Nitrate loss via overland flow and interflow from a sloped farmland in the hilly area of purple soil, China
文献类型：期刊论文
| 作者 | Wang, Tao ; Zhu, Bo
|
| 刊名 | NUTRIENT CYCLING IN AGROECOSYSTEMS
 |
| 出版日期 | 2011-07-01 |
| 卷号 | 90期号:3页码:309-319 |
| 关键词 | Sloped farmland Nitrate loss Overland flow Interflow Purple soil |
| ISSN号 | 1385-1314 |
| 通讯作者 | Zhu, B （朱波） |
| 英文摘要 | Nitrate losses through runoff (both overland flow and interflow) represent a significant portion of the nitrogen (N) biogeochemical cycle. The mechanisms of this cycle have been well documented for flat agricultural lands. It is unclear, however, how nitrate loss takes place in sloping farmlands of purple soil. This paper reports the finding of a field experiment examining nitrate losses due to overland flow and interflow along sloping farmland sites dominated by a regosol known as purple soil in the Sichuan Basin, Southwest China. During rainfall events, the nitrate contents in the overland flow initially increased and then decreased gradually, however, the nitrate contents in the interflow increased and then approached to a steady status. The average nitrate concentrations in the overland flow and the interflow were 0.7 +/- A 0.2 and 21.7 +/- A 2.1 mg N L-1, respectively. The annual nitrate loss loads through the overland flow and the interflow were 0.9 +/- A 0.1 and 33.5 +/- A 2.7 kg N ha(-1), respectively accounting for 0.6 and 22% of the fertilizer applied in the growing season. Nitrate was predominantly lost via interflow in the sloping farmland in Sichuan Basin, Southwest China. The experimental farmland was located in the upper stream of the Yangtze River, and the conclusions yielded from this study can be applied to interpreting the eutrophication and groundwater pollution patterns that are currently occurring in this watershed. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Soil Science |
| 研究领域[WOS] | Agriculture |
| 关键词[WOS] | NUTRIENT LOSSES ; WATER-QUALITY ; SICHUAN BASIN ; NEW-YORK ; LAND-USE ; NITROGEN ; POLLUTION ; RUNOFF ; CATCHMENTS ; UPLAND |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000291487500002 |
| 公开日期 | 2013-06-25 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/5505]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Environm Evolvement & Regulat, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Tao,Zhu, Bo. Nitrate loss via overland flow and interflow from a sloped farmland in the hilly area of purple soil, China[J]. NUTRIENT CYCLING IN AGROECOSYSTEMS,2011,90(3):309-319. |
| APA | Wang, Tao,&Zhu, Bo.(2011).Nitrate loss via overland flow and interflow from a sloped farmland in the hilly area of purple soil, China.NUTRIENT CYCLING IN AGROECOSYSTEMS,90(3),309-319. |
| MLA | Wang, Tao,et al."Nitrate loss via overland flow and interflow from a sloped farmland in the hilly area of purple soil, China".NUTRIENT CYCLING IN AGROECOSYSTEMS 90.3(2011):309-319. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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