松材线虫入侵后马尾松根际土壤性质相关分析

Relevant Analysis of Soil Characters in Forest Land Invaded by Bursaphelenchus xylophilus

通过松材线虫入侵林地内马尾松根际(rhizophere)土壤物理性质、化学性质及林地地形因子调查,利用典型性相关分析法分析土壤性质各因子和地形因子之间的相关性。发现速效K含量与海拔,速效磷含量与坡向、破位以及有机质与坡度之间呈现强相关性;土壤质地与海拔,枯落物厚度与坡向,含水量与坡度等之间表现出强相关性。另外通过对松材线虫入侵林地内松树根际和非根际土壤含水量显著性检验,发现根际和非根际之间土壤含水量无显著性差异。

The physical and chemical characteristics of the rhizosphere soil under the Masson pine and the topography factors, where the forest land has been invaded by Bursaphelenchus xylophilus ,were investigated and analysed through Model Relevant Analysis. It is found that the content of available K,the content of available P,organic have close relationship with altitude,aspect and vertical location,slope separately. While the soil texture,the forest litters and the soil water content have strong relativity with altitude, aspect and slope separately. In addition, no significance difference in soil water content was found between the rhizophere and non-rhizophere soil of Masson pine.