| 棉蚜及龟纹瓢虫空间格局的地学统计学研究 |
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| 引用本文： | 毕守东,邹运鼎,耿继光,王公明,陈高潮,孟庆雷.棉蚜及龟纹瓢虫空间格局的地学统计学研究[J].应用生态学报,2000,11(3):421-424. |
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| 作者姓名： | 毕守东 邹运鼎 耿继光 王公明 陈高潮 孟庆雷 |
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| 作者单位： | 安徽农业大学,合肥,230036 |
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| 基金项目： | 安徽省自然科学基金!(95 农 0 5)，安徽省教委基金!(95JL0 0 32 )资助项目 |
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| 摘 要： | 应用地学统计学的原理和方法研究了不同时期棉蚜及龟纹瓢虫种群的空间结构和空间生。结果表明，不同时期棉蚜种群的关变异函数曲线皆为球型，其空间格局为聚集型，变程在８．２１￣１０．８１ｍ之间；龟纹瓢虫种群的拟合半变异函数曲线也表现为球型，呈聚集空间格局，空间变程在８．０１￣１４．２５ｍ之间，并与棉蚜种群在数量和空间上有较强的追随关系，说明龟纹瓢虫种群是棉蚜种群的优势种天敌。
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| 关 键 词： | 棉蚜 龟纹瓢虫 空间格局 地学统计学 优质种天敌 |
Geostatistical analysis on spatial patterns of Aphis gossypii and Propylaca japonica |
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| BI Shoudong,ZOU Yunding,GENG Jiguang,WANG Gongming,CHEN Gaochao,MENG Qinglei.Geostatistical analysis on spatial patterns of Aphis gossypii and Propylaca japonica[J].Chinese Journal of Applied Ecology,2000,11(3):421-424. |
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| Authors: | BI Shoudong ZOU Yunding GENG Jiguang WANG Gongming CHEN Gaochao MENG Qinglei |
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| Institution: | Anhui Agricultural University, Hefei 230036. |
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| Abstract: | The spatial construction and distribution of Aphis gossypii and Propylaca japonica at different period were investigated with geostatistics. The results showed that the semivariogram of Aphis gossypii was described by spherical model, indicating an aggregated spatial arrangement, the range was 8.21-10.81 m. The semivariograms of Propylaca japonica was fitted by spherical model too, also indicating an aggregated spatial arrangement, its range was 8.01-14.25 m. The amount and spatial distribution of Propylaca japonica was closely related to that of Aphis gossypii. It reveals that Propylaca japonica is dominant natural enemies of influencing population of Ahphis gossypii. |
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| Keywords: | Aphis gossypii Propylaca japoinica Spatial distribution Geostatistics |
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