| 1961-2020年华北平原冬小麦-夏玉米生长季内光能资源时空变化特征 |
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| 引用本文： | 郑诗然,胡琦,和骅芸,邢梦媛,高浩然,刘媛媛,马雪晴,潘学标.1961-2020年华北平原冬小麦-夏玉米生长季内光能资源时空变化特征[J].中国农业大学学报,2022,27(1):26-37. |
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| 作者姓名： | 郑诗然 胡琦 和骅芸 邢梦媛 高浩然 刘媛媛 马雪晴 潘学标 |
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| 作者单位： | 中国农业大学 资源与环境学院, 北京 100193;中国农业大学 资源与环境学院, 北京 100193; 中国气象局—中国农业大学农业应对气候变化联合实验室, 北京 100193 |
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| 基金项目： | 全球能源互联网集团有限公司科技项目(SGGEIG00JYJS2000053) |
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| 摘 要： | 利用华北平原具有1961-2020年完整时间序列逐日气象资料的55个常规气象站点及11个辐射观测站点的逐日地面观测资料,建立华北平原冬小麦-夏玉米生长季的太阳总辐射的经验公式,从年代际尺度和年际尺度分析冬小麦-夏玉米周年、生长季和关键生育期辐射资源(总辐射、直接辐射、散射辐射和光合有效辐射)的变化特征.结果表明:华北平...
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| 关 键 词： | 华北平原 太阳辐射 冬小麦-夏玉米轮作 生长季 |
| 收稿时间： | 2021/5/24 0:00:00 |
Temporal and spatial variation characteristics of radiation in winter wheat-summer maize growing season in the North China Plain during 1961-2020 |
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| ZHENG Shiran,HU Qi,HE Huayun,XING Mengyuan,GAO Haoran,LIU Yuanyuan,MA Xueqing,PAN Xuebiao.Temporal and spatial variation characteristics of radiation in winter wheat-summer maize growing season in the North China Plain during 1961-2020[J].Journal of China Agricultural University,2022,27(1):26-37. |
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| Authors: | ZHENG Shiran HU Qi HE Huayun XING Mengyuan GAO Haoran LIU Yuanyuan MA Xueqing PAN Xuebiao |
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| Institution: | College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China;College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; CMA-CAU Jointly Laboratory of Agriculture Addressing Climate Change, Beijing 100193, China |
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| Abstract: | Using the complete time series daily meteorological data of 55 meteorological stations and radiation data of 11 radiation observation sites with in North China Plain from 1961 to 2020, an experience formula of the surface solar radiation in the wheat-maize growing season in North China was established in this study. The variation characteristics of radiation resources(total radiation, direct radiation, scattered radiation and photosynthetically active radiation)in annual, growing season and key growth period of winter wheat-summer maize were analyzed at both interdecadal and interannual scales. The results showed that: The surface solar radiation in the North China Plain was high in the north and low in the south, and high in the east and low in the west. The annual total radiation value was between 4 519. 26-5 488. 30 MJ/m2. The solar radiation in the growing season of winter wheat and summer maize accounted for 58. 6% and 41. 4% of the whole year, respectively. The surface solar radiation in all regions showed a downward trend throughout the year. The annual global solar radiation in the study area decreased by an average of 14. 3%(708. 24 MJ/m2)during 1961-2020, and the eastern part of Henan and the western part of Hebei had the largest decline, and the climate trend rate was-210. 67 MJ/(m2·10 a). During the study period, the surface solar radiation decreased by 10. 0% and 4. 7% on average in winter wheat growing season and key growth period. Compared with winter wheat, the solar radiation decreased by 17. 8% and 17. 7% in summer maize growing season and key growth period, respectively. The surface solar radiation showed a downward trend in the whole year, the winter wheat and the growing season of summer maize of the three periods. Compared with during 1961-1980, the annual solar radiation in winter wheat and summer maize growth season in 2001-2020 decreased by 9. 6%, 7. 7% and 12. 1%, respectively. In conclusion, the direct radiation and photosynthetically active radiation(PAR)in the study area show a downward trend, while the diffuse radiation shows an upward trend. This study provides scientific basis for the rational utilization of radiation resources in North China and the formulation of countermeasures to adapt to climate change. |
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| Keywords: | North China Plain solar radiation winter wheat-summer maize rotation growing season |
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