On the basis of quantification of damage and hygrophilous extend, the indicator plants was studied by multiple regression.

结果表明，油松林分郁闭度是影响松毛虫害发生的主要因子，林内灌草植物喜湿度对虫害具有指示意义。

youdao

On the basis of quantification of damage and hygrophilous extend, the indicator plants was studied by multiple regression.

结果表明，油松林分郁闭度是影响松毛虫害发生的主要因子，林内灌草植物喜湿度对虫害具有指示意义。

youdao