Summary of performance data for technologies to control gaseous, odor, and particulate emissions from livestock operations: Air management practices assessment tool (AMPAT)

A hydrologic and water quality model is sought to establish an approach to land management decisions for a Canadian Army training base. Training areas are subjected to high levels of persistent activity creating unique land cover and land-use disturbances. Deforestation, complex road networks, off-road manoeuvres, and vehicle stream crossings are among major anthropogenic activities observed to affect these landscapes. Expanding, preserving and improving the quality of these areas to host training activities for future generations is critical to maintain operational effectiveness. Inclusive to this objective is minimizing resultant environmental degradation, principally in the form of hydrologic fluctuations, excess erosion, and sedimentation of aquatic environments. Application of the Soil Water Assessment Tool (SWAT) was assessed for its ability to simulate hydrologic and water quality conditions observed in military landscapes at 5th Canadian Division Support Base (5 CDSB) Gagetown, New Brunswick. Despite some limitations, this model adequately simulated three partial years of daily watershed outflow (NSE = 0.47–0.79, R2 = 0.50–0.88) and adequately predicted suspended sediment yields during the observation periods (%d = 6–47%) for one highly disturbed sub-watershed in Gagetown. Further development of this model may help guide decisions to develop or decommission training areas, guide land management practices and prioritize select landscape mitigation efforts.

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Prioritization of Sub-Watersheds to Sediment Yield and Evaluation of Best Management Practices in Highland Ethiopia, Finchaa Catchment

Land ◽

10.3390/land10060650 ◽

2021 ◽

Vol 10 (6) ◽

pp. 650

Author(s):

Wakjira Takala Dibaba ◽

Tamene Adugna Demissie ◽

Konrad Miegel

Keyword(s):

Soil Erosion ◽

Best Management Practices ◽

Sediment Yield ◽

Soil Loss ◽

Crop Production ◽

Management Practices ◽

Assessment Tool ◽

Swat Model ◽

Sediment Yields ◽

Soil And Water

Excessive soil loss and sediment yield in the highlands of Ethiopia are the primary factors that accelerate the decline of land productivity, water resources, operation and function of existing water infrastructure, as well as soil and water management practices. This study was conducted at Finchaa catchment in the Upper Blue Nile basin of Ethiopia to estimate the rate of soil erosion and sediment loss and prioritize the most sensitive sub-watersheds using the Soil and Water Assessment Tool (SWAT) model. The SWAT model was calibrated and validated using the observed streamflow and sediment data. The average annual sediment yield (SY) in Finchaa catchment for the period 1990–2015 was 36.47 ton ha−1 yr−1 with the annual yield varying from negligible to about 107.2 ton ha−1 yr−1. Five sub-basins which account for about 24.83% of the area were predicted to suffer severely from soil erosion risks, with SY in excess of 50 ton ha−1 yr−1. Only 15.05% of the area within the tolerable rate of loss (below 11 ton ha−1yr−1) was considered as the least prioritized areas for maintenance of crop production. Despite the reasonable reduction of sediment yields by the management scenarios, the reduction by contour farming, slope terracing, zero free grazing and reforestation were still above the tolerable soil loss. Vegetative contour strips and soil bund were significant in reducing SY below the tolerable soil loss, which is equivalent to 63.9% and 64.8% reduction, respectively. In general, effective and sustainable soil erosion management requires not only prioritizations of the erosion hotspots but also prioritizations of the most effective management practices. We believe that the results provided new and updated insights that enable a proactive approach to preserve the soil and reduce land degradation risks that could allow resource regeneration.

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LUU CHECKER: A Web-based Tool to Incorporate Emerging LUs in the SWAT Model

Applied Engineering in Agriculture ◽

10.13031/aea.13295 ◽

2019 ◽

Vol 35 (5) ◽

pp. 723-731 ◽

Cited By ~ 1

Author(s):

Gurdeep Singh ◽

Dharmendra Saraswat ◽

Naresh Pai ◽

Benjamin Hancock

Keyword(s):

