Validation of Spring Wheat Responses to Elevated CO2, Irrigation, and Nitrogen Fertilization in the Community Land Model 4.5
文献类型：期刊论文
| 作者 | Lu Yaqiong2,3 ; Kimball Bruce A.1
|
| 刊名 | EARTH AND SPACE SCIENCE
 |
| 出版日期 | 2020 |
| 卷号 | 7期号:6页码:UNSP e2020EA001088 |
| 关键词 | CLM |
| ISSN号 | 0000 |
| DOI | 10.1029/2020EA001088 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The Community Land Model (CLM) started to incorporate crop growth models since version 4.0 in 2012. Since then, the crop model in CLM has been evolved remarkably, but some of the key crop growth responses to environmental conditions (such as the elevated CO2) have not been well validated. Here, we set up single point simulations with CLM (version 4.5) and validated spring wheat growth response against the Maricopa spring wheat Free Air CO2 Enrichment (FACE) experiment that consisted of multiyear paired treatments to understand the growth response to elevated CO2, irrigation, nitrogen fertilization, and their interactions. Overall, CLM showed too positive growth response to elevated CO2 but insufficient growth response to irrigation. The overestimated growth response to elevated CO2 may be due to ignoring factors (e.g., leaf traits) that will limit crop growth under elevated CO2. The insufficient response to irrigation is due to CLM simulating lower latent heat flux during April and May, which resulted in higher soil moisture. In response to nitrogen fertilization, CLM underestimated leaf area index increase but overestimated grain yield increase. In terms of energy fluxes, CLM showed decreased latent heat flux in response to elevated CO2 but increased latent heat flux in response to nitrogen fertilization, but the response magnitude was much smaller than the observations. Based on these validations, we summarized further model developments for CLM to better simulate crop growth process. |
| 电子版国际标准刊号 | 2333-5084 |
| WOS关键词 | CARBON-DIOXIDE ENRICHMENT ; STOMATAL CONDUCTANCE ; AMBIENT ATMOSPHERE ; ENERGY-BALANCE ; FACE ; CROP ; GROWTH ; PHOTOSYNTHESIS ; SIMULATION ; ECOSYS |
| 资助项目 | National Science Foundation ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA20050102] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA23060601] ; National Science Foundation (NSF)[AGS-1243095] ; National Natural Science Foundation of China[41975135] |
| WOS研究方向 | Astronomy & Astrophysics ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000545722200012 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Science Foundation ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Science Foundation (NSF) ; National Natural Science Foundation of China |
| 源URL | [http://ir.imde.ac.cn/handle/131551/35188]  |
| 专题 | 中国科学院水利部成都山地灾害与环境研究所 |
| 通讯作者 | Lu Yaqiong |
| 作者单位 | 1.U.S. AridLand Agricultural Research Center, Agricultural Research Service, USDA, Maricopa, AZ, USA 2.Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, CO, USA; 3.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China; |
| 推荐引用方式 GB/T 7714 | Lu Yaqiong,Kimball Bruce A.. Validation of Spring Wheat Responses to Elevated CO2, Irrigation, and Nitrogen Fertilization in the Community Land Model 4.5[J]. EARTH AND SPACE SCIENCE,2020,7(6):UNSP e2020EA001088. |
| APA | Lu Yaqiong,&Kimball Bruce A..(2020).Validation of Spring Wheat Responses to Elevated CO2, Irrigation, and Nitrogen Fertilization in the Community Land Model 4.5.EARTH AND SPACE SCIENCE,7(6),UNSP e2020EA001088. |
| MLA | Lu Yaqiong,et al."Validation of Spring Wheat Responses to Elevated CO2, Irrigation, and Nitrogen Fertilization in the Community Land Model 4.5".EARTH AND SPACE SCIENCE 7.6(2020):UNSP e2020EA001088. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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