GREENHOUSE GAS EMISSIONS FROM A CHINAMPA SOIL OR FLOATING GARDENS IN MEXICO
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional Autónoma de México
2015
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| author | Nadia Livia ORTIZ-CORNEJO |
| author_facet | Nadia Livia ORTIZ-CORNEJO |
| contents | GREENHOUSE GAS EMISSIONS FROM A CHINAMPA SOIL OR FLOATING GARDENS IN MEXICO Nadia Livia ORTIZ-CORNEJO Marco LUNA-GUIDO Yadira RIVERA-ESPINOZA María Soledad VÁSQUEZ-MURRIETA Víctor Manuel RUÍZ-VALDIVIEZO Luc DENDOOVEN Ciencias de la Tierra GHG C sequestration fluxes of carbon dioxide global warming potential methane and nitrous oxide Agriculture in chinampas or ‘floating gardens’, is still found on the south of Mexico City, it is a high yield pre-Columbian cultivation system, which has soils enriched with organic matter. The objective of this research was to determine the greenhouse gas (GHG) emissions from a chinampa soil cultivated with amaranth (Amaranthus hypochondriacus L.), maize (Zea mays L.) or uncultivated. The soil was characterized and fluxes of GHG (CO2, N2O and CH4) were monitored for one year. The chinampa soil was alkaline saline with an organic C content that ranged from 21.7 t/ha in the 0-20 cm layer of the soil cultivated with amaranth to 28.4 t/ha in the 20-40 cm layer of the uncultivated soil. The cumulative GHG emissions (kg CO2-equivalents/ha/y) were 395, 376 and 258 for N2O, and 44, 30 and 26 for CH4 in the uncultivated, amaranth cultivated and maize cultivated soil, respectively. No significant effect of cultivated crop or soil characteristics on GHG emissions over one year was found. In general, N2O contributed 91 % and CH4 9 % to the global warming potential of the GHG. The organic C was high and distributed equally over the soil profile, because it is an anthropic soil. 2015 artículo científico 0188-4999 https://www.redalyc.org/articulo.oa?id=37043336002 https://www.redalyc.org/journal/370/37043336002/ https://www.redalyc.org/journal/370/37043336002/html/ https://www.redalyc.org/journal/370/37043336002/37043336002.epub https://www.redalyc.org/journal/370/37043336002/movil en http://www.redalyc.org/revista.oa?id=370 Revista Internacional de Contaminación Ambiental application/pdf Universidad Nacional Autónoma de México Revista Internacional de Contaminación Ambiental (México) Num.4 Vol.31 |
| format | Artículo científico |
| id | redalyc_37043336002 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | GREENHOUSE GAS EMISSIONS FROM A CHINAMPA SOIL OR FLOATING GARDENS IN MEXICO Nadia Livia ORTIZ-CORNEJO Ciencias de la Tierra GHG C sequestration fluxes of carbon dioxide global warming potential methane and nitrous oxide GREENHOUSE GAS EMISSIONS FROM A CHINAMPA SOIL OR FLOATING GARDENS IN MEXICO Nadia Livia ORTIZ-CORNEJO Marco LUNA-GUIDO Yadira RIVERA-ESPINOZA María Soledad VÁSQUEZ-MURRIETA Víctor Manuel RUÍZ-VALDIVIEZO Luc DENDOOVEN Ciencias de la Tierra GHG C sequestration fluxes of carbon dioxide global warming potential methane and nitrous oxide Agriculture in chinampas or ‘floating gardens’, is still found on the south of Mexico City, it is a high yield pre-Columbian cultivation system, which has soils enriched with organic matter. The objective of this research was to determine the greenhouse gas (GHG) emissions from a chinampa soil cultivated with amaranth (Amaranthus hypochondriacus L.), maize (Zea mays L.) or uncultivated. The soil was characterized and fluxes of GHG (CO2, N2O and CH4) were monitored for one year. The chinampa soil was alkaline saline with an organic C content that ranged from 21.7 t/ha in the 0-20 cm layer of the soil cultivated with amaranth to 28.4 t/ha in the 20-40 cm layer of the uncultivated soil. The cumulative GHG emissions (kg CO2-equivalents/ha/y) were 395, 376 and 258 for N2O, and 44, 30 and 26 for CH4 in the uncultivated, amaranth cultivated and maize cultivated soil, respectively. No significant effect of cultivated crop or soil characteristics on GHG emissions over one year was found. In general, N2O contributed 91 % and CH4 9 % to the global warming potential of the GHG. The organic C was high and distributed equally over the soil profile, because it is an anthropic soil. 2015 artículo científico 0188-4999 https://www.redalyc.org/articulo.oa?id=37043336002 https://www.redalyc.org/journal/370/37043336002/ https://www.redalyc.org/journal/370/37043336002/html/ https://www.redalyc.org/journal/370/37043336002/37043336002.epub https://www.redalyc.org/journal/370/37043336002/movil en http://www.redalyc.org/revista.oa?id=370 Revista Internacional de Contaminación Ambiental application/pdf Universidad Nacional Autónoma de México Revista Internacional de Contaminación Ambiental (México) Num.4 Vol.31 |
| title | GREENHOUSE GAS EMISSIONS FROM A CHINAMPA SOIL OR FLOATING GARDENS IN MEXICO |
| topic | Ciencias de la Tierra GHG C sequestration fluxes of carbon dioxide global warming potential methane and nitrous oxide |
| url | https://www.redalyc.org/articulo.oa?id=37043336002 https://www.redalyc.org/journal/370/37043336002/ https://www.redalyc.org/journal/370/37043336002/html/ https://www.redalyc.org/journal/370/37043336002/37043336002.epub https://www.redalyc.org/journal/370/37043336002/movil |