Land Use ◽

Management Practices ◽

Assessment Tool ◽

Urban Forest ◽

Swat Model ◽

Land Use Changes ◽

Web Based ◽

Large Size ◽

Hydrologic Response Unit ◽

User Friendly

Abstract. Standard practice of setting up Soil and Water Assessment Tool (SWAT) involves use of a single land use (LU) layer under the assumption that no change takes place in LU condition irrespective of the length of simulation period. This assumption leads to erroneous conclusions about efficacy of management practices in those watersheds where land use changes (LUCs) (e.g. agriculture to urban, forest to agriculture etc.) occur during the simulation period. To overcome this limitation, we have developed a user-friendly, web-based tool named LUU Checker that helps create a composite LU layer by integrating multiple years of LU layers available in watersheds of interest. The results show that the use of composite LU layer for hydrologic response unit (HRU) delineation in 2474-km2 L’Anguile River Watershed in Arkansas was able to capture changed LU at subbasin level by using LU data available in the year 1999 and 2006, respectively. The web-based tool is applicable for large size watersheds and is accessible to multiple users from anywhere in the world. Keywords: Land use, Web-based tool, SWAT, LUU Checker.

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Application of the SWAT (Soil and Water Assessment Tool) model in the Ronnea catchment of Sweden

Global NEST Journal ◽

10.30955/gnj.000343 ◽

2013 ◽

Vol 7 (3) ◽

pp. 252-257

Keyword(s):

Input Data ◽

Management Practices ◽

Assessment Tool ◽

Swat Model ◽

Soil Parameters ◽

Daily Step ◽

Calibration And Validation ◽

The Impact ◽

Water Assessment ◽

Soil And Water

The subject of this article is the estimation of quantitative (hydrological) and qualitative parameters in the catchment of Ronnea (1800 Km2, located in south western Sweden) through the application of the Soil and Water Assessment Tool (SWAT). SWAT is a river basin model that was developed for the U.S.D.A. Agricultural Research Service, by the Blackland Research Center in Texas. The SWAT model is a widely known tool that has been used in several cases world-wide. It has the ability to predict the impact of land management practices on water, sediment and agricultural chemical yield in large complex watersheds. The present work investigates certain capabilities of the SWAT model which have not identified up to now. More in specific, the main targets of the work carried out are the following: • Identification of the existing hydrological and qualitative conditions • Preparation - Processing of data required to be used as input data of the model • Hydrological calibration - validation of the model, in 7 subbasins of the Catchment of Ronnea • Estimation and evaluation of the simulated qualitative parameters of the model All available data were offered by the relevant Institutes of Sweden, in the framework of the European program EUROHARP. The existing conditions in the catchment of Ronnea, are described in detail including topography, land uses, soil types, pollution sources, agricultural management practices, precipitation, temperature, wind speed, humidity, solar radiation as well as observed discharges and Nitrogen and Phosphorus substances concentrations. Most of the above data were used as input data for the application of SWAT model. Adequate methods were also used to complete missing values in time series and estimate additional parameters (such as soil parameters) required by the model. Hydrological calibration and validation took place for each outlet of the 7 subbasins of Ronnea catchment in an annual, monthly and daily step. The calibration was achieved by estimating parameters related to ground water movement and evaluating convergence between simulated and observed discharges by using mainly the Nash & Sutcliffe coefficient (NTD). Through the sensitivity analysis, main parameters of the hydrological simulation, were detected. According to the outputs of the SWAT model, the water balance of Ronnea catchment was also estimated. Hydrological calibration and validation is generally considered sufficient in an annual and monthly step. Hydrological calibration – validation in daily step, generally does not lead to high values of the NTD indicator. However, when compared to results obtained by the use of SWAT in Greece, a relatively high value of NTD is achieved in one subbasin. Finally, a comparison between the simulated and observed concentrations of total Phosphorus and Nitrogen was carried out.

