Comparison of winter wheat yield sensitivity to climate variables under irrigated and rain-fed conditions
文献类型：SCI/SSCI论文
| 作者 | Xiao D. P.; Shen, Y. J.; Zhang, H.; Moiwo, J. P.; Qi, Y. Q.; Wang, R. D.; Pei, H. W.; Zhang, Y. C.; Shen, H. T.; Pei, L.
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| 发表日期 | 2016 |
| 关键词 | winter wheat yield sensitivity climate variables crop model North China Plain north china plain crop yield agricultural production models afrcwheat2 growing-season water-deficit ceres-wheat 3 decades simulation temperature |
| 英文摘要 | Crop simulation models provide alternative, less time-consuming, and cost-effective means of determining the sensitivity of crop yield to climate change. In this study, two dynamic mechanistic models, CERES (Crop Environment Resource Synthesis) and APSIM (Agricultural Production Systems Simulator), were used to simulate the yield of wheat (Triticum aestivum L.) under well irrigated (CFG) and rain-fed (YY) conditions in relation to different climate variables in the North China Plain (NCP). The study tested winter wheat yield sensitivity to different levels of temperature, radiation, precipitation, and atmospheric carbon dioxide (CO2) concentration under CFG and YY conditions at Luancheng Agro-ecosystem Experimental Stations in the NCP. The results from the CERES and APSIM wheat crop models were largely consistent and suggested that changes in climate variables influenced wheat grain yield in the NCP. There was also significant variation in the sensitivity of winter wheat yield to climate variables under different water (CFG and YY) conditions. While a temperature increase of 2A degrees C was the threshold beyond which temperature negatively influenced wheat yield under CFG, a temperature rise exceeding 1A degrees C decreased winter wheat grain yield under YY. A decrease in solar radiation decreased wheat grain yield under both CFG and YY conditions. Although the sensitivity of winter wheat yield to precipitation was small under the CFG, yield decreased significantly with decreasing precipitation under the rainfed YY treatment. The results also suggest that wheat yield under CFG linearly increased by a parts per thousand 3.5% per 60 ppm (parts per million) increase in CO2 concentration from 380 to 560 ppm, and yield under YY increased linearly by a parts per thousand 7.0% for the same increase in CO2 concentration. |
| 出处 | Frontiers of Earth Science |
| 卷 | 10 |
| 期 | 3 |
| 页 | 444-454 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 2095-0195 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/43329]  |
| 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 | Xiao D. P.,Shen, Y. J.,Zhang, H.,et al. Comparison of winter wheat yield sensitivity to climate variables under irrigated and rain-fed conditions. 2016. |
入库方式： OAI收割
来源：地理科学与资源研究所
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