Assessment of the effective width of riparian buffer strips to reduce suspended sediment in an agricultural landscape using ANFIS and SWAT models

Sirabahenda, Zacharie; St‐Hilaire, André; Courtenay, Simon C.; Heuvel, Michael R. van den

doi:10.1016/j.catena.2020.104762

Cited by 36 publications

(18 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The second important finding was that riparian area width plays an important role in the quality of the riparian area. As other studies also found, wider widths with natural vegetation enhance the natural processes and functions of riparian areas [78,79]. Thirdly, bioindicators are also more practical and cost-effective than stream water physicochemical characteristics that are more highly variable (temporally and spatially) and require substantially more frequent measurements than bioindicators.…”

Section: Discussionmentioning

confidence: 89%

Assessing Riparian Areas of Greece—An Overview

Zaimes

Iakovoglou

2020

Sustainability

View full text Add to dashboard Cite

Riparian areas, especially in the Mediterranean, offer many ecosystem services for the welfare of society benefits from their sustainable management. This study presents different tools used to assess riparian areas of Greece and their results. Riparian areas with different land-uses/vegetation covers along streams or torrents were assessed. The assessment tools were visual protocols, bioindicators, geographic information systems (GIS), vegetation indices, and a model. These tools differ in scale, accuracy, and difficulty of implementation. The riparian areas had Low and Moderate quality in Greece because of agricultural activities and hydrologic alterations. Vegetation appeared more important for the integrity of riparian areas than stream flow (perennial or intermittent). In addition, territorial variables (distance from dam and sea) were more influential compared to climatic variables. Visual protocols and GIS were effective for preliminary assessments. GIS can be applied at a greater scale but was less accurate than the protocols. Bioindicators can provide more cost-effective monitoring than physicochemical water variables. Finally, vegetation indices and models can be used for larger spatial and temporal scales, but require specialized personnel. Overall, riparian areas of Greece seem to be degraded, and monitoring would contribute to the development of a database on riparian areas that should form the basis for sustainable management plans in Greece.

show abstract

Section: Discussionmentioning

confidence: 89%

Assessing Riparian Areas of Greece—An Overview

Zaimes

Iakovoglou

2020

Sustainability

View full text Add to dashboard Cite

show abstract

“…Sediment loading in our study was considerably higher than both Sirabahenda et al (2020) and average levels for the Dunk watershed since we were exclusively examining outputs from potato cropping systems. In Sirabahenda et al (2020), 100 m buffers removed 0.07-0.1 T ha À1 year À1 more sediment than 15 m buffers, while in our study, 100 m buffers removed 2.7 T ha À1 year À1 more sediment. Considerably more sediment mass removal is predicted in our study.…”

Section: Remm Optimal Buffer Width Incorporating Shrub Willowmentioning

confidence: 89%

“…Previous research evaluated the effectiveness of 10 m riparian buffers on PEI and found that contaminant concentrations from agricultural chemicals (pesticides, phosphorus, and nitrate‐nitrogen) and sediment were reduced by 52%, 34%, 38%, and 64% respectively, which was not enough to fully protect aquatic life (Dunn et al, 2011). A more recent study modeled effective riparian buffer width to reduce sediments from an agricultural watershed and found that 50 m is optimal for sediment retention on PEI (Sirabahenda et al, 2020). NO 3 − leaching from potato fields and contamination of both groundwater and waterways is known to be problematic on PEI even since buffer legislation was implemented in 2001 (Jiang et al, 2015; Liang et al, 2020; Zebarth & Rosen, 2007).…”

Section: Introductionmentioning

confidence: 99%

A comparison of riparian buffer designs incorporating short‐rotation Salix viminalis to mitigate surface water pollution in the Dunk River watershed on Prince Edward Island

Wilts,

Burton,

Farooque

2023

World Water Policy

View full text Add to dashboard Cite

Riparian buffers protect surface water from diffuse pollutants, mitigating sediment, nutrient, and chemical losses from agricultural landscapes. Prince Edward Island, Canada, has legislated 15‐m riparian buffers, yet stream contamination from agriculture remains widespread. The Soil and Water Assessment Tool and Riparian Ecosystem Management Model were used to simulate 12 years of nutrient and sediment loads from five potato Hydrologic Response Units in the Dunk River watershed on PEI and evaluate water quality impacts of 30 m three‐zone buffers incorporating shrub willow relative to existing 15 m grass and forest buffers and assess optimal buffer width. Willow buffers (30 m) removed 49.9 T ha−1 year−1 sediment, 18.5 kg ha−1 year−1 total N (TN) and 7.8 kg ha−1 year−1 total P (TP). This was 5.6% and 4.1% more sediment and TP than existing 15 m grass buffers and 7.5%, 12.6%, and 16.8% more sediment, TP, and TN than existing 15 m forest buffers. Willow buffers removed significantly more particulate contaminants than forest and significantly more soluble than grass. Optimal willow buffer width downslope of potato fields was 40 m. Overall, incorporating shrub willow and/or riparian widening can have considerable water quality benefits, particularly in regard to sediment retention, and maximize both soluble and particulate pollutant removal on PEI.

show abstract

“…In the model, the erosion of trapped sediment particles as bed load would significantly increase the difference between the sediment trapping capacity and the trapped sediment amount, which weakened the impact of changing sediment trapping capacity of VFS. The SWAT model applies the Modified Universal Soil Loss Equation (MUSLE) to simulate erosion and sediment transport in VFS (e.g., Himanshu et al, 2019; Sirabahenda et al, 2020; Zhang & Zhang, 2011). However, MUSLE model does not include the factor of sediment trapping capacity of VFS.…”

Section: Introductionmentioning

confidence: 99%

A trapping capacity constraint model for sediment transport in vegetative filter strips (VFS) on sloping surfaces

Chui

Chen

et al. 2023

Hydrological Processes

View full text Add to dashboard Cite

Most current modelling practices for sediment trapping in vegetative filter strips (VFS) assumed a constant sediment trapping efficiency of VFS, while, in practice, it was found to decrease greatly with the increasing trapped sediment amount in VFS (decreasing sediment trapping capacity of VFS). To account for this impact, a widely used VFS sediment transport module was modified to consider the changing sediment trapping capacity of VFS, which was expressed by a power-law relationship with the inflow discharge, sediment concentration, slope gradient, and antecedent deposition amount. An integrated model that coupled a slope infiltration-runoff module and the modified sediment transport module was then developed to simulate hydrology and suspended sediment transport in VFS on sloping surface. The model is calibrated and validated by 18 VFS experiments with different inflow, sediment, and slope conditions from Luo

show abstract

Assessment of the effective width of riparian buffer strips to reduce suspended sediment in an agricultural landscape using ANFIS and SWAT models

Cited by 36 publications

References 62 publications

Assessing Riparian Areas of Greece—An Overview

Assessing Riparian Areas of Greece—An Overview

A comparison of riparian buffer designs incorporating short‐rotation Salix viminalis to mitigate surface water pollution in the Dunk River watershed on Prince Edward Island

A trapping capacity constraint model for sediment transport in vegetative filter strips (VFS) on sloping surfaces

Contact Info

Product

Resources

About