| 北疆气温与棉蚜发生量之间关系的探讨 |
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| 引用本文： | 罗亮,马德英,苗伟,吕昭智,王登元.北疆气温与棉蚜发生量之间关系的探讨[J].新疆农业科学,2007,44(4):423-428. |
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| 作者姓名： | 罗亮 马德英 苗伟 吕昭智 王登元 |
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| 作者单位： | 1. 新疆农业大学农学院,乌鲁木齐,830052
2. 中国科学院新疆生态与地理研究所,乌鲁木齐,830000 |
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| 基金项目： | 新疆维吾尔自治区高新技术项目;新疆生产建设兵团基金 |
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| 摘 要： | 探讨了气温和其变异程度与棉蚜发生量之间的关系。利用新疆北疆17年棉蚜虫情和气象数据,分析不同年份6~7月每5日气温变异系数(CV)值的差异与棉蚜发生程度关系,并采用CV值对棉蚜发生作多级判别模型,该模型回检符合率达82.4%。结果表明:(1)棉蚜发生量主要影响因子是7月中下旬的高温和6月下旬的低温;(2)气温变异程度大,棉蚜爆发成灾的可能性大;(3)6~8月月气温峰度>3以及偏斜度<-1是标志棉蚜大发生的重要指标之一。
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| 关 键 词： | 棉蚜 气温 变异系数 偏斜度 峰度 北疆 |
| 文章编号： | 1001-4330（2007）04-0423-06 |
| 收稿时间： | 2006-12-11 |
| 修稿时间： | 2006年12月11 |
Preliminary Discussion on Relationship between Air Temperature and Occurrence of Cotton Aphis gossypii Clover in the North of Xinjiang |
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| LUO Liang,MA De-ying,MIAO Wei,Lü Zhao-zhi,WANG Deng-yuan.Preliminary Discussion on Relationship between Air Temperature and Occurrence of Cotton Aphis gossypii Clover in the North of Xinjiang[J].Xinjiang Agricultural Sciences,2007,44(4):423-428. |
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| Authors: | LUO Liang MA De-ying MIAO Wei Lü Zhao-zhi WANG Deng-yuan |
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| Institution: | 1. College of Agronomy, Xinfiang Agricultural University, Urumqi 830052, China ; 2. Xinfiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830000, China |
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| Abstract: | The discussion was firstly carried out on the relationship between the air temperature and occurrence of Aphis gossypii Glover.Aphis gossypii Glover in the north of Xinjiang harms cotton crops more seriously than that in the south of Xinjiang.Its occurrence and damage happen every three-four years in the north of Xinjiang.The relationship between difference of the variation coefficient value of air temperature and occurrence extent of Aphis gossypii Glover in different years was analyzed by using the data of occurrance of Aphis gossypit Glover during 17 years in the north of Xinjaing.The CV value was used to analyse the differentiation model,the investigation results of which basically meet the demands.The results showed:(1)The main factor of occurrence of Aphis gossypii Glover was the high air temperature in the middle ten days of July and low air temperature in the last ten-day period of June;(2)The more grealty the air temperature changes,the more possiblly Aphis gossypii Glover caused pest disaster;(3)In high air temperature from June to August,it was easily for Aphis gossypii Glover to cause great pest disaster. |
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| Keywords: | Aphis gossypii Glover air temperature variation coefficient slant degree kurtosis the north of Xinjiang |
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