Nitrate and Ammonium Leaching in Variable- and Permanent-Charge Paddy Soils
文献类型：期刊论文
| 作者 | Xiong Zheng-Qin1,2; Huang Tai-Qing1; Ma Yu-Chun1; Xing Guang-Xi2; Zhu Zhao-Liang2 |
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2010-04-01 |
| 卷号 | 20期号:2页码:209-216 |
| ISSN号 | 1002-0160 |
| 关键词 | drained/flooded rotations fertilizer-derived nitrate ion movement lysimeter (15)N tracing technique |
| 通讯作者 | Xiong Zheng-Qin(zqxiong@njau.edu.cn) |
| 英文摘要 | A variable-charge (VC) and a permanent-charge paddy soil (PC) were selected to study nitrate-N (NO(3)(-)-N) and ammonium-N (NH(4)(+)-N) leaching with N isotopes for one consecutive year. An irrigation and intermittent drainage pattern was adopted to mimic natural occurrence of rainfall during the upland crop season and drainage management during the flooded rice season. Treatments to each soil type were no-N controls (CK), (15)N-labeled (NH(4))(2)SO(4) (NS), and milk vetch (NV) applied at a rate equivalent to 238 kg N ha(-1) to unplanted lysimeters, totaling six treatments in triplicates. Results indicated that the soil type dominated N leaching characteristics. In the case of PC, NO(3)(-)-N accounted for 78% of the total leached inorganic N; NS was prone to leach three times more than the NV, being 8.2% and 2.4% of added (15)N respectively; and > 85% of leached NO(3)(-)-N came from native N in the soil. In the case of VC, NH(4)(+)-N made up to 92% of the total inorganic N in leachate. Moreover, NH(4)(-)-N leaching was detected throughout the whole incubation, and was particularly high during the flooded season. NO(3)(-)-N leaching in VC occurred later at a lower rate compared to that in PC. The findings of this study indicate that NO(3)(-)-N leaching during the drained season in permanent-charge paddy soils and NH(4)(+)-N leaching in variable-charge soils deserve more attention for regional environmental control. |
| 收录类别 | SCI |
| WOS关键词 | INORGANIC NITROGEN ; FOREST SOIL ; FIELDS ; WATER ; PHOSPHATE ; LOWLAND ; TRACER ; SLUDGE ; CHINA ; OXIDE |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000276293200008 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558845 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Xiong Zheng-Qin |
| 作者单位 | 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Peoples R China 2.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 | Xiong Zheng-Qin,Huang Tai-Qing,Ma Yu-Chun,et al. Nitrate and Ammonium Leaching in Variable- and Permanent-Charge Paddy Soils[J]. PEDOSPHERE,2010,20(2):209-216. |
| APA | Xiong Zheng-Qin,Huang Tai-Qing,Ma Yu-Chun,Xing Guang-Xi,&Zhu Zhao-Liang.(2010).Nitrate and Ammonium Leaching in Variable- and Permanent-Charge Paddy Soils.PEDOSPHERE,20(2),209-216. |
| MLA | Xiong Zheng-Qin,et al."Nitrate and Ammonium Leaching in Variable- and Permanent-Charge Paddy Soils".PEDOSPHERE 20.2(2010):209-216. |
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来源：南京土壤研究所
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