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Estimating the cost and effectiveness of different STI management strategies for sex workers in Madagascar

10.31899/hiv2002.1002 ◽

2002 ◽

Author(s):

Keyword(s):

Sex Workers ◽

Urban Areas ◽

Management Practices ◽

Assessment Tool ◽

Management Strategies ◽

Public Health Problem ◽

Sexually Transmitted ◽

Medical Visits ◽

Syndromic Approach ◽

The Cost

In Madagascar, the prevalence of sexually transmitted infections (STIs) is a serious public health problem, particularly among sex workers. A Horizons study conducted in 2000 found approximately two-thirds of female sex workers had an STI, although few were infected with HIV. Since the link between STIs and transmission of HIV has been well established, affordable strategies to manage STIs among sex workers need to be developed. Study investigators also assessed STI management practices in health facilities in two urban areas of Madagascar. Health practitioners were using a syndromic approach, which may be appropriate for managing certain STIs in the general population but is less appropriate for sex workers who may have multiple, often asymptomatic infections. Diagnosing STIs with laboratory tests would make medical visits prohibitively expensive. Researchers developed a risk profile for various STIs based on characteristics of women that present with each STI, such as age, number of partners, symptoms. The investigators hypothesized that a risk assessment tool using these profiles would result in more appropriate and effective STI treatment for sex workers. This summary presents a cost-effectiveness analysis of different strategies to manage STIs among sex workers in Madagascar.

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Assessing the Impact of Best Management Practices in a Highly Anthropogenic and Ungauged Watershed Using the SWAT Model: A Case Study in the El Beal Watershed (Southeast Spain)

Agronomy ◽

10.3390/agronomy9100576 ◽

2019 ◽

Vol 9 (10) ◽

pp. 576 ◽

Cited By ~ 3

Author(s):

Adrián López-Ballesteros ◽

Javier Senent-Aparicio ◽

Raghavan Srinivasan ◽

Julio Pérez-Sánchez

Keyword(s):

Coastal Lagoon ◽

Best Management Practices ◽

Management Practices ◽

Assessment Tool ◽

Swat Model ◽

Fertilizer Application ◽

Coefficient Of Determination ◽

Check Dam ◽

Best Management ◽

The Impact

Best management practices (BMPs) provide a feasible solution for non-point source pollution problems. High sediment and nutrient yields without retention control result in environmental deterioration of surrounding areas. In the present study, the soil and water assessment tool (SWAT) model was developed for El Beal watershed, an anthropogenic and ungauged basin located in the southeast of Spain that drains into a coastal lagoon of high environmental value. The effectiveness of five BMPs (contour planting, filter strips, reforestation, fertilizer application and check dam restoration) was quantified, both individually and in combination, to test their impact on sediment and nutrient reduction. For calibration and validation processes, actual evapotranspiration (AET) data obtained from a remote sensing dataset called Global Land Evaporation Amsterdam Model (GLEAM) were used. The SWAT model achieved good performance in the calibration period, with statistical values of 0.78 for Kling–Gupta efficiency (KGE), 0.81 for coefficient of determination (R2), 0.58 for Nash–Sutcliffe efficiency (NSE) and 3.9% for percent bias (PBIAS), as well as in the validation period (KGE = 0.67, R2 = 0.83, NS = 0.53 and PBIAS = −25.3%). The results show that check dam restoration is the most effective BMP with a reduction of 90% in sediment yield (S), 15% in total nitrogen (TN) and 22% in total phosphorus (TP) at the watershed scale, followed by reforestation (S = 27%, TN = 16% and TP = 20%). All effectiveness values improved when BMPs were assessed in combination. The outcome of this study could provide guidance for decision makers in developing possible solutions for environmental problems in a coastal lagoon.

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Cropping system effects on soil quality in the Great Plains: Synthesis from a regional project

Renewable Agriculture and Food Systems ◽

10.1079/raf2005125 ◽

2006 ◽

Vol 21 (1) ◽

pp. 49-59 ◽

Cited By ~ 61

Author(s):

B.J. Wienhold ◽

J.L. Pikul ◽

M.A. Liebig ◽

M.M. Mikha ◽

G.E. Varvel ◽

...

