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对长白山林区4种不同森林类型下的土壤肥力进行了研究.结果表明:①连栽落叶松林地有25cm厚的枯枝落叶层,且有15cm厚的部分完全分解,A层的有机质和多酚氧化酶含量最高,B层各项肥力指标均较低;②云冷杉林的枯枝落叶层的厚度和分解状况优于落叶松纯林,且有机质、全氮、速效磷含量高;③天然云冷杉林的微生物总量大于次生云冷杉林;④多酚氧化酶与有机质和全N的相关系数分别为0.9680和0.9737.
The soil fertility under four different forest types in Changbai Mountain was studied.The results showed that: ① The 25-cm-thick litter layer was planted in the continuous-planted Larix gmelinii forest with 15cm-thick partially decomposed, and the organic matter and The content of phenoloxidase and the index of fertility in B layer were lower; ② The thickness and decomposition status of litter layer in spruce-fir forest was better than the pure forest of larch with high content of organic matter, total nitrogen and available phosphorus; ③The natural The total amount of microorganisms in spruce-fir forest was larger than that in secondary spruce fir forest. The correlation coefficient between polyphenol oxidase and organic matter and total N were 0.9680 and 0.9737, respectively.