Efficiency assessment of best management practices in sediment reduction by investigating cost-effective tradeoffs

Wu, Lei; Liu, Xia; Chen, Junlai; Li, Jinfeng; Yang, Yu

doi:10.1016/j.agwat.2022.107546

Cited by 20 publications

(13 citation statements)

References 63 publications

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“…Regarding CF scenarios, the results of this study showed that CF was most effective in the slope range of 2 %–8 %. Similar results about CF were found in other studies ( Wu et al, 2022 ; Liu et al, 2013 ). Two agricultural BMP scenarios farmers can easily implement, CRM and FM, showed a low effect on S loads but reduced TN and TP discharge into the Mar Menor by 14.3 % and 25.2 %, and 7.7 % and 12.4 %, respectively.…”

Section: Resultssupporting

confidence: 92%

“…This could be attributed to its high level of implementation in the watershed (approximately 75 % of the CC). Similar efficiencies in reducing TN and TP were found for the CF2–8 scenario, because 2 %–8 % is the slope range where CF is usually most effective ( Wu et al, 2022 ). Furthermore, WVR was found more effective than all other individual BMP scenarios for reducing S loads.…”

Section: Discussionsupporting

confidence: 59%

“…Therefore, there is a great need to analyse the potential effectiveness of the different BMPs in reducing NPS pollution at the watershed scale to support science-informed decision-making. Thus, a comprehensive understanding of cost-effectiveness and environmental benefits is essential for decision-makers and farmers to select the most appropriate BMPs ( Wu et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Assessing the effectiveness of potential best management practices for science-informed decision support at the watershed scale: The case of the Mar Menor coastal lagoon, Spain

López-Ballesteros

Trolle²,

Srinivasan³

et al. 2023

Science of The Total Environment

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Section: Resultssupporting

confidence: 92%

Section: Discussionsupporting

confidence: 59%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Assessing the effectiveness of potential best management practices for science-informed decision support at the watershed scale: The case of the Mar Menor coastal lagoon, Spain

López-Ballesteros

Trolle²,

Srinivasan³

et al. 2023

Science of The Total Environment

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“…The main type of cultivated land in the watershed is drylands without watering facilities, which are largely dependent on rainwater. The watershed is located in a subtropical region with a continental monsoon climate (Wu et al, 2022). The soil erosion in Yanhe Watershed was severe before the 1980s owing to adverse natural circumstances and unsustainable farming practices (Yang & Lu, 2018).…”

Section: Study Area and Data Sourcesmentioning

confidence: 99%

An integrated watershed modelling framework to explore the covariation between sediment connectivity and soil erosion

Guo,

Wu,

Liu

et al. 2023

European J Soil Science

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Quantitative identification of the covariation between sediment connectivity and soil erosion can contribute to provide the key information for watershed sediment management. However, this covariation and its spatiotemporal response mechanisms are still unclear, especially whether this covariation can be used as a basis for identifying critical source areas of sediment in large‐scale ecological restored watersheds. In this study, an integrated methodology framework by the RUSLE, index of connectivity (IC), and sediment delivery ratio (SDR) was proposed to visually assess the spatiotemporal characteristics of erosion and sediment yield processes in the Yanhe Watershed with large‐scale ecological restoration from 1985 to 2020, and to identify the covariation between sediment connectivity and erosion in subbasins. The soil erosion estimated by RUSLE has decreased by over 80% since 1985 owing to increased vegetation cover and the effective implementation of soil conservation measures, but the upper reaches still have high erosion intensity due to differences in specific controlling factors such as topographic conditions and land cover, requiring focused soil conservation practice. The IC results showed that as the vegetation restoration and soil conservation measures in the Yanhe Watershed varied from year to year, their spatial and temporal patterns had a strong influence on the distribution of sediment connectivity, some local areas in the middle reaches showed local minima of IC in 1995, 1998 and 2010 mainly due to the implementation of long‐term ecological restoration project. The developed IC‐Erosion maps indicated that areas with high‐connectivity but low‐erosion accounted for over 60% of the total watershed area from 1985 to 1999, demonstrating a reverse correlation between sediment connectivity and erosion. Meanwhile, over 40% of the erosion occurred in a few areas (approximately 20%) with high‐connectivity and high‐erosion from 2000 to 2004, which can be characterized as the critical areas of erosion. The methods and results of this study provide ideas for separately defining both erosion and connectivity, and quantifying bi‐variable erosion‐connectivity classification that can be easily viewed on a scatterplot.This article is protected by copyright. All rights reserved.

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“…These BMPs have included structural interventions, for instance, constructed wetlands 1 , buffer strips, retention ponds 5 , or porous pavements 6 . They have also included non-structural BMPs, for instance, animal waste management 7 , advanced tillage systems 8 , nutrient management plans 8 , 9 , pesticide management plans 10 , planned grazing systems on pasture and rangeland 9 , erosion control 11 , and public education 9 . While the structural and non-structural management plans have been well studied, their implementation is often inhibited by limited resources, multiple conflicting criteria, cost effectiveness, and technical feasibility under specific circumstances 12 , 13 .…”

Section: Introductionmentioning

confidence: 99%

Multi-criteria decision analysis framework for engaging stakeholders in river pollution risk management

Ngubane,

Bergion,

Dzwairo

et al. 2024

Sci Rep

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Water pollution presents a substantial environmental challenge with extensive implications for water resources, ecosystem sustainability, and human health. Using a South African catchment, this study aimed to provide watershed managers with a framework for selecting best management practices (BMPs) to reduce pollution and the related risk to river users, while also including the perspectives of key catchment stakeholders. The framework encompassed the identification of and consultation with key stakeholders within the catchment. A Multi-Criteria Decision Analysis (MCDA) methodology using the Simple Multi-Attribute Rating Technique for Enhanced Stakeholder Take-up (SMARTEST) was used to identify and prioritise suitable BMPs in a case study. Decision alternatives and assessment criteria as well as their weights were derived based on stakeholder responses to a two-stage survey. Stakeholders included those utilising the river for domestic and recreational purposes, municipal representatives, scientists, NGOs, and engineers. The assessment of decision alternatives considered environmental, economic, and social criteria. The aggregated scores for decision alternatives highlighted the significance of involving stakeholders throughout the decision process. This study recommends the pairing of structural and non-structural BMPs. The findings provide valuable insights for catchment managers, policymakers, and environmental stakeholders seeking inclusive and effective pollution mitigation strategies in a catchment.

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Efficiency assessment of best management practices in sediment reduction by investigating cost-effective tradeoffs

Cited by 20 publications

References 63 publications

Assessing the effectiveness of potential best management practices for science-informed decision support at the watershed scale: The case of the Mar Menor coastal lagoon, Spain

Assessing the effectiveness of potential best management practices for science-informed decision support at the watershed scale: The case of the Mar Menor coastal lagoon, Spain

An integrated watershed modelling framework to explore the covariation between sediment connectivity and soil erosion

Multi-criteria decision analysis framework for engaging stakeholders in river pollution risk management

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