Determination of emissions of methane and nitrous oxide in rice plantations in Guanacaste, Costa Rica
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| Nhiều tác giả: | , , , , |
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| Định dạng: | artículo original |
| Trạng thái: | Versión publicada |
| Ngày xuất bản: | 2013 |
| Miêu tả: | Methane and nitrous oxide emissions fluxes were measured in 10 rice plantations located in Liberia, Guanacaste, working at least with 04 varieties of rice and two types of soil in the period August 2012 - April 2013. For the determination of flows static camera technique were used taking four air gas samples located in the headspace of the chamber using a plastic syringe of 12 ml at 0, 10, 20 and 30 min after camera location. The gas samples were analyzed with a gas chromatograph, equipped with FID and ECD. Averages of flow methane and nitrous oxide were recorded between 0,12 to 1,9 kg ha-1d-1 and 0,11 - 1,1 mg ha-1d-1, respectively, and no significant difference was found (p < 0,05) in the values between different rice varieties and soil types subject experimental design. |
| Quốc gia: | Portal de Revistas UNA |
| Tổ chức giáo dục: | Universidad Nacional de Costa Rica |
| Repositorio: | Portal de Revistas UNA |
| Ngôn ngữ: | Español |
| OAI Identifier: | oai:ojs.www.una.ac.cr:article/7213 |
| Truy cập trực tuyến: | https://www.revistas.una.ac.cr/index.php/ambientales/article/view/7213 |
| Từ khóa: | Methane and nitrous oxide emission fluxes rice plantation Guanacaste-Costa Rica Flujos de emisión de metano y óxido nitroso cultivo de arroz |