干旱区生态环境知识资源中心(Arid): Modeling of soil available phosphorus surplus in an intensive wheat-maize rotation production area of the North China Plain

Arid

DOI	10.1016/j.agee.2018.09.023
	Modeling of soil available phosphorus surplus in an intensive wheat-maize rotation production area of the North China Plain
	Wang, Rui 1; Yao, Zhijun 1; Lei, Yuping 2
通讯作者	Wang, Rui
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN	0167-8809
EISSN	1873-2305
出版年	2019
卷号	269 页码:22-29
英文摘要	The 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.
英文关键词	Available phosphorus Fertilization Wheat-maize rotation SWAT model North China Plain
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000457948300003
WOS关键词	ASSESSMENT-TOOL SWAT ; MANAGEMENT-PRACTICES ; BAIYANGDIAN BASIN ; WATER-QUALITY ; NITROGEN ; IMPACTS ; CLIMATE ; LOSSES ; EUTROPHICATION ; CALIBRATION
WOS类目	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214044
作者单位	1.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
推荐引用方式 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]. 中国科学院地理科学与资源研究所,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.