Phosphorus and carbon competitive sorption-desorption and associated non-point loss respond to natural rainfall events
文献类型：期刊论文
| 作者 | Gao, Yang1,2; Zhu, Bo3 ; He, Nianpeng1; Yu, Guirui1; Wang, Tao3; Chen, Weiliang4; Tian, Jing1
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| 刊名 | JOURNAL OF HYDROLOGY
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| 出版日期 | 2014-09-19 |
| 卷号 | 517页码:447-457 |
| 关键词 | Agricultural fertilizers Leaching Carbon Phosphorus Competitive sorption-desorption |
| ISSN号 | 0022-1694 |
| 通讯作者 | Gao, Yang ; Zhu, Bo |
| 英文摘要 | Long-term application of fertilizer or manure can increase the potential for P loss risk to ground and surface waters due to C and P competitive sorption-desorption. The aim of this study was to investigate the effect of long-term agricultural fertilizer application on dissolved organic carbon (DOC) and dissolved total phosphorus (DTP) loss. The study was conducted at the Yanting Agro-Ecological Experimental Station in Sichuan Province, People's Republic of China, during the 2012 rainy season. The results show that the variations in C and P leaching effects in fertilized soils exposed to natural rainfall events. As expected, application of inorganic and organic fertilizers increases DOC and DTP concentrations in soil and decreases the C:P ratio. Similarly, application of inorganic and organic fertilizers results in greater C and P leaching than that seen in unfertilized soils. The DOC flux was higher in subsurface runoff than in overland flow. In contrast, overland flow was the main pathway for P transport; subsurface runoff accounted for a smaller proportion of the total P transport. The increase of DOC and DTP was higher after use of organic manures than after treatment with inorganic fertilizers. DOC derived from surface-applied organic manures was found to leach at higher rates than that seen for DTP derived from the same source. However, organic manure-derived DOC was found to transport from soil prior to P, when they are surface-applied, demonstrating a higher sorption affinity of P over DOC compared to inorganic fertilization. Therefore, we should pay more attention to the P mobilized through long-term fertilization and enhance the P uptake due to C and P competitive sorption-desorption, and avoid potential leaching loss of P during rainfall process. (C) 2014 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources |
| 研究领域[WOS] | Engineering ; Geology ; Water Resources |
| 关键词[WOS] | ORGANIC-MATTER ; SOUTHWESTERN CHINA ; HUMIC SUBSTANCES ; PURPLE SOIL ; PHOSPHATE ; MANAGEMENT ; DYNAMICS ; RELEASE ; WATER ; AVAILABILITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000340977000038 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/9973]  |
| 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 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Purdue Univ, USDA ARS, Natl Soil Eros Res Lab, W Lafayette, IN 47907 USA 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 4.Fujian Agr & Forestry Univ, Coll Forestry, Fuzhou 350002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Yang,Zhu, Bo,He, Nianpeng,et al. Phosphorus and carbon competitive sorption-desorption and associated non-point loss respond to natural rainfall events[J]. JOURNAL OF HYDROLOGY,2014,517:447-457. |
| APA | Gao, Yang.,Zhu, Bo.,He, Nianpeng.,Yu, Guirui.,Wang, Tao.,...&Tian, Jing.(2014).Phosphorus and carbon competitive sorption-desorption and associated non-point loss respond to natural rainfall events.JOURNAL OF HYDROLOGY,517,447-457. |
| MLA | Gao, Yang,et al."Phosphorus and carbon competitive sorption-desorption and associated non-point loss respond to natural rainfall events".JOURNAL OF HYDROLOGY 517(2014):447-457. |
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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