Evaluation of a non-point source pollution model, AnnAGNPS, in a tropical watershed

  title={Evaluation of a non-point source pollution model, AnnAGNPS, in a tropical watershed},
  author={V. Polyakov and A. Fares and D. Kubo and J. Jacobi and C. Smith},
  journal={Environ. Model. Softw.},
Impaired water quality caused by human activity and the spread of invasive plant and animal species has been identified as a major factor of degradation of coastal ecosystems in the tropics. The main goal of this study was to evaluate the performance of AnnAGNPS (Annualized Non-Point Source Pollution Model), in simulating runoff and soil erosion in a 48km^2 watershed located on the Island of Kauai, Hawaii. The model was calibrated and validated using 2years of observed stream flow and sediment… Expand
Evaluation of the AnnAGNPS model for predicting runoff and sediment yield in a small Mediterranean agricultural watershed
AnnAGNPS (Annualized Agricultural Non-Point Source Pollution Model) is a computer model developed to predict non-point source pollutant loadings within agricultural watersheds. It contains a dailyExpand
Evaluation of AnnAGNPS and its applications in a semi-arid and semi-humid watershed in Northwest China
The main goal of this study was to evaluate the performance of AnnAGNPS (Annualised Agricultural Non-Point Source Pollution Model) in simulating runoff, sediment loading and nutrient loading in aExpand
Evaluation of runoff, peak flow and sediment yield for events simulated by the AnnAGNPS model in a belgian agricultural watershed
The AnnAGNPS model, widely utilized as a practical tool for addressing erosion problems and land use planning, was implemented in a small agricultural watershed located in central Belgium, to assessExpand
Assessment of the AnnAGNPS model in simulating runoff and nutrients in a typical small watershed in the Taihu Lake basin, China
Abstract The Annualized Agricultural Non-Point Source Pollution (AnnAGNPS) model is a distributed-parameter continuous-simulation watershed-scale model used to simulate runoff, sediment, nutrient,Expand
Assessment of Runoff and Sediment Yields Using the AnnAGNPS Model in a Three-Gorge Watershed of China
Assessment of the characteristics of soil erosion, sediment and sediment delivery of a watershed so that effective conservation measures can be implemented showed that approximately 48% of the watershed was under the soil loss tolerance released by the Ministry of Water Resources of China. Expand
Modeling runoff with AnnAGNPS model in a small agricultural catchment, in Mediterranean environment
Agricultural activities, as part of the natural resource management practice, impact soil and water quality at the watershed or catchment level. Field monitoring is often used to evaluate and acquireExpand
Evaluation of the AnnAGNPS Model for Predicting Runoff and Nutrient Export in a Typical Small Watershed in the Hilly Region of Taihu Lake
This study evaluated the ability of the Annualized Agricultural Non-Point Source (AnnAGNPS) model to predict runoff, total nitrogen (TN) and total phosphorus (TP) loading in a typical small watershed of a hilly region near Taihu Lake, China. Expand
A Modeling Approach to Water Quality Management of an Agriculturally Dominated Watershed, Kansas, USA
Impairment of water quality is a major concern for streams and rivers in the central USA. Total maximum daily loads (TMDLs) establish a watershed framework and set management targets to alleviateExpand
Evaluation of Surface Runoff Prediction by AnnAGNPS Model in a Large Mediterranean Watershed Covered by Olive Groves
The distributed parameter and continuous simulation Annualized Agricultural Non-Point Source (AnnAGNPS) model was implemented in the watershed Anzur (Spain) covered by olive groves, to assess itsExpand
Simulating the hydrological response of a small tropical forest watershed (Mata Atlantica, Brazil) by the AnnAGNPS model.
It is demonstrated that the AnnAGNPS model has reliable runoff prediction capacity in tropical forest watersheds at the annual and seasonal scales, whereas daily runoff simulations are less accurate, which may prove an important tool for water resource and territory management in tropical rainforests. Expand


Sediment and its associated pollutants entering a water body can be very destructive to the health of that system. Best Management Practices (BMPs) can be used to reduce these pollutants, butExpand
Assessment of management alternatives on a small agricultural watershed
The AGNPS model was used to assess the impact of management practices on the water quantity and quality from Owl Run, a 1153-ha watershed in the Piedmont Region of Virginia. Prior to this assessment,Expand
Calibration and validation of a non-point source pollution model
Surface runoff and sediment transport in ̄uence soil quality and the quality of receiving waters. Simulation models are useful tools to describe drainage behavior and sediment yield to developExpand
Testing and evaluation of the agricultural non-point source pollution model (AGNPS) on Augucho catchment, western Hararghe, Ethiopia
Abstract The annual soil erosion on the Ethiopian highlands is estimated at 1.5 billion tons. The poor soil management and land use practices are the causes of the high soil erosion rate. AssessmentExpand
Estimation of runoff and sediment yield in the Redrock Creek watershed using AnnAGNPS and GIS.
  • M. Tsou, X. Zhan
  • Environmental Science, Medicine
  • Journal of environmental sciences
  • 2004
The calibrated model appropriately simulated monthly runoff and sediment yield through the practices in this study and potentially suggested the ways of sediment reduction through evaluating the changes of land use and field operation in the model for the purpose of watershed management. Expand
Use of AGNPS for watershed modeling in Quebec
A study was undertaken to determine the predictive capability of the AGNPS model with respect to surface runoff, peak flow, and sediment yield produced by rainfall-runoff events on a 26 km2Expand
Watershed-scale simulation of sediment and nutrient loads in Georgia Coastal Plain streams using the annualized AGNPS model
Sediment and nutrient loadings in the Little River Research Watershed in south central Georgia were modeled using the continuous simulation Annualized Agricultural Nonpoint–Source PollutionExpand
Surface runoff, soil erosion and water quality modelling in the Alpone watershed using AGNPS integrated with a Geographic Information System
Abstract A modern approach to problems of non-point source water pollution and erosion in a watershed consists in linking distributed models to Geographic Information Systems (GIS). Water quality andExpand
Modelling nutrient transport in Currency Creek, NSW with AnnAGNPS and PEST
Despite achieving good resemblance between measured and predicted phosphorus loads the model showed high level of sensitivity to assigned pH values for topsoil, and increase in pH by one unit resulted in up to 34% increase in model generated particulate phosphorus load. Expand
A clear understanding of a model is important for its appropriate use. In this article, eleven watershed scale hydrologic and nonpoint-source pollution models are reviewed: AGNPS, AnnAGNPS, ANSWERS,Expand