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Effect of plantation litter decomposition on soil properties
Authors
于维峰
刘增文
+6 more
刘玉杰
孙强
孙红彦
张丽萍
张兴昌
王书斌
Publication date
1 January 2008
Publisher
Abstract
研究人工林凋落叶分解对土壤性质的影响,为防止土壤退化、增加土壤肥力提供理论指导。【方法】采集四川岷江流域上游的4种(连香树(Cercidiphyllum japonicum)、云南松(Pinus yunnanensis)、糙皮桦(Betula1 utilis)和云杉(Picea asperata))林木凋落叶及林地土壤样品,通过对当年凋落叶进行240 d室内分解培养试验,探讨不同凋落叶在分解过程中对土壤性质的影响。【结果】云杉和云南松凋落叶分解使土壤pH值降低,糙皮桦和连香树凋落叶分解使土壤pH值增加;4种凋落叶分解过程中,土壤有机质和全氮含量,土壤微生物量C、N以及4种土壤酶(蔗糖酶、过氧化氢酶、脲酶和蛋白酶)活性均有所增加。【结论】土壤有机质、全N、微生物量、酶活性增加的幅度与凋落叶分解速率及养分释放率有密切关系,凋落叶分解的越快,土壤状况改善的越明显
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018