Keyword(s):

Organic Matter ◽

Soil Properties ◽

Great Plains ◽

Management Practices ◽

Assessment Tool ◽

Soil Management ◽

Assessment Tools ◽

Soil Functions ◽

Organic C ◽

Environmental Function

AbstractSoils perform a number of essential functions affecting management goals. Soil functions were assessed by measuring physical, chemical, and biological properties in a regional assessment of conventional (CON) and alternative (ALT) management practices at eight sites within the Great Plains. The results, reported in accompanying papers, provide excellent data for assessing how management practices collectively affect agronomic and environmental soil functions that benefit both farmers and society. Our objective was to use the regional data as an input for two new assessment tools to evaluate their potential and sensitivity for detecting differences (aggradation or degradation) in management systems. The soil management assessment framework (SMAF) and the agro-ecosystem performance assessment tool (AEPAT) were used to score individual soil properties at each location relative to expected conditions based on inherent soil-forming factors and to compute index values that provide an overall assessment of the agronomic and environmental impact of the CON and ALT practices. SMAF index values were positively correlated with grain yield (an agronomic function) and total organic matter (an agronomic and environmental function). They were negatively correlated with soil nitrate concentration at harvest (an indicator of environmental function). There was general agreement between the two assessment tools when used to compare management practices. Users can measure a small number of soil properties and use one of these tools to easily assess the effectiveness of soil management practices. A higher score in either tool identifies more environmentally and agronomically sustainable management. Temporal variability in measured indicators makes dynamic assessments of management practices essential. Water-filled pore space, aggregate stability, particulate organic matter, and microbial biomass were sensitive to management and should be included in studies aimed at improving soil management. Reductions in both tillage and fallow combined with crop rotation has resulted in improved soil function (e.g., nutrient cycling, organic C content, and productivity) throughout the Great Plains.

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Upgraded RETOS™: An International Tool to Assess Oil Spill Response Planning and Readiness

International Oil Spill Conference Proceedings ◽

10.7901/2169-3358-2014.1.1353 ◽

2014 ◽

Vol 2014 (1) ◽

pp. 1353-1363 ◽

Cited By ~ 4

Author(s):

Elliott Taylor ◽

Miguel Moyano ◽

Alexis Steen

Keyword(s):

Oil Spill ◽

Best Management Practices ◽

Management Practices ◽

Oil And Gas ◽

Assessment Tool ◽

Assessment Tools ◽

Evaluation Tool ◽

Readiness Assessment ◽

Response Planning ◽

Oil Spill Response

ABSTRACT In 2011 the Regional Association of Oil and Gas Companies - Latin America and the Caribbean (ARPEL) developed the “Oil Spill Response Planning and Readiness Assessment Manual” and its assessment tool, the “Readiness Evaluation Tool for Oil Spills (RETOS™)” with the support of regional and international experts from industry and government, including associations such as Clean Caribbean and Americas (CCA), RAC-REMPEITC-Carib, and IMO. The ARPEL Manual and RETOS™ provide a general guide for industry and governments to assess their level of oil spill response (OSR) planning and readiness management in relation to pre-established criteria. These criteria are commonly agreed upon by the institutions involved in the project and consider international best management practices. The foundation for the ARPEL Manual's concepts and criteria is the “Assessment of Oil Spill Response Capabilities: A Proposed International Guide for Oil Spill Response Planning and Readiness Assessment”, a guideline developed for the 2008 International Oil Spill Conference. RETOS™ adapts evaluation criteria according to the type of OSR program to be assessed.Seven different scopes from two perspectives (government and industry) are considered, including facilities, companies' business lines, and government national programs.For each scope there are three possible assessment levels for which OSR planning and readiness assessment criteria become increasingly more demanding.Each level contains criteria in 10 different categories (topic areas). Training workshops on RETOS™ were held during 2011 and 2012. Field tests were conducted by experts and surveys were conducted among users including companies, governments and consultants. Feedback from workshops and the practical application of RETOS™ provided recommendations for upgrades that were reviewed by ARPEL. Subsequently, a proposal to upgrade RETOS was made to the IOSC Executive Committee, which decided to support the endeavor. This paper describes the upgraded version of RETOS and its availability. The upgraded version of RETOS™ has garnered interest from several institutions that contributed to its completion as reviewers: a global Tier 3 organization (OSRL), Caspian and Black Sea's OSPRI, GI WACAF, and IPIECA. This multi-institutional review increased awareness of these readiness assessment tools, is expected to further expand worldwide awareness of the ARPEL Manual and RETOS™, and provides improved OSR planning and readiness management for industry and governments alike. A unique tool that is freely downloadable from the internet, the upgraded RETOS™ is being launched at the 2014 IOSC.

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