通过 1 994～ 1 997年对江苏泰兴市的银杏生长土壤与自然土壤性质进行比较 .显示出银杏生长和施肥管理对土壤上部 ( 0～ 4 0cm) pH值下降 ,而中、下部 ( 40～ 1 0 0cm) pH值上升 ,全土层有机质数量增多 .土壤氮素、磷素和钾素总量及有效性均不同程度增加 ,特别是磷和钾的增加更为明显 ,反映出银杏生长(根系和落叶 )及施用农家肥 (特别是灰肥 )导致土壤肥力向良性化方向发展的趋势 . The soil and natural soil properties of Ginkgo biloba from Taixing, Jiangsu Province were compared from 1994 to 1997. The results showed that the growth and fertilization management of Ginkgo biloba decreased the pH of the upper part of soil (0 ~ 40 cm), while the middle and lower part (40 ~ 1 0 0cm) increased, and the amount of organic matter increased in all soil layers.The total amount and availability of soil N, P and K increased to some extent, especially the increase of P and K, which reflected the growth of Ginkgo biloba Deciduous) and the application of manure (especially gray manure) led to the development trend of soil fertility toward the benign.