Effects of inorganic nitrogen and phosphorus enrichment on the emission of n2o from a freshwater marsh soil in northeast china
文献类型：期刊论文
| 作者 | Liu Deyan1,2; Song Changchun1 |
| 刊名 | Environmental earth sciences
 |
| 出版日期 | 2010-04-01 |
| 卷号 | 60期号:4页码:799-807 |
| 关键词 | N fertilizer P fertilizer N2o emission Soil moisture condition Wetland |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-009-0217-z |
| 通讯作者 | Song changchun(songcc@neigae.ac.cn) |
| 英文摘要 | The freshwater marshes in northern china are heavily impacted by anthropogenic disturbances such as cultivation and fertilization and increased levels of nutrients (especially n and p) through atmospheric deposition and agricultural surface runoff. these disturbances have affected the emission of n2o from these systems. this laboratory study was conducted to determine the effects of increased inputs of inorganic n and p on n2o emission from marsh soil in response to different soil moisture conditions. the results showed that the emission of n2o increased with the enhancement of n inputs when the soil was submerged, but that the highest n treatment suppressed the emission of n2o when the soil was at 60% water holding capacity (whc), which may have occurred due to an inadequate amount of available c. furthermore, the results of this study indicated that a small amount of n fertilizer induced much more n2o evolution from freshwater wetland soil, while p fertilizer inputs appeared to stimulate the emission of n2o only during the first few days of the experiment. additionally, soil that was treated with p appeared to absorb n2o when it was at 60% whc after around 6 weeks of the incubation, which indicates that the input of p fertilizer might serve as a shift of source or n2o sink in wetland soils under non-flooded conditions. when compared to soil at 60% whc, submerged soil had significantly higher n2o emissions, except when subjected to the medial n treatment. these findings indicate that the soil moisture condition had a significant effect on n2o emissions when the same amount of n or p was applied. therefore, the effects of n and p fertilization in the northern temperate wetlands cannot be neglected from regional or national emissions of n2o. |
| WOS关键词 | EVERGLADES WETLAND SOILS ; SANJIANG PLAIN ; FOREST SOILS ; FLORIDA EVERGLADES ; METHANE EMISSION ; ENZYME-ACTIVITY ; OXIDE EMISSION ; CARBON-DIOXIDE ; DENITRIFICATION ; FERTILIZER |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000275785200012 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2408543 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Song Changchun |
| 作者单位 | 1.Chinese Acad Sci, NE Inst Geog & Agr Ecol, Changchun 130012, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Deyan,Song Changchun. Effects of inorganic nitrogen and phosphorus enrichment on the emission of n2o from a freshwater marsh soil in northeast china[J]. Environmental earth sciences,2010,60(4):799-807. |
| APA | Liu Deyan,&Song Changchun.(2010).Effects of inorganic nitrogen and phosphorus enrichment on the emission of n2o from a freshwater marsh soil in northeast china.Environmental earth sciences,60(4),799-807. |
| MLA | Liu Deyan,et al."Effects of inorganic nitrogen and phosphorus enrichment on the emission of n2o from a freshwater marsh soil in northeast china".Environmental earth sciences 60.4(2010):799-807. |
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来源：中国科学院大学
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