| 马树庆,王琪,沈享文,许英子,李哲. 2003. 水稻障碍型冷害损失评估及预测动态模型研究[J]. 气象学报, 61(4):507-512, doi:10.11676/qxxb2003.051 |
| 水稻障碍型冷害损失评估及预测动态模型研究 |
| MODEL STUDY ON THE EVALUATION AND FORECAST OF LOSS FOR STERILE-TYPE COOL INJURY IN RICE PLANTS |
| 投稿时间：2002-04-10 修订日期：2003-05-14 |
| DOI：10.11676/qxxb2003.051 |
| 中文关键词: 水稻 障碍型冷害 冷积温与时积温 空壳率与减产率 动态评估模式 |
| 英文关键词:Rice rice plants Evaluating sterile-type cool injury Day cool accumulated temperature Daily sterile rate Loss rate in rice plants Evaluating model |
| 基金项目:国家十五攻关项目:重大农林病虫害及农业气象灾害控制技术研究(20001BA509B14) |
| 作者 | 单位 | | 马树庆 | 吉林省气象台, 长春, 1300622 | | 王琪 | 吉林省气象研究所, 长春, 130062 | | 沈享文 | 吉林省延边州农业气象试验站, 延吉, 133001 | | 许英子 | 吉林省延边州农业气象试验站, 延吉, 133001 | | 李哲 | 吉林省延边州农业气象试验站, 延吉, 133001 |
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| 中文摘要: |
| 在分析东北水稻生殖生长关键期低温生理反应的基础上,建立了计算日冷积温(时积温)及其与空壳率关系的模式和敏感期内每日水稻敏感群体数量比率分布标准化模式,进而建立了水稻在生殖生长关键期内因低温影响而导致空壳率及减产率评估、预测模式.该模式可较精确地计算出逐日低温导致的空壳率及减产率,可比成熟期提前25d左右进行冷害评估和损失预测. |
| 英文摘要: |
| On the basis of the of the analysis of the physiological reaction of rice reproduction to low-temperature,several models were developed in the Northeast China.They were the normal model the calculating of daily cool accumutated temperature,the relational model of the accumulated temperature and daily rice sterile rate,the normal probability distribution of the temperatare-sensitive spikelu amount in the rice reproductive growing period,and the model of the evaluation.The forecast of the sterile rate and loss rate in rice plants by the effect of the lowtemp eratwre on the rice reproduction was made with these models.The sterile rate and the yield-drop can be calculated 25 days earlier than rice mature by using daily maximum temperature,minimum temperature and several parameters.The method suited for every region of Northeast China. |
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