Simulation of diurnal variations of CO2, water and heat fluxes over winter wheat with a model coupled photosynthesis and transpiration
文献类型：SCI/SSCI论文
| 作者 | Yu Q.; Wang J.; Li J.; Wang J.; Li J. |
| 发表日期 | 2006 |
| 关键词 | photosynthesis-transpiration coupled model CO2 flux sensible and latent heat fluxes eddy covariance method winter wheat the North China Plain stomatal conductance canopy photosynthesis leaf photosynthesis boundary-layer rice plants c-3 plants leaves evapotranspiration evaporation surface |
| 英文摘要 | A model was developed that couples canopy photosynthesis and transpiration of winter wheat. The model combined a two-layer evapotranspiration model with a coupled photosynthesis-stomatal conductance model to study the diumal variations Of CO2, water and heat fluxes of winter wheat. Field experiments were conducted in Yucheng Comprehensive Experimental Station in the North China Plain to evaluate the model. Half-hourly data of weather variables and CO2, water and heat fluxes were measured by the eddy covariance method in 2002-2003. An analysis of measured flux data showed that there was an evident midday depression of photosynthesis, caused by stomatal closure due to high vapor water deficit and canopy temperature though the soil was well irrigated. There was a close agreement between simulated and measured net radiation, CO, flux, sensible and latent heat fluxes, which proved the predictive power of the coupled photosynthesis and transpiration model. The response Of CO2 flux, canopy conductance and latent heat flux to changes in climatic factors was discussed, which indicated the model could be used to predict CO2, water and heat fluxes of wheat not only in the North China Plain, but also in other climatic regions in China. (c) 2006 Elsevier B.V. All rights reserved. |
| 出处 | Agricultural and Forest Meteorology |
| 卷 | 137 |
| 期 | 3-4 |
| 页 | 194-219 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0168-1923 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/22938]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Yu Q.,Wang J.,Li J.,et al. Simulation of diurnal variations of CO2, water and heat fluxes over winter wheat with a model coupled photosynthesis and transpiration. 2006. |
入库方式： OAI收割
来源：地理科学与资源研究所
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