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Modeling of soil available phosphorus surplus in an intensive wheat-maize rotation production area of the North China Plain
Wang, Rui1; Yao, Zhijun1; Lei, Yuping2
2019
Source PublicationAGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN0167-8809
Volume269Pages:22-29
Corresponding AuthorWang, Rui(wangr@igsnrr.ac.cn)
AbstractThe excessive application of phosphorus fertilizer has caused available phosphorus (AP) surplus in cultivated soils. By using the Soil and Water Assessment Tool (SWAT), the soil AP surplus and its relationship with fertilization and environmental changes was estimated for the wheat-maize rotation production area in the Baiyangdian basin, which is a typical arid region in North China Plain. Due to the little runoff, the model was validated by the measured AP concentration in deep soil profiles of the cropland. The results indicated that with an evident overuse of phosphorus fertilizer, the average rate of AP surplus in soils in the basin was about 10.3% of the applied fertilizer. A large part of the applied phosphorus (57.2%) was accumulated in active mineral forms. The phosphorus fertilizer recovery efficiency averaged 41.4%, ranging between 29.3% and 51.7%. This lower efficiency was expected to be the main reason for the serious AP surplus in cultivated soils. As a result, it was predicted that for every 100 kg ha(-1) of P fertilizer added, the AP of the plough layer (0-20 cm) will be increased by an average of 3.35 mg kg(-1) (around 10 kg P ha(-1)) in the study area. Furthermore, the soil AP surplus was predicted to reach a higher level under the condition of lower precipitation because of less runoff induced erosion and leaching to deeper layers. From 1993-2010, the soil AP accumulation was 445.7 kg ha(-1) in the study area, with an average accumulation rate of 24.8 kg ha(-1)yr(-1), which belongs to the highest level worldwide. Through combining the measured data with the simulated results, it was suggested that excessive phosphorus fertilizer application along with low phosphorus fertilizer recovery efficiency will increase the risk of P leaching, which threatens the security of groundwater.
KeywordAvailable phosphorus Fertilization Wheat-maize rotation SWAT model North China Plain
DOI10.1016/j.agee.2018.09.023
WOS KeywordASSESSMENT-TOOL SWAT ; MANAGEMENT-PRACTICES ; BAIYANGDIAN BASIN ; WATER-QUALITY ; NITROGEN ; IMPACTS ; CLIMATE ; LOSSES ; EUTROPHICATION ; CALIBRATION
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFD08001006] ; National Natural Science Foundation of China[41601021]
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China
WOS Research AreaAgriculture ; Environmental Sciences & Ecology
WOS SubjectAgriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS IDWOS:000457948300003
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/49966
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Rui
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Resources Use & Environm Remediat, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Key Lab Agr Water Resources, Hebei Key Lab Agr Water Saving, Ctr Agr Resources Res,Inst Genet & Dev Biol, Shijiazhuang 050021, Hebei, Peoples R China
Recommended Citation
GB/T 7714
Wang, Rui,Yao, Zhijun,Lei, Yuping. Modeling of soil available phosphorus surplus in an intensive wheat-maize rotation production area of the North China Plain[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2019,269:22-29.
APA Wang, Rui,Yao, Zhijun,&Lei, Yuping.(2019).Modeling of soil available phosphorus surplus in an intensive wheat-maize rotation production area of the North China Plain.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,269,22-29.
MLA Wang, Rui,et al."Modeling of soil available phosphorus surplus in an intensive wheat-maize rotation production area of the North China Plain".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 269(2019):22-29.
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