Emissions of N2O from tropical forest soils: Response to fertilization with NH4+, NO3−, and PO43−
| Autor: | José M. da Costa, Michael Keller, Warren A. Kaplan, S. C. Wofsy |
|---|---|
| Rok vydání: | 1988 |
| Předmět: |
inorganic chemicals
Atmospheric Science Soil Science Rainforest Aquatic Science Oceanography chemistry.chemical_compound Human fertilization Nitrate Geochemistry and Petrology Earth and Planetary Sciences (miscellaneous) Ammonium Earth-Surface Processes Water Science and Technology Hydrology Ecology Amazon rainforest food and beverages Paleontology Biogeochemistry Forestry equipment and supplies Geophysics chemistry Agronomy Space and Planetary Science Oxisol Soil water Environmental science |
| Zdroj: | Journal of Geophysical Research. 93:1600 |
| ISSN: | 0148-0227 |
| DOI: | 10.1029/jd093id02p01600 |
| Popis: | Undisturbed oxisols in a central Amazon tropical forest were fertilized with ammonium, nitrate, or phosphate. Enhanced emissions of N2O were observed for all treatments within one day of fertilization, with the response NO3(-) much greater than NH4(+) much greater than PO4(3-). Approximately, 0.5 percent of applied NO3(-) was converted to N2O within two weeks after application, with less than 0.1 percent of the NH4(+) converted to N2O. These experiments reveal a potentially large source of N2O from microbial reduction of NO3(-) in the clay soils of Amazonia. |
| Databáze: | OpenAIRE |
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