Best management practices for coastal inlets

Shore & Beach ◽  
2020 ◽  
pp. 75-83
Author(s):  
Nicole Elko ◽  
Kimberley McKenna ◽  
Tiffany Roberts Briggs ◽  
Nicholas Brown ◽  
Michael Walther ◽  
...  
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Cost Effective ◽  
Beach Erosion ◽  
Engineering Practice ◽  
Best Management ◽  
Conservation Measures ◽  
Coastal Inlet ◽  
Inlet Conditions ◽  
Coastal Inlets

Coastal inlets separate individual barrier islands or barrier spits and adjacent headlands (Hayes and Fitzgerald 2013). Inlets modify longshore transport and store sediment in flood and ebb shoals leading to dynamic adjacent shorelines. For example, 80% to 85% of the beach erosion in Florida can be attributed to inlets (Dean 1991). In some cases, structured inlets are designed to trap sand in a preferred location to minimize interference with navigation and facilitate its removal through dredging. Sound coastal engineering practice requires that this sand be placed on adjacent eroding beaches (NRC 1995) to protect coastal resources. This paper provides a brief overview of coastal inlet management and identifies Best Management Practices (BMPs) intended to balance human needs for inlet navigation with the natural systems adjacent to tidal inlets. Today’s conservation measures, which are a result of considerable monitoring, numerical modeling, and other science-based methods, demonstrate that BMPs improve management of sand resources and reduce impacts associated with tidal inlet dredging. For some inlet conditions, BMPs include use of inlet sediment sinks as cost-effective and eco-friendly sand sources for beach nourishment projects located close to the inlet. For optimal coastal inlet management, the ASBPA Science and Technology Committee recommends the following BMPs and conservation measures: • Limit frequency and duration of impacts, • Follow environmental windows, • Implement regional sediment management, • Use beach-compatible sand, • Conduct pre-, during-, and post-dredging monitoring, • Modify dredging equipment/practices, and • Design rechargeable, low-impact inlet borrow sites.

scholarly journals Land Application of Biosolids in the USA: A Review

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Qin Lu ◽  
Zhenli L. He ◽  
Peter J. Stoffella
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Cost Effective ◽  
Land Application ◽  
Potential Threat ◽  
Best Management ◽  
Cost Effective Method ◽  
The Usa ◽  
Potential Risks

Land application of biosolids has proven a cost-effective method of waste disposal by beneficially recycling organic matter and nutrients and improving soil quality; however, it may also pose potential threat to the environment and human health. The purpose of this paper is to provide information on recent research progresses and regulation efforts regarding land application of biosolids, including forms and types and nutrient values of biosolids, environmental and health concerns, and related best management practices (BMPs) of biosolids application, with emphasis on its land application in agriculture. More research and regulations are expected to minimize potential risks of biosolids land application, especially its long-term impacts.

scholarly journals Cost-Effective Targeting for Reducing Soil Erosion in a Large Agricultural Watershed

2014 ◽  
Vol 46 (4) ◽  
pp. 509-526 ◽  
Author(s):  
Craig M. Smith ◽  
Jeffrey R. Williams ◽  
Amirpouyan Nejadhashemi ◽  
Sean A. Woznicki ◽  
John C. Leatherman
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Cost Effective ◽  
Agricultural Watershed ◽  
User Friendliness ◽  
Best Management ◽  
Cost Effective Approach ◽  
Cost Efficient ◽  
Sediment Reduction ◽  
The Cost

Erosion of agricultural croplands is a significant contributor of sedimentation to reservoirs. Here, physiographic and economic models for a large agricultural watershed (2377 square miles with 27 subwatersheds) are integrated for the reduction of sedimentation of one Midwestern reservoir. Sediment reduction and the cost-effectiveness of three agricultural best management practices (no-till, filter strip, and permanent vegetation) implementation were considered under three modeling scenarios: random assignment; the globally most cost-effective approach; and a cost-effective targeting approach. This study demonstrates how physiographic and economic data can be harnessed to yield readily comprehendible cost-effective targeting maps. Cost-effective targeting may be preferable to watershed managers for its “user-friendliness” without too great a sacrifice of the globally most cost-efficient solution.

scholarly journals Effectivity and Efficiency of Best Management Practices Based on a Survey and SWAPP Model of the Xiangxi River Basin

Water ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 985
Author(s):  
Ruimin Liu ◽  
Yuexi Miao ◽  
Qingrui Wang ◽  
Lijun Jiao ◽  
Yifan Wang ◽  
...  
Keyword(s):  
River Basin ◽  
Best Management Practices ◽  
Management Practices ◽  
Reduction Rate ◽  
Cost Effective ◽  
Upstream Region ◽  
Factors Affecting ◽  
Best Management ◽  
Xiangxi River ◽  
Piping Systems

A questionnaire survey was conducted among farmers in the Xiangxi River Basin to investigate the local livestock situation and the farmers’ understanding of and attitude towards pollution. The results showed that local farmers lacked environmental awareness and few livestock and poultry pollution treatment measures had been implemented. However, once farmers understood that livestock pollution would greatly influence their lives and interests, they would act to prevent Agricultural non–point source (ANPS) pollution. The farmers’ education level and satisfaction with the environment were the main factors affecting their awareness regarding ANPS pollution. The “Comprehensive Environmental Optimization Tool SWAT–APEX Interface” model (SWAPP) was used to simulate the reduction of ANPS by different best management practices (BMPs) and the construction cost was calculated. The results showed that compound bedding and piping systems and ponds were the most effective and economic measures for reducing ANPS pollution. Spatially, implementing BMPs in the upstream region was better for improving water quality. The nitrate reduction rate in upstream sub–basins reached 90%, which is 30% larger than that in downstream sub–basins with combined bedding and piping systems. Combining the farmers’ awareness of and engagement in livestock pollution with cost–effective BMPs can improve the BMPs’ effectivity and efficiency.

scholarly journals Best management practices for mitigating agricultural nutrient pollution in the Mun River Basin, Thailand

2021 ◽  
Author(s):  
Arika Bridhikitti ◽  
Thayukorn Prabamroong ◽  
Liu Gaohuan ◽  
Yu Guo-An
Keyword(s):  
River Basin ◽  
Best Management Practices ◽  
Water Conservation ◽  
Management Practices ◽  
Nutrient Pollution ◽  
Buffer Strips ◽  
Wet Season ◽  
Western Basin ◽  
Best Management ◽  
Conservation Measures

The Mun River in NE Thailand is one of the significant tributaries of the Lower Mekong River. Its poor river quality has been reported and agricultural activities were claimed to be major causes. This study aims to assess the best management measures appropriately responsive to the nutrient pollution in the Mun River Basin’s agricultural ecosystems. The data used for the analysis were acquired from field measurements during the 2018 wet season via satellite retrieval and secondary data collection. Linkages between land-soil datasets and hydro-water quality datasets were assessed through a canonical correlation analysis. The results suggest possible conservation measures with crop yield improvement and fertiliser cost reduction in the western basin. For the southern basin, which exhibits high sediment loading, integrated conservation measures for soil loss reduction with in-stream flow deceleration should be chosen. In the eastern basin, woody buffer strips and check dams should be prioritised. Both nutrient and sediment pollution were experienced in the middle part of the Mun River Basin and applications of low-P manure with mineral NK are recommended. Nonetheless, other soil-water conservation measures can be optionally applied to enhance the effectiveness in the watershed management.

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