皆伐对不同坡度及结构的林分土壤理化性状的影响[J]. 中国生态农业学报(中英文), 2008, 16(3): 693-700. DOI: 10.3724/SP.J.1011.2008.00693
引用本文: 皆伐对不同坡度及结构的林分土壤理化性状的影响[J]. 中国生态农业学报(中英文), 2008, 16(3): 693-700. DOI: 10.3724/SP.J.1011.2008.00693
Effect of clear-cutting on soil physical and chemical properties in artificial forest lands on different slopes and forest stands[J]. Chinese Journal of Eco-Agriculture, 2008, 16(3): 693-700. DOI: 10.3724/SP.J.1011.2008.00693
Citation: Effect of clear-cutting on soil physical and chemical properties in artificial forest lands on different slopes and forest stands[J]. Chinese Journal of Eco-Agriculture, 2008, 16(3): 693-700. DOI: 10.3724/SP.J.1011.2008.00693

皆伐对不同坡度及结构的林分土壤理化性状的影响

Effect of clear-cutting on soil physical and chemical properties in artificial forest lands on different slopes and forest stands

  • 摘要: 选择人工林伐区3种不同坡度和4种不同结构林分的林地作为试验地,研究分析各种林地皆伐作业前后土壤理化性状的变化情况.结果表明:皆伐后除土壤容重和结构体破坏率2项指标增大外,其余土壤理化性质指标均下降.土壤持水性能变差,孔隙度减小,养分含量降低,且土壤理化性质的变化幅度与林地坡度大小及林分结构有关.主成分分析结果表明:皆伐对不同坡度林地土壤理化性质的干扰程度,由大到小依次为30°的林地、23°的林地和16°的林地;皆伐对不同结构林分林地土壤理化性状的干扰影响,由大到小依次为短轮伐期阔叶林(尾叶桉纯林)林地、杉阔混交林林地、马杉混交林林地和杉木纯林林地.从有利于环境保护,减少采伐作业对不同坡度和不同结构林分林地土壤理化性状影响的角度,提出了相应的技术措施.

     

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