281-14 Use of Minerals Fractions As Indicators for Evaluation of the Potential Activity of Emission Areas of Greenhouse Gases.

See more from this Division: S09 Soil Mineralogy
See more from this Session: Symposium--Minerals, Nanoparticles, and Health: I
Tuesday, October 18, 2011: 12:00 PM
Henry Gonzalez Convention Center, Room 212B
Share |

José Adrián Saldaña Munive1, Miguel Angel Valera1 and Maria Tenorio- Arvide2, (1)Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
(2)Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
Due to anthropogenic factors some soil properties can be modify, particularly nitrous oxide emissions (N2O), which are associated with fertilizer application under humid conditions. The production, consumption, and transportation of NO2 is hardly influenced by soil structural changes and water content, associated with different uses of soils. Nitrous oxide, identify as greenhouse gas, can be exchange between the soil and atmosphere this process is an important factor that contributes to the global warming. The objective of the research is to evaluate the mineral fractions of different soils and test those fractions as a potential adsorbents or emitters of greenhouse gases. The results show a pH range between 3.5 to 4.2; organic carbon range 12.65 to 128.46 mg/g, and the nitrogen content range 0.01 a 0.3mg/g, and the texture is loam and silty clay loam. Also, samples of N2O emissions where collected from different soils such as Gleysols, Cambisols, and Acrisols.  Average flux gases range between 172 to 778 kg N2O-N ha-1. All dates were evaluated using analysis of variance (α= 0.05) and simple regression, the results gives positive correlation linking production and N2O emission gases, N content (p=0.00001), carbon content (p=0.0008), water retention (p=0.0013) and percentage of humidity. The sand fraction show low gas emission. On the other hand, to high percentage of clay content shows high values of gas emission, especially during the dry season. This observation suggests that gas emission depends of humid conditions.
See more from this Division: S09 Soil Mineralogy
See more from this Session: Symposium--Minerals, Nanoparticles, and Health: I