Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - The utility of spatial data to delineate river riparian functions and management zones
T2 - A review
AU - Stutter, M.
AU - Baggaley, N.
AU - Ó hUallacháin, D.
AU - Wang, C.
PY - 2021/2/25
Y1 - 2021/2/25
N2 - Riparian zones of rivers are transitional environments between land and water ecosystems with distinct hydrological gradients, soils and habitats strongly related to their functioning. When these functions are intact, they integrate multi-directional processes across the land-river channel (e.g. canopy shade effects on the stream, flood inundation effects on the land) with mutual beneficial effects. In many managed landscapes these functions have been degraded. To restore them, considerable efforts have been directed over the last 20 years to understand and place effective riparian ‘buffer’ zones, particularly to enhance water quality and biodiversity. Since water quality targets are not easily met by current practices in many managed landscapes (as additive pressures increase), catchment managers will have to increasingly restore riparian functions to enhance aquatic ecosystem resilience to land and climate change. Targeting effective restoration within site-specific contexts requires availability of spatial data, in combinations that inform on individual and multiple functions. There are accelerating developments with spatial data, arising from increased spatial resolution of key underlying datasets, availability of soil and landcover data and increasing secondary derived attributes. Hence, a review is timely into the best practices in the use of these data for delineating riparian functions and management zones for rivers. Our review evaluates the application of spatial data and is structured around three conceptual methods of riparian delineation; fixed width, variable width by river corridor features and variable width by context of local pressures or required outcomes. We explore process representation and incorporation into management across main riparian functions (hydrological connectivity, water quality, shading, resource transfers and habitat provision). Translating spatial data into functions informs the ability to go beyond contemporary, generally fixed width approaches using basic structural components towards planning to better target functional attributes to optimise ecosystem protection. © 2020 Elsevier B.V.
AB - Riparian zones of rivers are transitional environments between land and water ecosystems with distinct hydrological gradients, soils and habitats strongly related to their functioning. When these functions are intact, they integrate multi-directional processes across the land-river channel (e.g. canopy shade effects on the stream, flood inundation effects on the land) with mutual beneficial effects. In many managed landscapes these functions have been degraded. To restore them, considerable efforts have been directed over the last 20 years to understand and place effective riparian ‘buffer’ zones, particularly to enhance water quality and biodiversity. Since water quality targets are not easily met by current practices in many managed landscapes (as additive pressures increase), catchment managers will have to increasingly restore riparian functions to enhance aquatic ecosystem resilience to land and climate change. Targeting effective restoration within site-specific contexts requires availability of spatial data, in combinations that inform on individual and multiple functions. There are accelerating developments with spatial data, arising from increased spatial resolution of key underlying datasets, availability of soil and landcover data and increasing secondary derived attributes. Hence, a review is timely into the best practices in the use of these data for delineating riparian functions and management zones for rivers. Our review evaluates the application of spatial data and is structured around three conceptual methods of riparian delineation; fixed width, variable width by river corridor features and variable width by context of local pressures or required outcomes. We explore process representation and incorporation into management across main riparian functions (hydrological connectivity, water quality, shading, resource transfers and habitat provision). Translating spatial data into functions informs the ability to go beyond contemporary, generally fixed width approaches using basic structural components towards planning to better target functional attributes to optimise ecosystem protection. © 2020 Elsevier B.V.
KW - Buffer
KW - Management
KW - Representing functions
KW - Riparian zone
KW - Spatial datasets
KW - Aquatic ecosystems
KW - Biodiversity
KW - Catchments
KW - Climate change
KW - Flood control
KW - Floods
KW - Hydrogeology
KW - Restoration
KW - Water quality
KW - Ecosystem protection
KW - Ecosystem resilience
KW - Fixed width approach
KW - Functional attribute
KW - Hydrological connectivity
KW - Process representation
KW - Structural component
KW - Transitional environments
KW - Rivers
KW - biodiversity
KW - forest management
KW - literature review
KW - numerical model
KW - riparian forest
KW - riparian zone
KW - spatial analysis
U2 - 10.1016/j.scitotenv.2020.143982
DO - 10.1016/j.scitotenv.2020.143982
M3 - Journal article
VL - 757
JO - Science of the Total Environment
JF - Science of the Total Environment
SN - 0048-9697
M1 - 143982
ER -