An index approach to assess nitrogen losses to the environment
| Autor: | D. Sotomayor, J. Cueto-Wong, Chunsheng Hu, Raúl Silvio Lavado, M. Shaffer, W. Colon, Helena Rimski-Korsakov, Ronald F. Follett, Xiujun Li, S. DelGrosso, P. Joosse, Jorge A. Delgado |
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| Rok vydání: | 2008 |
| Předmět: |
Environmental Engineering
Denitrification business.industry Environmental engineering chemistry.chemical_element Agricultural engineering Management Monitoring Policy and Law Ammonia volatilization from urea Nitrogen Nutrient chemistry Agriculture Environmental science Leaching (agriculture) business Groundwater Management practices Nature and Landscape Conservation |
| Zdroj: | Ecological Engineering. 32:108-120 |
| ISSN: | 0925-8574 |
| DOI: | 10.1016/j.ecoleng.2007.10.006 |
| Popis: | Nitrogen (N) losses from agriculture are negatively impacting groundwater, air, and surface water quality. New tools are needed to quickly assess these losses and provide nutrient managers and conservationists with effective tools to assess the effects of current and alternative management practices on N loss pathways. A new N-Index tool was developed in spreadsheet format, allowing prompt assessments of management practices on agricultural N losses. The N-Index tool was compared with experimental field data and shown to estimate the effects of management practices on N loss pathways (probability, P < 0.001). The N-Index correctly assessed the nitrate nitrogen (NO3-N) leaching losses when tested against measured NO3-N leaching data and atmospheric N losses collected over multiple years (annual basis) and locations. The N-Index tool was developed with international cooperation from several countries and there is potential to use this tool at the international level. |
| Databáze: | OpenAIRE |
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