摘要
本文通过频次概率拟合法、扩散系数等分析了银纹夜蛾的空间分布型。结果表明，银纹夜蛾属核心分布类型；抽样方法以5点抽样方便宜行；田间调查抽样以200丛样本较适宜。
The paper deal, with distribution pattern of Plusur agnata, using spatial distribntion pattern. expansion patterntarget, The results indicate that distribution pattern of P. agnata is Neyman, five point sampling is the best method ofsanpling, its best number of sanpling is two hundred clump.
出处
《生物灾害科学》
1997年第2期1-4,共4页
Biological Disaster Science
关键词
银纹夜蛾
空间分布
抽样技术
Plusia agnata, distribntion pattern, sampling techniques
