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Effects of Thinning Intensity on the Soil Physical and Chemical Properties,Growth and Yields of Armeniaca vulgaris×A.sibirica
Authors
李明霞
杜社妮
白岗栓
耿桂俊
Publication date
1 January 2009
Publisher
Abstract
为了探讨密闭仁用杏园衰败的原因,采用常规的方法研究了间伐对仁用杏园土壤养分、水分及树体生长等方面的影响。结果表明:间伐减小了土壤容重,略微增加了土壤孔隙度;间伐显著提高了0-40 cm土层土壤有机质、0-20 cm土层土壤全氮,略微提高了0-20 cm土层土壤全磷;间伐显著提高了0-80 cm土层土壤速效氮、0-40 cm土层土壤速效磷和0-60 cm土层土壤速效钾,且间伐强度越大土壤养分越高;间伐显著提高了0-500cm土层土壤水分,在干旱的春季、夏季优为显著,且间伐强度越大,土壤水分越高;间伐显著促进了仁用杏生长,提高了坐果率和杏仁产量。白于山山区仁用杏间伐后密度应为167~222株/hm2
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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