World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Nitrogen Risk Assessment Model for Scotland: I. Nitrogen Leaching : Volume 8, Issue 2 (30/11/-0001)

By Dunn, S. M.

Click here to view

Book Id: WPLBN0003989770
Format Type: PDF Article :
File Size: Pages 14
Reproduction Date: 2015

Title: Nitrogen Risk Assessment Model for Scotland: I. Nitrogen Leaching : Volume 8, Issue 2 (30/11/-0001)  
Author: Dunn, S. M.
Volume: Vol. 8, Issue 2
Language: English
Subject: Science, Hydrology, Earth
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
-0001
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Degroote, J., Lilly, A., A. Vinte, A. J., Mcgechan, M., Sutton, M. A., & Dunn, S. M. (-0001). Nitrogen Risk Assessment Model for Scotland: I. Nitrogen Leaching : Volume 8, Issue 2 (30/11/-0001). Retrieved from http://www.ebooklibrary.org/


Description
Description: Macaulay Institute, Craigiebuckler, Aberdeen, AB15 8QH, Scotland. The Nitrogen Risk Assessment Model for Scotland (NIRAMS) has been developed for prediction of streamwater N concentrations draining from agricultural land in Scotland. The objective of the model is to predict N concentrations for ungauged catchments, to fill gaps in monitoring data and to provide guidance in relation to policy development. The model uses nationally available data sets of land use, soils, topography and meteorology and has been developed within a Geographic Information System (GIS). The model includes modules to calculate N inputs to the land, residual N remaining at the end of the growing season, weekly time-series of leached N and transport of N at the catchment scale. This paper presents the methodology for calculating N balances for different land uses and for predicting the time sequence of N leaching after the end of the growing season. Maps are presented of calculated residual N and N leaching for the whole of Scotland and the spatial variability in N leaching is discussed. The results demonstrate the high variability in N leaching across Scotland. The simulations suggest that, in the areas with greatest residual N, the losses of N are not directly proportional to the amount of residual N, because of their coincidence with lower rainfall. In the companion paper, the hydrological controls on N transport within NIRAMS are described, and results of the full model testing are presented.

Keywords: nitrogen, diffuse pollution, agriculture, leaching, land use, model, national, catchment

Summary
Nitrogen Risk Assessment Model for Scotland: I. Nitrogen leaching


 

Click To View

Additional Books


  • Hess Opinions: Hydrologic Predictions in... (by )
  • Technical NoteEarthquake Dates and Water... (by )
  • Evaluation of Radar-gauge Merging Method... (by )
  • Preface Practice and Strategies for Mana... (by )
  • A Framework for the Quantitative Assessm... (by )
  • Can Ph and Electrical Conductivity Monit... (by )
  • Residence Times and Mixing of Water in R... (by )
  • Analytical Approach for Determining the ... (by )
  • Combining Remote Sensing and Gis Climate... (by )
  • Inter-comparison of Two Land-surface Mod... (by )
  • A Global Data Set of the Extent of Irrig... (by )
  • Comparison of Three Updating Schemes Usi... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.