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OALib Journal期刊
ISSN: 2333-9721
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华南3种人工林土壤有机质和养分含量及其综合评价
DOI: 10.3969/j.issn.1000-2006.2014.02.016, PP. 81-85
Keywords: 土壤有机质,土壤养分,综合评价系数,桉树,马尾松,杉木
Abstract:
基于广东省第6次森林资源清查土壤调查数据,对华南地区3种重要的用材林(桉树(eucalyptusspp.)、马尾松(pinusmassoniana)和杉木(cunninghamialanceolata))林分土壤有机质和养分含量进行了综合评价。结果表明:桉树人工林a层土壤有机质、速效磷含量显著高于杉木人工林和马尾松人工林,a、b层土壤全钾、速效钾含量显著低于杉木人工林和马尾松人工林(p<0.05);3种林分土壤(a、b层)全氮、碱解氮、全磷、有效铜和有效锌含量均无显著差异(p>0.05);各林分a层土壤有机质、全氮、碱解氮、速效磷、速效钾、有效锌含量显著高于b层,a层全磷、全钾和有效铜含量与b层无显著差异。土壤综合评价系数在a层以桉树人工林最高、杉木人工林较小,b层则为杉木人工林最高、桉树人工林较小,马尾松人工林在a、b层均居中。
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