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| 青杨脊虎天牛幼虫空间分布格局 | |
| 引用本文： | 胡春祥,黄咏槐,李成军,孙江华.青杨脊虎天牛幼虫空间分布格局[J].昆虫知识,2004,41(3):241-244. |
| 作者姓名： | 胡春祥 黄咏槐 李成军 孙江华 |
| 作者单位： | 1. 东北林业大学,哈尔滨,150040 2. 大庆市红旗林场,大庆,16381 3. 中国科学院动物研究所,农业虫鼠害综合治理研究国家重点实验室,北京,100080 |
| 摘 要： | 20 0 3年 4～ 6月 ,在黑龙江省大庆市红旗林场对青杨脊虎天牛XylotechusrusticusL .幼虫空间分布格局进行了调查研究 ,结果表明该天牛幼虫在杨树人工林内呈负二项分布 ;采用 6种不同聚集指标测定结果均表明为聚集分布。对青杨脊虎天牛幼虫在树干高度上垂直分布研究表明 ,该天牛幼虫在树干上危害部位主要集中在 1～ 4m范围内 ;对该幼虫垂直分布与树干高度进行曲线拟合 ,符合立方曲线 ,曲线方程为y =0 0 68+0 41 7x -0 1 3 6x2 +0 0 1 1x3 ,由相关系数方值R2 =0 83 6验证 |
| 关 键 词： | 青杨脊虎天牛 空间分布型 垂直分布 |
Larval spatial distribution pattern of Xylotechus rusticus |
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| HU Chun-Xiang,HUANG Yong-Huai,LI Cheng-Jun,SUN Jiang-Hua{}.Larval spatial distribution pattern of Xylotechus rusticus[J].Entomological Knowledge,2004,41(3):241-244. | |
| Authors: | HU Chun-Xiang HUANG Yong-Huai LI Cheng-Jun SUN Jiang-Hua{} |
| Institution: | HU Chun-Xiang+1,HUANG Yong-Huai+1,LI Cheng-Jun+2,SUN Jiang-Hua+{3*} |
| Abstract: | The larval spatial distribution pattern of Xylotechus rusticus L. was studied in Daiqing, Heilongjiang Province during summer in 2003. The results showed that the larvae in poplar plantation are in negative binomial distribution, and six indices of aggregation revealed that it's of aggregation pattern. Survey of the larvae's vertical distribution demonstrated that the insect attack was concentrated on polar trunk in range from 1 to 4 meters in the height. An equation describing the attack and poplar trunk height position was derived as y =0 068+0 417 x -0 136 x 2+0 011 x 3 with R 2 =0 836. |
| Keywords: | Xylotechus rusticus L spatial distribution vertical distribution |
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