Degradation of Mcpa, Metolachlor and Propiconazole in the Hyporheic Zone of an Agriculturally Impacted River

2022 ◽  
Author(s):  
Tina Bundgaard Bech ◽  
Thomas Stherer ◽  
Rasmus Jakobsen ◽  
Nora Badawi ◽  
Morten D. Schostag ◽  
...  
Keyword(s):  
Hyporheic Zone

QUANTIFYING ATTENUATION OF HUNDREDS OF ORGANIC STORMWATER CONTAMINANTS BY A RESTORED URBAN HYPORHEIC ZONE

2018 ◽  
Author(s):  
Skuyler Herzog ◽  
◽  
Kathy Peter ◽  
Zhenyu Tian ◽  
Christopher Wu ◽  
...  
Keyword(s):  
Hyporheic Zone

Hyporheic zone processes in a canalised agricultural stream: implications for salmonid embryo survival

2010 ◽  
Vol 176 (4) ◽  
pp. 319-336 ◽  
Author(s):  
I. A. Malcolm ◽  
C. A. Middlemas ◽  
C. Soulsby ◽  
S. J. Middlemas ◽  
A. F. Youngson
Keyword(s):  
Hyporheic Zone ◽  
Embryo Survival ◽  
Agricultural Stream

scholarly journals Invertebrate and Microbial Response to Hyporheic Restoration of an Urban Stream

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 481
Author(s):  
Sarah A. Morley ◽  
Linda D. Rhodes ◽  
Anne E. Baxter ◽  
Giles W. Goetz ◽  
Abigail H. Wells ◽  
...  
Keyword(s):  
Hyporheic Zone ◽  
Habitat Diversity ◽  
Urban Stream ◽  
Floodplain Restoration ◽  
Design Elements ◽  
Biological Communities ◽  
Taxa Richness ◽  
Restoration Technique ◽  
Microbial Response ◽  
Face Complex

All cities face complex challenges managing urban stormwater while also protecting urban water bodies. Green stormwater infrastructure and process-based restoration offer alternative strategies that prioritize watershed connectivity. We report on a new urban floodplain restoration technique being tested in the City of Seattle, USA: an engineered hyporheic zone. The hyporheic zone has long been an overlooked component in floodplain restoration. Yet this subsurface area offers enormous potential for stormwater amelioration and is a critical component of healthy streams. From 2014 to 2017, we measured hyporheic temperature, nutrients, and microbial and invertebrate communities at three paired stream reaches with and without hyporheic restoration. At two of the three pairs, water temperature was significantly lower at the restored reach, while dissolved organic carbon and microbial metabolism were higher. Hyporheic invertebrate density and taxa richness were significantly higher across all three restored reaches. These are some of the first quantified responses of hyporheic biological communities to restoration. Our results complement earlier reports of enhanced hydrologic and chemical functioning of the engineered hyporheic zone. Together, this research demonstrates that incorporation of hyporheic design elements in floodplain restoration can enhance temperature moderation, habitat diversity, contaminant filtration, and the biological health of urban streams.

scholarly journals Estimates of resource transfer via winged adult insects from the hyporheic zone in a gravel‐bed river

2021 ◽  
Author(s):  
Mirza A. T. M. Tanvir Rahman ◽  
Junjiro N. Negishi ◽  
Takumi Akasaka ◽  
Futoshi Nakamura
Keyword(s):  
Hyporheic Zone ◽  
Resource Transfer ◽  
Gravel Bed ◽  
Gravel Bed River

scholarly journals Transport of zinc ions in the hyporheic zone: Experiments and simulations

2020 ◽  
Vol 146 ◽  
pp. 103775
Author(s):  
Guangqiu Jin ◽  
Zhongtian Zhang ◽  
Ruzhong Li ◽  
Chen Chen ◽  
Hongwu Tang ◽  
...  
Keyword(s):  
Hyporheic Zone ◽  
Zinc Ions

Effects of riffle–step restoration on hyporheic zone chemistry in N-rich lowland streams

2006 ◽  
Vol 63 (1) ◽  
pp. 120-133 ◽  
Author(s):  
Tamao Kasahara ◽  
Alan R Hill
Keyword(s):  
Urban Areas ◽  
Hyporheic Zone ◽  
Stream Water ◽  
Ion Concentration ◽  
Hyporheic Exchange ◽  
Ecosystem Functions ◽  
Exchange Flow ◽  
Nutrient Inputs ◽  
Lowland Streams ◽  
Hyporheic Zones

Stream restoration projects that aim to rehabilitate ecosystem health have not considered surface–subsurface linkages, although stream water and groundwater interaction has an important role in sustaining stream ecosystem functions. The present study examined the effect of constructed riffles and a step on hyporheic exchange flow and chemistry in restored reaches of several N-rich agricultural and urban streams in southern Ontario. Hydrometric data collected from a network of piezometers and conservative tracer releases indicated that the constructed riffles and steps were effective in inducing hyporheic exchange. However, despite the use of cobbles and boulders in the riffle construction, high stream dissolved oxygen (DO) concentrations were depleted rapidly with depth into the hyporheic zones. Differences between observed and predicted nitrate concentrations based on conservative ion concentration patterns indicated that these hyporheic zones were also nitrate sinks. Zones of low hydraulic conductivity and the occurrence of interstitial fines in the restored cobble-boulder layers suggest that siltation and clogging of the streambed may reduce the downwelling of oxygen- and nitrate-rich stream water. Increases in streambed DO levels and enhancement of habitat for hyporheic fauna that result from riffle–step construction projects may only be temporary in streams that receive increased sediment and nutrient inputs from urban areas and croplands.

Numerical verification of hyporheic zone depth estimation using streambed temperature

2014 ◽  
Vol 511 ◽  
pp. 861-869 ◽  
Author(s):  
Heejung Kim ◽  
Kang-Kun Lee ◽  
Jin-Yong Lee
Keyword(s):  
Hyporheic Zone ◽  
Depth Estimation ◽  
Numerical Verification ◽  
Zone Depth
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