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| 苜蓿草地地表蜘蛛混合种群动态的模糊聚类分析 | |
| 引用本文： | 周玉锋,杨茂发,文克俭,陈伟.苜蓿草地地表蜘蛛混合种群动态的模糊聚类分析[J].贵州农业科学,2009,37(8). |
| 作者姓名： | 周玉锋 杨茂发 文克俭 陈伟 |
| 作者单位： | 1. 贵州大学,昆虫研究所,贵州,贵阳,550025;贵州省草业研究所,贵州,独山,558200 2. 贵州大学,昆虫研究所,贵州,贵阳,550025 3. 贵州省草业研究所,贵州,独山,558200 |
| 基金项目： | 贵州省农业科学院专项项目"人工草地昆虫群落研究及重要害虫综合治理" |
| 摘 要： | 为苜蓿草地蜘蛛的保护利用提供依据,采用陷阱法对贵州南部苜蓿草地地表蜘蛛混合种群进行了系统调查,利用平均密度(M)、聚块性指标(M*/M)及有虫陷阱率(F)等参数作为指标对蜘蛛混合种群动态进行模糊聚类分析.结果表明:苜蓿草地蜘蛛混合种群划分为高密度高聚集期、低密度中等聚集期、高密度中等聚集扩散期、种群消退期等4种动态类型. |
| 关 键 词： | 苜蓿 人工草地 蜘蛛 混合种群 模糊聚类分析 |
Fuzzy Cluster Analysis on Dynamic of Mixed Spider Population in Alfalfa Grassland |
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| ZHOU Yu-feng,YANG Mao-fa,WEN Ke-jian,CHEN Wei.Fuzzy Cluster Analysis on Dynamic of Mixed Spider Population in Alfalfa Grassland[J].Guizhou Agricultural Sciences,2009,37(8). | |
| Authors: | ZHOU Yu-feng YANG Mao-fa WEN Ke-jian CHEN Wei |
| Institution: | ZHOU Yu-feng1,2,YANG Mao-fa1,WEN Ke-jian2,CHEN Wei2(1.Institute of Entomology,Guizhou University,Guiyang,Guizhou 550025,2.Guizhou Pratacultural Institute,Dushan,Guizhou 558200,China) |
| Abstract: | Systematic investigation on mixed spider population on surface of alfalfa grassland in Southern Guizhou was undertaken by pitfall trap method.The parameters of average density(M),index of mean crowding(M/M),the rate of pitfall trap were used as indicators to carry through the fuzzy cluster analysis on dynamics of mixed spider population.The results showed that the mixed spider population on alfalfa grassland was divided into four types which were period of high-gathering with high density,period of medium-g... |
| Keywords: | alfalfa artificial grassland spider mixed population fuzzy cluster analysis |
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