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CHANGES OF SOIL FERTILITY IN THE EVERGREEN BROAD-LEAVED AND CHINESE FIR FOREST LANDS IN SUB-TROPICAL AFTER CLEAR CUTTINGS

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF APPLIED & ENVIRONMENTAL BIOLOGY
Issue:
2
DOI:
10.3321/j.issn:1006-687X.2002.02.002
Key Word:
皆伐;林地;土壤肥力

Abstract: 研究了皆伐对亚热带常绿阔叶林和杉木林林地土壤(δ 0~20 cm)肥力的影响. 结果表明: 皆伐后林地土壤微生物数量增加, 土壤酶活性增强, 增强的幅度以水解酶活性为大,但随着时间的推移,微生物数量和酶活性均下降; 土壤有机质、全氮、全磷含量下降, 速效养分虽有较大幅度的增加, 但随着时间的推移也呈下降趋势; 土壤交换性能得到了一定程度的改善, 土壤物理性质变差. 表5 参10

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