植物根系的特征是农学家、植物生态学家和草原学家长期以来所关心的问题。一般调查根系的方法既费劳力又不精确。根系的资料很少,可以说明估测根量可能是不太重要或者很难测定。本文提出了一个迅速获得根系资料的简便方法,用根系计数估算根重。 Plant roots are characterized by the long-standing concerns of agronomists, plant ecologists and prairie scientists. The general method of investigating roots is laborious and imprecise. There is very little information on the root system, suggesting that estimating the root mass may be less important or difficult to determine. This article presents a quick and easy way to get root data, using root counts to estimate root weight.