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气象:2012,38(2):228-233
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东台西瓜大棚内外温度关系及高低温预警方法研究
(江苏省东台市气象局,东台 224200)
Study on Temperature of Watermelon Greenhouse and High Low Temperature Warning Method in Dongtai, Jiangsu Province
(Dongtai Meteorological Office of Jiangsu Province, Dongtai 224200)
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投稿时间:2011-04-13    修订日期:2011-12-25
中文摘要: 根据东台大棚西瓜生产普遍模式和研究目的,建立相应的试验观测站,分别选择夜间低温样本和白天晴天条件样本,对资料序列进行分析。结果表明:夜间塑料大棚内温度与外界温度密切相关;白天晴天条件下大棚内温度与外界温度、太阳高度角、太阳光通过大气对流层的斜距等因子有着显著的相关关系。运用统计回归方法建立夜间低温条件下和白天晴天条件下大棚内外温度关系,达到较高的准确率和精度;结合冻害温度指标和发生冻害的可能性大小,确定夜间低温预警指标等级及温度范围,并对白天晴天条件下大棚内指标温度出现时间进行尝试性预测,有针对性地服务于
Abstract:According to the common mode of production and the aim of research on watermelon in plastic covered greenhouse in Dongtai, a meteorological station is built. Samples of both low temperature in the nighttime and high temperature in the sunny daytime are obtained respectively. After the data sequence is studied and analyzed, it is concluded that there is a close relationship between the temperatures in and outside the plastic covered greenhouse at nighttime, and under the sunny conditions, the temperature inside has significant correlations with the external temperature, the solar altitude and the slant distance of sunlight through the atmosphere. Relationship, which is established by using the statistical regression analysis method, between the temperatures in and outside the greenhouse under both the cold conditions at nighttime and sunny day conditions, has higher precision or reaches the practical precision. Low temperature ranges of alert levels at nighttime are defined with the temperature index of freezing injury and possibility. A tentative forecast is made on the time of occurrence of index temperatures inside the greenhouse in sunny days, and thus contributes to serve the watermelon production in plastic covered greenhouse.
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基金项目:江苏农业气象服务技术研究及应用子课题(YQK2009010)资助
引用文本:
杨丽中,朱晓虎,束正勇,陈菲菲,薛德明,2012.东台西瓜大棚内外温度关系及高低温预警方法研究[J].气象,38(2):228-233.
Yang Lizhong,Zhu Xiaohu,Shu Zhengyong,Chen Feifei,Xue Deming,2012.Study on Temperature of Watermelon Greenhouse and High Low Temperature Warning Method in Dongtai, Jiangsu Province[J].Meteor Mon,38(2):228-233.