Modelling field scale spatial variation in water run-off, soil moisture, N(2)0 emissions and herbage biomass of a grazed pasture using the SPACSYS model
文献类型：期刊论文
| 作者 | Liu, Yi1,2; Li, Yuefen1,3; Harris, Paul1; Cardenas, Laura M.1; Dunn, Robert M.1; Sint, Hadewij1; Murray, Phil J.1; Lee, Michael R. F.1,4; Wu, Lianhai1 |
| 刊名 | GEODERMA
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 315页码:49-58 |
| ISSN号 | 0016-7061 |
| 关键词 | North Wyke Farm Platform Spatial heterogeneity Grid-to-grid simulation |
| DOI | 10.1016/j.geoderma.2017.11.029 |
| 英文摘要 | In this study, we evaluated the ability of the SPACSYS model to simulate water run-off, soil moisture, N(2)0 fluxes and grass growth using data generated from a field of the North Wyke Farm Platform. The field-scale model is adapted via a linked and grid-based approach (grid-to-grid) to account for not only temporal dynamics but also the within-field spatial variation in these key ecosystem indicators. Spatial variability in nutrient and water presence at the field-scale is a key source of uncertainty when quantifying nutrient cycling and water movement in an agricultural system. Results demonstrated that the new spatially distributed version of SPACSYS provided a worthy improvement in accuracy over the standard (single-point) version for biomass productivity. No difference in model prediction performance was observed for water run-off, reflecting the closed-system nature of this variable. Similarly, no difference in model prediction performance was found for N(2)0 fluxes, but here the N(2)0 predictions were noticeably poor in both cases. Further developmental work, informed by this study's findings, is proposed to improve model predictions for N(2)0. Soil moisture results with the spatially distributed version appeared promising but this promise could not be objectively verified. |
| 资助项目 | Biotechnology and Biological Sciences Research Council (BBSRC)[BB/J004308] ; National Natural Science Foundation of China[31670528] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000424178600006 |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/4596]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Wu, Lianhai |
| 作者单位 | 1.Rothamsted Res, Sustainable Agr Sci, Okehampton EX20 2SB, Devon, England 2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China 3.Jilin Univ, Coll Earth Sci, Changchun 130061, Jilin, Peoples R China 4.Univ Bristol, Sch Vet Sci, Langford BS40 5DU, Somerset, England |
| 推荐引用方式 GB/T 7714 | Liu, Yi,Li, Yuefen,Harris, Paul,et al. Modelling field scale spatial variation in water run-off, soil moisture, N(2)0 emissions and herbage biomass of a grazed pasture using the SPACSYS model[J]. GEODERMA,2018,315:49-58. |
| APA | Liu, Yi.,Li, Yuefen.,Harris, Paul.,Cardenas, Laura M..,Dunn, Robert M..,...&Wu, Lianhai.(2018).Modelling field scale spatial variation in water run-off, soil moisture, N(2)0 emissions and herbage biomass of a grazed pasture using the SPACSYS model.GEODERMA,315,49-58. |
| MLA | Liu, Yi,et al."Modelling field scale spatial variation in water run-off, soil moisture, N(2)0 emissions and herbage biomass of a grazed pasture using the SPACSYS model".GEODERMA 315(2018):49-58. |
入库方式： OAI收割
来源：武汉植物园
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