| 不同覆盖对棉田棉蚜和棉叶螨及其天敌种群动态的影响 |
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| 引用本文： | 贺欢,田长彦,王林霞.不同覆盖对棉田棉蚜和棉叶螨及其天敌种群动态的影响[J].中国沙漠,2011,31(1):180-184. |
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| 作者姓名： | 贺欢 田长彦 王林霞 |
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| 作者单位： | 1. 中国科学院,新疆生态与地理研究所,新疆,乌鲁木齐,830011;中国科学院,研究生院,北京,100049
2. 中国科学院,新疆生态与地理研究所,新疆,乌鲁木齐,830011 |
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| 基金项目： | 中国科学院知识创新工程项目(KZCX2-XB2-03-2),中国科学院农业项目(KSCX2-YW-N-41); 国家科技支撑项目(2008BADA5B05-2)资助 |
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| 摘 要： | 通过田间调查,比较露地、窄膜、宽膜、全膜和秸秆覆盖下主要棉田害虫和天敌种群动态。结果表明,不同覆盖方式对棉蚜种群动态影响很大,除窄膜和宽膜覆盖之间差异不显著外,其他覆盖差异均达到极显著,7月16日全膜和秸秆覆盖达峰值,比露地、窄膜和宽膜覆盖早5 d;高峰时全膜覆盖棉蚜数量分别是露地、窄膜、宽膜和秸秆覆盖的2.56、1.78、2.16倍和5.93倍。对棉叶螨种群动态影响不同于棉蚜,整个调查期,窄膜、宽膜和全膜之间无论从数量还是增长速率来看都呈相似趋势,而秸秆覆盖棉田棉叶螨数量显著高于其他覆盖,高峰时分别高出露地、窄膜、宽膜和全膜覆盖9 584.4、7 816.4、7 540.4头/百株和8 436.8头/百株。不同覆盖下主要天敌种类基本一致,但种群变化并没有明显的规律。
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| 关 键 词： | 棉蚜 棉叶螨 天敌 种群动态 覆盖方式 |
| 收稿时间： | 2010-6-12 |
| 修稿时间： | 2010-7-15 |
Population Dynamics of Cotton Aphids,Cotton Spider Mites and Natural Enemies in the Fields with Different Coverings |
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| HE Huan,TIAN Chang-yan,WANG Lin-xia.Population Dynamics of Cotton Aphids,Cotton Spider Mites and Natural Enemies in the Fields with Different Coverings[J].Journal of Desert Research,2011,31(1):180-184. |
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| Authors: | HE Huan TIAN Chang-yan WANG Lin-xia |
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| Institution: | HE Huan1,2,TIAN Chang-yan1,WANG Lin-xia1(1.Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China,2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | Population dynamics of cotton pests and their natural enemies were investigated in fields with different coverings.Field coverings had great influence on the population dynamics.The difference of population dynamics of cotton aphids reached a very significant level between different coverings except for between narrow film and wide film coverings.The number of cotton aphids under complete film covering and straw mulching reached a peak value on July 16,which was five days earlier than that of under no cover... |
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| Keywords: | cotton aphids cotton spider mites natural enemies population dynamics field covering |
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