| 草场蝗虫的种群密度与受害程度及经济阈值的探讨 |
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| 引用本文： | 李新华,赵智刚.草场蝗虫的种群密度与受害程度及经济阈值的探讨[J].干旱环境监测,1998,12(3):158-160. |
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| 作者姓名： | 李新华 赵智刚 |
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| 作者单位： | 新疆环境监测中心站!乌鲁木齐，830011，新疆环境监测中心站!乌鲁木齐，830011，新疆环境监测中心站!乌鲁木齐，830011 |
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| 摘 要： | 以野外实测为基础，应用统计学方法，探讨了天山北坡中段草场蝗虫虫口密度与草场产量的关系，并依此建立了半荒漠草场意大利蝗虫危害防治的经济阈值，即69头／m23令前意大利蝗虫。
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| 关 键 词： | 蝗虫 草场 经济阈值 |
On Population Dedsity,Harmful Level and Economical Threshold Value of Locust in Crassland |
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| Li Xinhua,Zhao Zhigang and Niu Yongqi.On Population Dedsity,Harmful Level and Economical Threshold Value of Locust in Crassland[J].Arid Environmental Monitoring,1998,12(3):158-160. |
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| Authors: | Li Xinhua Zhao Zhigang and Niu Yongqi |
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| Abstract: | On account of field mouitoring data,using statistics method,the relation between population density and output of grasslandin middle section of north slope of Tianshan Mountains was founded,and the econmical threshold value of Italy Locust-Pre-vention in semi-desert grassland was calculated,or 13(Italy Locust under three-old-years)/m3. |
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| Keywords: | Locust Grassland Economical threshold value |
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