| 东北地区玉米低温冷害综合指标研究 |
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| 引用本文： | 李祎君,王春乙.东北地区玉米低温冷害综合指标研究[J].自然灾害学报,2007,16(6):15-20. |
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| 作者姓名： | 李祎君 王春乙 |
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| 作者单位： | 中国气象科学研究院,北京100081 |
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| 基金项目： | 科技部农业科技成果转化基金;国家科技支撑计划 |
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| 摘 要： | 在以往对低温冷害指标研究的基础上，将低温冷害成分不同的发育阶段进行分析，结合发育期日数和初霜日研究等，讨论分析了东北地区玉米的低温冷害问题，提出一个玉米低温冷害综合指标。该指标生物学和农学意义明确，计算较为方便，便于在预报上的应用。
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| 关 键 词： | 低温冷害 综合指标 积温 负距平 生育期日数 |
| 文章编号： | 1004-4574（2007）06-0015-06 |
| 收稿时间： | 2006-10-11 |
| 修稿时间： | 2007-01-20 |
Research on comprehensive index of chilling damage to corn in Northeast China |
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| LI Yi-jun,WANG Chun-yi.Research on comprehensive index of chilling damage to corn in Northeast China[J].Journal of Natural Disasters,2007,16(6):15-20. |
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| Authors: | LI Yi-jun WANG Chun-yi |
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| Abstract: | Based on past researches on chilling damage indices, the chilling damage was analyzed for different growing stages. Combining the days of growing period and initial frosting date, the problem about chilling damage to corn in Northest China was discussed and a comprehensive chilling damage index was presented. The comprehensive index has definite biological and agricultural meanings and can be calculated and used for prediction easily. |
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| Keywords: | chilling damage comprehensive index temperature accumulation negative anomaly days of growing period |
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