| The effects of nitrogen fertilization on N2O emissions from a rubber plantation | |
Zhou, Wen-Jun ; Ji, Hong-li; Zhu, Jing; Zhang, Yi-Ping; etal
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| 2016 | |
| Source Publication | SCIENTIFIC REPORTS
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| Volume | 6Issue:xPages:29230 |
| Abstract | To gain the effects of N fertilizer applications on N2O emissions and local climate change in fertilized rubber (Hevea brasiliensis) plantations in the tropics, we measured N2O fluxes from fertilized (75 kg N ha(-1) yr(-1)) and unfertilized rubber plantations at Xishuangbanna in southwest China over a 2-year period. The N2O emissions from the fertilized and unfertilized plots were 4.0 and 2.5 kg N ha(-1) yr(-1), respectively, and the N2O emission factor was 1.96%. Soil moisture, soil temperature, and the area weighted mean ammoniacal nitrogen (NH4-N) content controlled the variations in N2O flux from the fertilized and unfertilized rubber plantations. NH4-N did not influence temporal changes in N2O emissions from the trench, slope, or terrace plots, but controlled spatial variations in N2O emissions among the treatments. On a unit area basis, the 100-year carbon dioxide equivalence of the fertilized rubber plantation N2O offsets 5.8% and 31.5% of carbon sink of the rubber plantation and local tropical rainforest, respectively. When entire land area in Xishuangbanna is considered, N2O emissions from fertilized rubber plantations offset 17.1% of the tropical rainforest's carbon sink. The results show that if tropical rainforests are converted to fertilized rubber plantations, regional N2O emissions may enhance local climate warming. |
| Keyword | Greenhouse-gas Emissions Seasonal Rain-forest Oxide Emissions Agricultural Soils Inorganic Fertilizer Microbial Biomass Southwest China Tropical Forest Fluxes Ch4 |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/9984 |
| Collection | 全球变化研究组 |
| Recommended Citation GB/T 7714 | Zhou, Wen-Jun,Ji, Hong-li,Zhu, Jing,et al. The effects of nitrogen fertilization on N2O emissions from a rubber plantation[J]. SCIENTIFIC REPORTS,2016,6(x):29230. |
| APA | Zhou, Wen-Jun,Ji, Hong-li,Zhu, Jing,Zhang, Yi-Ping,&etal.(2016).The effects of nitrogen fertilization on N2O emissions from a rubber plantation.SCIENTIFIC REPORTS,6(x),29230. |
| MLA | Zhou, Wen-Jun,et al."The effects of nitrogen fertilization on N2O emissions from a rubber plantation".SCIENTIFIC REPORTS 6.x(2016):29230. |
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