Comparison of field measurements of CH4 emission from rice cultivation in Nanjing, China and in Texas, Usa
| العنوان: | Comparison of field measurements of CH4 emission from rice cultivation in Nanjing, China and in Texas, Usa |
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| المؤلفون: | Ronald L. Sass, Frank M. Fisher, Jiang Jingyan, Huang Yao, Zong Lianggang |
| المصدر: | Advances in Atmospheric Sciences. 18:1121-1130 |
| بيانات النشر: | Springer Science and Business Media LLC, 2001. |
| سنة النشر: | 2001 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Atmospheric Science, Flooding (psychology), Biomass, Growing season, Seasonality, medicine.disease, Methane, chemistry.chemical_compound, Agronomy, chemistry, Soil water, medicine, Environmental science, Paddy field, Organic matter |
| الوصف: | Field measurements of methane emission from rice paddies were made in Nanjing, China and in Texas, USA, respectively. Soil temperature at approximately 10 cm depth of the flooded soils was automatically recorded. Aboveground biomass of rice crop was measured approximately every 10 days in Nanjing and every other week in Texas. Seasonal variation of soil temperature in Nanjing was quite wide with a magnitude of 15.3°C and that in Texas was narrow with a magnitude of 2.9°C. Analysis of methane emission fluxes against soil temperature and rice biomass production demonstrated that the seasonal course of methane emission in Nanjing was mostly attributed to soil temperature changes, while that in Texas was mainly related to rice biomass production. We concluded that under the permanent flooding condition, the seasonal trend of methane emission would be determined by the soil temperature where there was a wide variation of soil temperature, and the seasonal trend would be mainly determined by rice biomass production if there are no additional organic matter inputs and the variation of soil temperature over the rice growing season is small. |
| تدمد: | 1861-9533 0256-1530 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::eb2ac84b4d9b5a74124d461596bab18eTest https://doi.org/10.1007/s00376-001-0027-zTest |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........eb2ac84b4d9b5a74124d461596bab18e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 18619533 02561530 |
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