thereafter. Variation in soil -NO 3 -N with landscape age was strongly influenced by management practices related to soil water availability, including shrub cover, sub-surface plastic sheeting, and irrigation frequency. Our findings show that transitioning from turfgrass to water-efficient residential landscaping can lead to an accumulation of -NO 3 -N that may be lost from the plant rooting zone over time following irrigation or rainfall. These results have implications for best management practices to optimize the benefits of water-conserving landscapes while protecting water quality.

show abstract

Suburban Groundwater Quality as Influenced by Turfgrass and Septic Sources, Delmarva Peninsula, USA

Abstract: Abbreviations: bls, below land surface; MCL, maximum contaminant level; TMDL, total maximum daily load.

Cited by 11 publications

References 50 publications

Factors driving nutrient trends in streams of the Chesapeake Bay watershed

Factors driving nutrient trends in streams of the Chesapeake Bay watershed

Development of Water Treatment Sachets From the Seeds of Moringa Oleifera and Activated Carbon

Elevated soil nitrogen pools after conversion of turfgrass to water-efficient residential landscapes

Contact Info

Product

Resources

About