为了解千岛湖地区天然次生林地枯落物积累及土壤基本状况， １９９８ 年春采用标准地方法对千岛湖３ 个林场进行了初步调查和采样分析。结果表明： 林地枯落物营养元素含量和总贮量均呈氮＞ 钙＞ 钾＞ 镁＞ 锰＞ 磷＞ 锌的排序， 林地枯落物中这些营养元素的总量依次为６７０３ ｋｇ·ｈｍ － ２ ， ５２６４ ｋｇ·ｈ ｍ － ２ ， ２３２８ ｋｇ·ｈｍ － ２ ， １２１０ｋｇ·ｈｍ － ２ ， ３５７ ｋｇ·ｈ ｍ － ２ ， ３０１ ｋｇ·ｈ ｍ － ２ 和０１９ ｋｇ·ｈ ｍ － ２ 。３ 个林场土壤养分差异较大， 说明各林场间次生林立地类型和树种结构有很大不同。但从每个林场单独来看， 阔叶林地养分状况明显好于马尾松林地和混交林地。表４ 参６ In order to understand the litter accumulation and soil basic conditions of natural secondary forest in Qiandao Lake area, the preliminary investigation and sampling analysis were conducted on the three forest farms in Qiandao Lake in the spring of 1998 using the standard method. The results showed that the nutrient elements and the total reserves of forest litter were in the order of N> Ca> K> Mg> Mn> Mn> P> Zn. The total amounts of these nutrient elements in forest litter were 6703 kg · hm - 2, 5264 kg · hm - 2, 2328 kg · hm - 2, 1210 kg · hm - 2, 357 kg · hm - 2, 301 kg · hm - 2 And 019 kg · h m -2. The differences in soil nutrients among the three forest farms showed that there was a great difference in the type of secondary forest and tree species among the various forest farms. However, from the point of view of each forest farm alone, the nutrient status of broad-leaved forest is obviously better than that of Pinus massoniana forest and mixed forest. Table 4 reference 6