【摘要】 通过对枫树山林场四个分场不同林分类型下森林土壤肥力的研究，结果表明：（1）枫树山林场森林土壤表层pH值偏低，除毛竹pH值较高外，其余林下土壤pH一般都在3．7以下。这主要是由于枯落物分解产生的腐殖酸所致，市区工业污染也是原因之一。（2）大部分土壤供P水平极低，供N水平中等，供K水平稍高，土壤一般不缺K。（3）不同林分类型下的土壤肥力存在较大差异：在同龄杉木林、马尾松林和天然阔叶林中，以天然阔叶林林下土壤肥力最高；同时20年生杉木林和马尾松林林下土壤肥力高于30年生杉木林和马尾松林，其它林分则未表现出规律性。（4）在所研究的4个分场中，土壤肥力存在比较显著的差异，浮东分场土壤肥力最高，其次是宁村分场，塘坞分场和磨刀港分场土壤肥力较低。更多还原

【Abstract】 Soil nutrition status of different types of stands in four branches of Fengshushan forest farm was studied and the following results were gained: (1)Soil pH values were very low in most of the stands, which might be due to the industrial pollution of the municipality. (2) Available P contents were low in most of stands, total N was at middle level and available K was rich. (3)Of the Chinese fir, pine and broad-leaf stands of the same age, soils under broad-leaf stand had the highest fertility. Soils under 20-year-old Chinese fir and pine stands had higher fertility than those under 30-years-old Chinese fir and pine stands, respectively. (4) Differences in soil fertility among the four branch farms were found: Foudong had the most fertile soils, Ningcun had the second and Tangwu and Modaogang had the least.更多还原