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黄地老虎种群动态与积雪的关系
Authors
丁红
吕昭智
+3 more
巩志中
张秋红
王珮玲
Publication date
1 January 2006
Publisher
Abstract
利用新疆北部地区黑光灯下黄地老虎越(Agrotis segetum)冬代种群数据(1992~2001年),分析了越冬代种群数量与冬季积雪最大厚度和天数的关系。结果表明,黄地老虎越冬代发蛾的时间为4月30日~6月15日,越冬代种群数量年际间存在很大波动性。黄地老虎越冬代种群数量与当年度覆雪天数(1月1日~4月初)呈显著负相关(R2=0.6022,P<0.0083),而与冬季最大积雪厚度(R2=0.23,P=0.1577)和秋冬季(11月~翌年4月)积雪天数(R2=0.099,P<0.3748)相关不显著。当年度覆雪天数可以作为黄地老虎预测中的一项重要的参考指标
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Institutional Repository of Xinjiang Institute of Ecology and Geography, CAS
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Last time updated on 29/11/2016