【摘要】 本文选取宁夏南部山区百里香群落,利用了根钻法对百里香群落在0～60cm土壤范围内的根系构型参数进行了研究,试验结果表明:百里香群落的根系生物量集中在地下0～20cm土层深度,在0～10cm土壤范围内根系生物量更加集中,占总根系生物量的74%。群落根系生物量与土壤深度的关系符合幂函数分布。群落的根系参数中根长密度,表面积,根系生物量与土壤深度之间相关性达到极显著水平(P<0.05),比根长与土壤深度的相关性不显著。更多还原

【Abstract】 This In this paper, the Thymus mongolicus Ronn community in the southern mountainous area of Ningxia was selected. The root structure parameters of the Thymus mongolicus Ronn community were studied by root-drilling method. The results showed that the root biomass of the Thymus mongolicus Ronn community was concentrated in the depth of 0-20 cm soil layer, in the soil of 0-10 cm. Root biomass is more concentrated in the range, accounting for 74% of total root biomass. The relationship between community root biomass and soil depth is consistent with the power function distribution. The correlation between root length density, surface area, root biomass and soil depth in the root parameters of the community reached a very significant level(P<0.05), and the correlation between root length and soil depth was not significant.更多还原