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hibernating cocoon
相关语句
  越冬茧
     Spatial Distribution and Sampling Technique of Cnidocampa flavescens (Walker) Hibernating Cocoon
     黄刺蛾越冬茧空间分布型及抽样技术的研究
短句来源
     Study on spatial distribution and sampling technique of hibernating cocoon of Parasa consocia
     褐边绿刺蛾越冬茧的空间格局与抽样技术研究
短句来源
     Based on analysis on index of gathering, Cnidocampa flavescens (Walker) hibernating cocoon is defined to be in negative binominal distribution.
     通过聚集度指标的计算分析 ,明确了黄刺蛾 [Cnidocampa f lavescens(Walker) ]越冬茧呈聚集型的一般负二项分布。
短句来源
     The theoretical sampling quantity is when t=1.0 and D=0.3, n=13.46/+5.34. If the index of prevention and combat is determined as 1.5 hibernating cocoon for each tree, the limits of quantity of accumulated hibernating cocoon for sequential sampling is Tn=1.5n±3.3367n. The gathering is caused by environment factor.
     如果防治指标定为每株 1 .5个越冬茧时 ,序贯抽样的累积越冬茧数量界限为 :Tn =1 .5 n± 3 .3 3 67n ,聚集原因由于环境因素引起。
短句来源
     This paper studied the spatial distribution pattern of hibernating cocoon of Parasa consocia on different plants in Shanghai by Iwao method,Taylor method models as well as some indices of aggregation(C,M~*,M~*/x,I,K,C_A,I_δ).
     采用扩散型指标法和Iwao、Taylor回归法测定了上海地区褐边绿刺蛾Parasa consocia越冬茧的空间分布型。
短句来源
  相似匹配句对
     Hibernating Myocardium
     冬眠心肌研究进展
短句来源
     Spatial Distribution and Sampling Technique of Cnidocampa flavescens (Walker) Hibernating Cocoon
     黄刺蛾越冬茧空间分布型及抽样技术的研究
短句来源
     Study on spatial distribution and sampling technique of hibernating cocoon of Parasa consocia
     褐边绿刺蛾越冬茧的空间格局与抽样技术研究
短句来源
     Platform Based on Cocoon
     Cocoon在电信运营管理平台中的应用研究
短句来源
     Hangzhou's Charming of COCOON
     简洁 优雅 高贵 杭州女装万里行COCOON品牌尽显“杭女”风采
短句来源
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Based on analysis on index of gathering, Cnidocampa flavescens (Walker) hibernating cocoon is defined to be in negative binominal distribution. Sampling technique is given by use of Iwao method. The theoretical sampling quantity is when t=1.0 and D=0.3, n=13.46/+5.34. If the index of prevention and combat is determined as 1.5 hibernating cocoon for each tree, the limits of quantity of accumulated hibernating cocoon for sequential sampling is Tn=1.5n±3.3367n. The gathering is caused by environment...

Based on analysis on index of gathering, Cnidocampa flavescens (Walker) hibernating cocoon is defined to be in negative binominal distribution. Sampling technique is given by use of Iwao method. The theoretical sampling quantity is when t=1.0 and D=0.3, n=13.46/+5.34. If the index of prevention and combat is determined as 1.5 hibernating cocoon for each tree, the limits of quantity of accumulated hibernating cocoon for sequential sampling is Tn=1.5n±3.3367n. The gathering is caused by environment factor. The sequential sampling technique and determination of sampling quantity are statistic indexes which are able to reference in prevention and combat.

通过聚集度指标的计算分析 ,明确了黄刺蛾 [Cnidocampa f lavescens(Walker) ]越冬茧呈聚集型的一般负二项分布。用 Iwao方法给出了抽样技术 ,理论抽样数量当 t=1 .0  D =0 .3时 ,n =1 3 .46/x+5 .3 4。如果防治指标定为每株 1 .5个越冬茧时 ,序贯抽样的累积越冬茧数量界限为 :Tn =1 .5 n± 3 .3 3 67n ,聚集原因由于环境因素引起。应用序贯抽样技术和确定抽样数量是防治中值得参考的统计指标

This paper studied the spatial distribution pattern of hibernating cocoon of Parasa consocia on different plants in Shanghai by Iwao method,Taylor method models as well as some indices of aggregation(C,M~*,M~*/x,I,K,C_A,I_δ).All indices indicated that its distribution was a negative binominal distribution of an aggregated pattern in all densities.Aggregation intensity of of Parasa consocia increased with increasing densities.The theoretical sampling number and Kuno's sequential sampling method were ascertained...

This paper studied the spatial distribution pattern of hibernating cocoon of Parasa consocia on different plants in Shanghai by Iwao method,Taylor method models as well as some indices of aggregation(C,M~*,M~*/x,I,K,C_A,I_δ).All indices indicated that its distribution was a negative binominal distribution of an aggregated pattern in all densities.Aggregation intensity of of Parasa consocia increased with increasing densities.The theoretical sampling number and Kuno's sequential sampling method were ascertained by the parameter of spatial distribution pattern.

采用扩散型指标法和Iwao、Taylor回归法测定了上海地区褐边绿刺蛾Parasa consocia越冬茧的空间分布型。结果表明,褐边绿刺蛾茧在一切密度下空间分布型均为聚集型的负二项分布,且聚集强度随密度增加而增强,个体间相互吸引,分布的基本成分为个体群。根据空间分布型的参数,确定了理论抽样数和Kuno序贯抽样方法,提高了调查抽样的效率。

 
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