IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Phosphorus and carbon competitive sorption-desorption and associated non-point loss respond to natural rainfall events
Gao, Yang1,2; Zhu, Bo3; He, Nianpeng1; Yu, Guirui1; Wang, Tao3; Chen, Weiliang4; Tian, Jing1
Corresponding AuthorGao, Yang ; Zhu, Bo
2014-09-19
Source PublicationJOURNAL OF HYDROLOGY
ISSN0022-1694
Volume517Pages:447-457
SubtypeArticle
AbstractLong-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.
KeywordAgricultural Fertilizers Leaching Carbon Phosphorus Competitive Sorption-desorption
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.jhydrol.2014.05.057
WOS Subject ExtendedEngineering ; Geology ; Water Resources
Indexed BySCI
WOS KeywordORGANIC-MATTER ; SOUTHWESTERN CHINA ; HUMIC SUBSTANCES ; PURPLE SOIL ; PHOSPHATE ; MANAGEMENT ; DYNAMICS ; RELEASE ; WATER ; AVAILABILITY
Language英语
WOS SubjectEngineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000340977000038
Funding OrganizationNational Nature Science Foundation of China(31200404) ; Key Laboratory of Mountain Surface Processes and Ecological Regulation open fund ; Institute of Mountain Hazards and Environment, CAS(Y2R20050DD)
Citation statistics
Cited Times:28[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9973
Collection山地表生过程与生态调控重点实验室
Affiliation1.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
Recommended Citation
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.
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