Implementation of a dynamic specific leaf area (SLA) into a land surface model (LSM) incorporated crop-growth model
文献类型：期刊论文
| 作者 | Li, Zhonghe1,2; Zhan, Chesheng1,4; Hu, Shi3; Ning, Like5; Wu, Lanfang1,4; Guo, Hai2,3 |
| 刊名 | COMPUTERS AND ELECTRONICS IN AGRICULTURE
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 213页码:14 |
| ISSN号 | 0168-1699 |
| 关键词 | Specific leaf area (SLA) Land surface model (LSM) Crop modeling Food crops |
| DOI | 10.1016/j.compag.2023.108238 |
| 通讯作者 | Zhan, Chesheng(zhancs@igsnrr.ac.cn) |
| 英文摘要 | Croplands exert a strong influence on the land-atmosphere coupling and the surface exchanges of heat, water vapor, and momentum. The current trend is incorporating crop models into process-based land surface models (LSMs) to capture photosynthesis, crop growth process, and yield process. However, the models still have shortcomings, such as the assumption of constant SLA tends to ignore specific leaf area (SLA) changes caused by the accumulation and transport of photosynthetic products between organs. In this study, a dynamic SLA, which is specified for each crop, was implemented in the Noah-Multiparameterization Land Surface Model (Noah-MPCrop), a coupled-crop-land-surface model, with the aim of improving the accuracy of estimated leaf area index (LAI) and above-ground biomass (leaf, stem and grain yield) of crops (maize, rice, soybean and winter wheat) in China. By including the dynamic SLA, the new model (Noah-MP-Crop(sla)) is more than qualified for capturing the measured variability in LAI and crops' above-ground biomass, with the mean d(im) (Willmott's index of agreement for the dynamic SLA scheme) of the four crops were all above 0.7. A remarkable improvement in the simulations of crop LAI and above-ground biomass were found during the crop's jointing stage as indicated by the mean relative change rate of RMSE (RMSE% > 50%). Excluding the dynamic process of SLA will result in higher biases in the grain yield for most of the study sites. the improvement degree of crop yield was related to the improvement degree of LAI at the jointing stage (heading stage) of maize, rice and soybean (winter wheat). With the improved SLA process, the Noah-MP-Cropsla have a solid ability to capture the spatial pattern of crop yields, the R-2 of the simulated and census data of the four major crop yield in China were all above 0.5. |
| WOS关键词 | USE EFFICIENCY ; CLIMATE-CHANGE ; FOOD SECURITY ; WINTER-WHEAT ; PHENOLOGY ; WATER ; SENSITIVITY ; IMPROVE ; YIELD ; TEMPERATURES |
| 资助项目 | National Natural Science Founda- tion of China[U22A20555] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23040504] ; Natural Science Foundation Project of China[41971232] |
| WOS研究方向 | Agriculture ; Computer Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:001099381600001 |
| 资助机构 | National Natural Science Founda- tion of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Natural Science Foundation Project of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200238]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhan, Chesheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Yucheng Comprehens Expt Stn, Beijing 100101, Peoples R China 5.Tsinghua Univ, Dept Earth Syst Sci, Key Lab Earth Syst Modeling, Minist Educ, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhonghe,Zhan, Chesheng,Hu, Shi,et al. Implementation of a dynamic specific leaf area (SLA) into a land surface model (LSM) incorporated crop-growth model[J]. COMPUTERS AND ELECTRONICS IN AGRICULTURE,2023,213:14. |
| APA | Li, Zhonghe,Zhan, Chesheng,Hu, Shi,Ning, Like,Wu, Lanfang,&Guo, Hai.(2023).Implementation of a dynamic specific leaf area (SLA) into a land surface model (LSM) incorporated crop-growth model.COMPUTERS AND ELECTRONICS IN AGRICULTURE,213,14. |
| MLA | Li, Zhonghe,et al."Implementation of a dynamic specific leaf area (SLA) into a land surface model (LSM) incorporated crop-growth model".COMPUTERS AND ELECTRONICS IN AGRICULTURE 213(2023):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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