福建北部引种邓恩桉对土壤综合肥力的影响

为研究在福建北部高纬度区引种邓恩桉对土壤综合肥力的影响，以闽北建阳市引种的邓恩桉为研究对象，比较了由土壤养分各指标进行综合分析所得的土壤综合肥力值，结果表明：邓恩桉人工林土壤综合肥力指标值为0.669，土壤肥力等级为第Ⅱ级，土壤肥力状况良好；杉木人工林和马尾松人工林土壤综合肥力值分别为0.511和0.406，土壤肥力等级均处于第Ⅲ级，土壤肥力状况一般。此外，邓恩桉人工林相对于造林前其土壤综合肥力值显著上升。

Evaluation Research of Introduction Eucalyptus dunnii in Northern Fujian on Soil Comprehensive Fertility

To research the soil comprehensive fertility effect of introduction Eucalyptus dunnii which distributed in northern high latitude areas of Fujian on standing forest, introduction Eucalyptus dunnii in Fujian, Jianyang was taken as the research object, then this comprehensive fertility value could be obtained by comprehensively analyzing each indicator of soil fertility. The result showed: Soil comprehensive fertility indicator of Eucalyptus dunnii plantation was 0.669 with subsection II level of soil fertility grade, so the soil fertility status was good. Then soil comprehensive fertility indicator of Cunninghamia lanceolata plantation and Pinus massoniana plantation which had a subsection III level of soil fertility grade were 0.511 and 0.406. Thus their soil fertility statuses were general. In addition, compared with afforestation before, soil comprehensive fertility value of Eucalyptus dunnii plantation had increased significantly.