Characterisation and assessment of spatiotemporal variations in nutrient concentrations and fluxes in an urban watershed

Passaic River basin, New Jersey, USA

Jinglong Du, Huan Feng, Jing Nie, Yuanyi Li, Benjamin B. Witherell

Research output: Contribution to journalArticleResearchpeer-review

Abstract

This study investigated the spatial and temporal variations in total inorganic nitrogen (TIN) and total phosphorus (TP) and examined the relationship between water quality and urbanisation in the Passaic River watershed. The results indicate that: 1) the mean TIN and TP concentrations and fluxes showed a relatively steadily decreasing trend in last two decades; 2) TIN and TP concentrations in summer and autumn were higher than those in spring and winter, but the fluxes were lower than those in spring and winter. At the same time, TIN and TP concentrations in normal flow condition were also higher than those in storm flow condition, but the fluxes were lower than those in storm flow condition; 3) spatially, water quality in upper reaches of the rivers was better than that of middle and lower reaches, and the nutrient concentrations in water management area (WMA) 4 were the highest, followed by WMA 6 and WMA 3. Land use change, population growth, urbanisation and environmental protection investment were the main factors that influence the change of environment in the Passaic River Basin.

Original languageEnglish
Pages (from-to)154-177
Number of pages24
JournalInternational Journal of Environment and Pollution
Volume63
Issue number3
DOIs
StatePublished - 1 Jan 2018

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inorganic nitrogen
Watersheds
Catchments
Nutrients
Phosphorus
Water management
river basin
Rivers
watershed
Fluxes
phosphorus
Nitrogen
water management
nutrient
Water quality
urbanization
water quality
winter
Environmental protection
river

Keywords

  • Geographic information system
  • Passaic River
  • Spatial and temporal variations
  • Total inorganic nitrogen
  • Total phosphorus

Cite this

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title = "Characterisation and assessment of spatiotemporal variations in nutrient concentrations and fluxes in an urban watershed: Passaic River basin, New Jersey, USA",
abstract = "This study investigated the spatial and temporal variations in total inorganic nitrogen (TIN) and total phosphorus (TP) and examined the relationship between water quality and urbanisation in the Passaic River watershed. The results indicate that: 1) the mean TIN and TP concentrations and fluxes showed a relatively steadily decreasing trend in last two decades; 2) TIN and TP concentrations in summer and autumn were higher than those in spring and winter, but the fluxes were lower than those in spring and winter. At the same time, TIN and TP concentrations in normal flow condition were also higher than those in storm flow condition, but the fluxes were lower than those in storm flow condition; 3) spatially, water quality in upper reaches of the rivers was better than that of middle and lower reaches, and the nutrient concentrations in water management area (WMA) 4 were the highest, followed by WMA 6 and WMA 3. Land use change, population growth, urbanisation and environmental protection investment were the main factors that influence the change of environment in the Passaic River Basin.",
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Characterisation and assessment of spatiotemporal variations in nutrient concentrations and fluxes in an urban watershed : Passaic River basin, New Jersey, USA. / Du, Jinglong; Feng, Huan; Nie, Jing; Li, Yuanyi; Witherell, Benjamin B.

In: International Journal of Environment and Pollution, Vol. 63, No. 3, 01.01.2018, p. 154-177.

Research output: Contribution to journalArticleResearchpeer-review

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