大豆晴天群体光合作用农业气象数值模拟
AN AGROMETEOROLOGICAL MODEL OF PHOTOSYNTHESIS IN SOYBEAN CANOPY
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摘要: 运用农业气象、气象学等知识建立了一个晴天大豆群体光合农业气象数值模式.模式考虑了大豆叶片空间结构特征及本身生物学特征, 积分达到了瞬时时间尺度, 可以较准确地模拟出群体光合日变化过程, 平均模拟误差在8.7%左右, 并较好地反应了大豆群体光合午休过程.利用该模式进行数值分析, 给出了CO2、辐射及温度对群体光合午休影响的一些规律, 从而为作物超高产攻关提供了一定的理论指导.Abstract:
A numerical model for simulating the photosynthesis of soybean canopy was established. The model includes sub-models for simulating diurnal variations of radiation. Temperature and CO2 density as well as the plant physiological sub-model which includes photosynthesis and respiration of soybean leaves. The results show that the mean error is about 8.7% when it is used for simulation the diurnal variation of photosynthesis in soybean canopy, and the model can simulate the process of midday depression of photosynthesis in soybean canopy accurately. Influence of the single factor on canopy photosynthesis was given by numerical analysis using the model, which provides a theoretical basis for raising the yield of soybean in Huanghuaihai Region.
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表 1 大豆倾角叶面积分布密度(1998年7月30日)
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[1] Sinclair T R. Leaf CO2 exchange rate from post-flowering to senescence of field-grown soybean cultivars. Crop Science, 1980, 20(2):196~200. doi: 10.2135/cropsci1980.0011183X002000020012x [2] De Wit C T. Simulation of assimilation, respiration and transpiration of crops. Simulation Monographs, Pudoc, Wageningen, 1978. 1~23 [3] 傅抱璞, 翁笃鸣, 虞静明, 等.小气候学.北京:气象出版社, 1994. 181~262. [4] 蒙特思J L.植被与大气-原理.卢其尧译.北京:中国农业科学技术出版社, 1985. 15~57. [5] 彭宁德·弗里斯F W T.植物生长与作物生产的模拟.王馥棠, 王石立译.北京:科学出版社, 1988.102~185. [6] 刘建栋, 于强, 傅抱璞.黄海地区冬小麦光温生产力数值模拟研究.自然资源学报, 1999. 14(2):169~174. http://www.cnki.com.cn/Article/CJFDTOTAL-ZRZX703.012.htm [7] 左大康, 周允华, 项月琴, 等.地球表层辐射研究.北京:科学出版社, 1991. 232~238. [8] 周允华, 项月琴, 单福芝, 等.光合有效辐射(PAR)的气候学研究.气象学报, 1984, 42(4):387~397. http://www.cnki.com.cn/Article/CJFDTOTAL-QXXB198404001.htm [9] Liu Jiandong, Fu Baopu, Yu Qiang. An agrometeorological model of phy siological thermal index for winter wheat development in early stage. Acta Meteorologica Sinica, 1997, 11(4):503~512. https://www.researchgate.net/publication/289405287_AN_agrometeorological_model_of_physiological_thermal_index_for_winter_wheat_development_in_early_stage [10] 索恩利J H M.植物生理的数学模型.王天铎译.北京:科学出版社, 1983. 119~122. [11] 杨春虹.农田小麦光合生产力模拟与分析.见:中国科学院北京农业生态系统试验站编, 农田作物环境实验研究.北京:气象出版社, 1990. 193~224. [12] 韩湘铃主编.作物生态学.北京:气象出版社, 1991. 42~47.