论文部分内容阅读
异色瓢虫幼虫在烟田的空间分布型为聚集分布 ,并符合负二项分布。聚集原因由环境差异引起。通过 Taylor指数回归式参数确定了在一定精确度水平下的理论抽样数。
The heterophoric ladybug larvae in the tobacco field spatial distribution type for the aggregation distribution, and in line with the negative binomial distribution. Aggregation causes environmental differences. The number of theoretical samples at a certain level of accuracy was determined by Taylor’s exponential regression.