Wet deposition N and its runoff flow during wheat seasons in the Tai Lake Region, China
文献类型：期刊论文
| 作者 | Tian, Yuhua; Yang, Linzhang; Yin, Bin; Zhu, Zhaoliang |
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2011-04-01 |
| 卷号 | 141期号:1-2页码:224-229 |
| 关键词 | Wet deposition NO(3)(-)-N NH(4)(+)-N Runoff flow |
| ISSN号 | 0167-8809 |
| DOI | 10.1016/j.agee.2011.02.012 |
| 通讯作者 | Yin, Bin(byin@issas.ac.cn) |
| 英文摘要 | Interest in the study of wet deposition N continues to grow for its impact on terrestrial ecosystems. Assessing the contribution of wet deposition N to intensive croplands is significant for recommending N fertilizers and minimizing environmental hazards. NH(4)(+)-N, NO(3)(-)-N, and total N concentrations in wet deposition, seasonal deposition N fluxes, and N loads in event-based runoff were determined for four consecutive wheat seasons in the Tai Lake Region. Wet deposition N during wheat seasons ranges from 11 to 15 kg ha(-1) (average, 13 kg ha(-1)), 61% of which is in the form of NH(4)(+)-N. NH(4)(+)-N concentrations range from 0.3 to 8.5 mg N L(-1) (average, 1.7 mg N L(-1)), showing greater temporal variations than do those of NO(3)(-)-N, which range from 0.2 to 4 mg N L(-1) (average, 0.8 mg N L(-1)). NH(4)(+)-N concentration in eventbased runoff from wheat fields is much lower than that in rainfall, whereas that of NO(3)(-)-N is equal to or higher than that in rainfall. N loss through runoff reaches 1.8 kg N ha(-1), accounting for 14% of wet deposition N. Results indicate that NH(4)(+)-N in wet deposition is prone to immobilization by the soil-crop system, whereas NO(3)(-)-N is relatively easily lost to runoff. The contribution of 11 kg ha(-1) wet deposition N should be adjusted in fertilizer N recommendations for winter wheat cultivation in this region. (C) 2011 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | INCREASED NITROGEN DEPOSITION ; ATMOSPHERIC DEPOSITION ; SPECIES RICHNESS ; SOUTH CHINA ; GRASSLANDS ; LOSSES ; SOIL ; AGROECOSYSTEMS ; MINERALIZATION ; (NO3-)-N-15 |
| WOS研究方向 | Agriculture ; Environmental Sciences & Ecology |
| WOS类目 | Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000291841700026 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558930 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Yin, Bin |
| 作者单位 | Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Yuhua,Yang, Linzhang,Yin, Bin,et al. Wet deposition N and its runoff flow during wheat seasons in the Tai Lake Region, China[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2011,141(1-2):224-229. |
| APA | Tian, Yuhua,Yang, Linzhang,Yin, Bin,&Zhu, Zhaoliang.(2011).Wet deposition N and its runoff flow during wheat seasons in the Tai Lake Region, China.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,141(1-2),224-229. |
| MLA | Tian, Yuhua,et al."Wet deposition N and its runoff flow during wheat seasons in the Tai Lake Region, China".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 141.1-2(2011):224-229. |
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来源：南京土壤研究所
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