Determining the Impact of Riparian Wetlands on Nutrient Cycling, Storage and Export in Permeable Agricultural Catchments

Penny Johnes, Daren Goody, Timothy Heaton, Andrew Binley, Michael Kennedy, Paul Shand, Hannah Prior

Research output: Contribution to journalArticle

3 Downloads (Pure)

Abstract

The impact of riparian wetlands on the cycling, retention and export of nutrients from land to water varies according to local environmental conditions and is poorly resolved in catchment management approaches. To determine the role a specific wetland might play in a catchment mitigation strategy, an alternative approach is needed to the high-frequency and spatially detailed monitoring programme that would otherwise be needed. Here, we present a new approach using a combination of novel and well-established geochemical, geophysical and isotope ratio methods. This combined approach was developed and tested against a 2-year high-resolution sampling programme in a lowland permeable wetland in the Lambourn catchment, UK. The monitoring programme identified multiple pathways and water sources feeding into the wetland, generating large spatial and temporal variations in nutrient cycling, retention and export behaviours within the wetland. This complexity of contributing source areas and biogeochemical functions within the wetland were effectively identified using the new toolkit approach. We propose that this technique could be used to determine the likely net source/sink function of riparian wetlands prior to their incorporation into any catchment management plan, with relatively low resource implications when compared to a full high-frequency nutrient speciation and isotope geochemistry-based monitoring approach.
Original languageEnglish
Article number167
Number of pages30
JournalWater
Volume12
Issue number1
DOIs
Publication statusPublished - 6 Jan 2020

Fingerprint

agricultural catchment
nutrient cycling
wetland
catchment
monitoring
isotope
nutrient
temporal variation
mitigation
spatial variation
geochemistry
environmental conditions
water
sampling
resource

Bibliographical note

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Keywords

  • Nitrogen
  • phosphorus
  • nutrient cycling
  • biogeochemistry
  • geochemistry
  • geophysics
  • wetlands
  • catchment management

Cite this

Determining the Impact of Riparian Wetlands on Nutrient Cycling, Storage and Export in Permeable Agricultural Catchments. / Johnes, Penny; Goody, Daren; Heaton, Timothy; Binley, Andrew; Kennedy, Michael; Shand, Paul; Prior, Hannah.

In: Water, Vol. 12, No. 1, 167, 06.01.2020.

Research output: Contribution to journalArticle

Johnes, Penny ; Goody, Daren ; Heaton, Timothy ; Binley, Andrew ; Kennedy, Michael ; Shand, Paul ; Prior, Hannah. / Determining the Impact of Riparian Wetlands on Nutrient Cycling, Storage and Export in Permeable Agricultural Catchments. In: Water. 2020 ; Vol. 12, No. 1.
@article{f9215ccfbc624733a06cf5927257fadb,
title = "Determining the Impact of Riparian Wetlands on Nutrient Cycling, Storage and Export in Permeable Agricultural Catchments",
abstract = "The impact of riparian wetlands on the cycling, retention and export of nutrients from land to water varies according to local environmental conditions and is poorly resolved in catchment management approaches. To determine the role a specific wetland might play in a catchment mitigation strategy, an alternative approach is needed to the high-frequency and spatially detailed monitoring programme that would otherwise be needed. Here, we present a new approach using a combination of novel and well-established geochemical, geophysical and isotope ratio methods. This combined approach was developed and tested against a 2-year high-resolution sampling programme in a lowland permeable wetland in the Lambourn catchment, UK. The monitoring programme identified multiple pathways and water sources feeding into the wetland, generating large spatial and temporal variations in nutrient cycling, retention and export behaviours within the wetland. This complexity of contributing source areas and biogeochemical functions within the wetland were effectively identified using the new toolkit approach. We propose that this technique could be used to determine the likely net source/sink function of riparian wetlands prior to their incorporation into any catchment management plan, with relatively low resource implications when compared to a full high-frequency nutrient speciation and isotope geochemistry-based monitoring approach.",
keywords = "Nitrogen, phosphorus, nutrient cycling, biogeochemistry, geochemistry, geophysics, wetlands, catchment management",
author = "Penny Johnes and Daren Goody and Timothy Heaton and Andrew Binley and Michael Kennedy and Paul Shand and Hannah Prior",
note = "This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.",
year = "2020",
month = "1",
day = "6",
doi = "10.3390/w12010167",
language = "English",
volume = "12",
journal = "Water",
issn = "2073-4441",
publisher = "MDPI",
number = "1",

}

TY - JOUR

T1 - Determining the Impact of Riparian Wetlands on Nutrient Cycling, Storage and Export in Permeable Agricultural Catchments

AU - Johnes, Penny

AU - Goody, Daren

AU - Heaton, Timothy

AU - Binley, Andrew

AU - Kennedy, Michael

AU - Shand, Paul

AU - Prior, Hannah

N1 - This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

PY - 2020/1/6

Y1 - 2020/1/6

N2 - The impact of riparian wetlands on the cycling, retention and export of nutrients from land to water varies according to local environmental conditions and is poorly resolved in catchment management approaches. To determine the role a specific wetland might play in a catchment mitigation strategy, an alternative approach is needed to the high-frequency and spatially detailed monitoring programme that would otherwise be needed. Here, we present a new approach using a combination of novel and well-established geochemical, geophysical and isotope ratio methods. This combined approach was developed and tested against a 2-year high-resolution sampling programme in a lowland permeable wetland in the Lambourn catchment, UK. The monitoring programme identified multiple pathways and water sources feeding into the wetland, generating large spatial and temporal variations in nutrient cycling, retention and export behaviours within the wetland. This complexity of contributing source areas and biogeochemical functions within the wetland were effectively identified using the new toolkit approach. We propose that this technique could be used to determine the likely net source/sink function of riparian wetlands prior to their incorporation into any catchment management plan, with relatively low resource implications when compared to a full high-frequency nutrient speciation and isotope geochemistry-based monitoring approach.

AB - The impact of riparian wetlands on the cycling, retention and export of nutrients from land to water varies according to local environmental conditions and is poorly resolved in catchment management approaches. To determine the role a specific wetland might play in a catchment mitigation strategy, an alternative approach is needed to the high-frequency and spatially detailed monitoring programme that would otherwise be needed. Here, we present a new approach using a combination of novel and well-established geochemical, geophysical and isotope ratio methods. This combined approach was developed and tested against a 2-year high-resolution sampling programme in a lowland permeable wetland in the Lambourn catchment, UK. The monitoring programme identified multiple pathways and water sources feeding into the wetland, generating large spatial and temporal variations in nutrient cycling, retention and export behaviours within the wetland. This complexity of contributing source areas and biogeochemical functions within the wetland were effectively identified using the new toolkit approach. We propose that this technique could be used to determine the likely net source/sink function of riparian wetlands prior to their incorporation into any catchment management plan, with relatively low resource implications when compared to a full high-frequency nutrient speciation and isotope geochemistry-based monitoring approach.

KW - Nitrogen

KW - phosphorus

KW - nutrient cycling

KW - biogeochemistry

KW - geochemistry

KW - geophysics

KW - wetlands

KW - catchment management

U2 - 10.3390/w12010167

DO - 10.3390/w12010167

M3 - Article

VL - 12

JO - Water

JF - Water

SN - 2073-4441

IS - 1

M1 - 167

ER -