Arid
DOI10.1007/s10705-015-9688-3
Simulation of long-term spring wheat yields, soil organic C, N and water dynamics using DSSAT-CSM in a semi-arid region of the Canadian prairies
Li, Zhuo Ting1,2; Yang, J. Y.1; Smith, W. N.3; Drury, C. F.1; Lemke, R. L.4; Grant, B.3; He, W. T.1,5; Li, Xiao Gang2
通讯作者Yang, J. Y.
来源期刊NUTRIENT CYCLING IN AGROECOSYSTEMS
ISSN1385-1314
EISSN1573-0867
出版年2015
卷号101期号:3页码:401-419
英文摘要

The overall performance of the Decision Support System for Agrotechnology Transfer-Cropping System Model (DSSAT-CSM) was evaluated for simulating wheat (Triticum aestivum L.) yield, grain N uptake, soil organic C (SOC) and N (SON), soil water and nitrate-N (NO3-N) dynamics. The data used was from a long-term (1967-2005) spring wheat experiment conducted at Swift Current, Saskatchewan in the semi-arid Canadian prairies. Four treatments were selected: (1) continuous wheat receiving N and P fertilizer, Cont-W(NP); (2) continuous wheat receiving P only, Cont-W(P); and each phase of a fallow wheat rotation receiving N and P fertilizer, (3) W-F(NP) and (4) F-W(NP). The simulated grain yields matched the measurements well, with high d (0.74-0.83) and EF (0.16-0.33). The grain N uptake was also simulated satisfactorily with RMSE of 14-17 kg N ha(-1) and d of 0.66-0.81. DSSAT simulated topsoil (0-0.15 m) SOC and SON well in the drier period (1967-1991), whereas it underestimated SOC in the more humid period (1991-2003). The DSSAT successfully simulated soil water and NO3-N dynamics in 0-0.15 m depth, whereas it overestimated soil water and NO3-N in the deep layers and consequently underestimated NO3-N leaching, suggesting that further improvements in soil water module should be made for the semi-arid climatic conditions in Canadian prairies. Sensitivity results showed that soil water content was sensitive to both lower soil water and upper drainage limits in this study. The performances of DSSAT model to yield and soil dynamics were comparable with other models.


英文关键词DSSAT-CSM Spring wheat Grain yield Soil C, N Soil water Sensitivity analysis
类型Article
语种英语
国家Canada ; Peoples R China
收录类别SCI-E
WOS记录号WOS:000351756600009
WOS关键词NITROUS-OXIDE EVOLUTION ; 1ST 12 YEARS ; SOUTHWESTERN SASKATCHEWAN ; CROP-ROTATION ; RAINFALL EVENTS ; MODEL ; FERTILIZER ; MATTER ; CARBON ; MAIZE
WOS类目Soil Science
WOS研究方向Agriculture
来源机构兰州大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/189388
作者单位1.Agr & Agri Food Canada, Greenhouse & Proc Crops Res Ctr, Harrow, ON N0R 1G0, Canada;
2.Lanzhou Univ, Sch Life Sci, State Key Lab Grassland & Agroecosyst, Lanzhou 730000, Peoples R China;
3.Agr & Agri Food Canada, Eastern Cereal & Oilseed Res Ctr, Ottawa, ON K1A 0C6, Canada;
4.Agr & Agri Food Canada, Saskatoon Res Ctr, Saskatoon, SK S7N 5A8, Canada;
5.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Plant Nutr & Fertilizers, Minist Agr, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714
Li, Zhuo Ting,Yang, J. Y.,Smith, W. N.,et al. Simulation of long-term spring wheat yields, soil organic C, N and water dynamics using DSSAT-CSM in a semi-arid region of the Canadian prairies[J]. 兰州大学,2015,101(3):401-419.
APA Li, Zhuo Ting.,Yang, J. Y..,Smith, W. N..,Drury, C. F..,Lemke, R. L..,...&Li, Xiao Gang.(2015).Simulation of long-term spring wheat yields, soil organic C, N and water dynamics using DSSAT-CSM in a semi-arid region of the Canadian prairies.NUTRIENT CYCLING IN AGROECOSYSTEMS,101(3),401-419.
MLA Li, Zhuo Ting,et al."Simulation of long-term spring wheat yields, soil organic C, N and water dynamics using DSSAT-CSM in a semi-arid region of the Canadian prairies".NUTRIENT CYCLING IN AGROECOSYSTEMS 101.3(2015):401-419.
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