南亚热带杉木人工成熟林密度对土壤养分效应研究
S714%S791.27; [目的]研究5种不同密度林分土壤剖面养分含量的变化规律.[方法]以广西大青山37年生杉木密度试验林为研究对象,测定了A(1667株·hm-2)、B(3333株·hm-2)、C(5000株·hm-2)、D(6667株·hm-2)、E(10000株·hm-2)5种密度下0100 cm土层土壤养分含量.利用单因素方差分析和多重比较判断不同密度和不同土层土壤养分含量的差异.[结果]表明:(1)杉木人工成熟林大多数土层土壤有机质、全氮、碱解氮、全磷、有效性铁含量在A、B等低密度林分中最高,并且在030 cm的土壤中,随密度的增加表现出总体下降的变化趋势,而土壤pH值与全钾、速...
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| Published in | 林业科学研究 Vol. 31; no. 3; pp. 15 - 23 |
|---|---|
| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
南京林业大学南方现代林业协同创新中心,江苏南京 210037%中国林业科学研究院热带林业实验中心,广西凭祥,532600%山东潍坊市林业局,山东潍坊,261061
01.06.2018
中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,林木遗传育种国家重点实验室,北京 100091%中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,林木遗传育种国家重点实验室,北京 100091 |
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| Online Access | Get full text |
| ISSN | 1001-1498 |
| DOI | 10.13275/j.cnki.lykxyj.2018.03.003 |
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| Abstract | S714%S791.27; [目的]研究5种不同密度林分土壤剖面养分含量的变化规律.[方法]以广西大青山37年生杉木密度试验林为研究对象,测定了A(1667株·hm-2)、B(3333株·hm-2)、C(5000株·hm-2)、D(6667株·hm-2)、E(10000株·hm-2)5种密度下0100 cm土层土壤养分含量.利用单因素方差分析和多重比较判断不同密度和不同土层土壤养分含量的差异.[结果]表明:(1)杉木人工成熟林大多数土层土壤有机质、全氮、碱解氮、全磷、有效性铁含量在A、B等低密度林分中最高,并且在030 cm的土壤中,随密度的增加表现出总体下降的变化趋势,而土壤pH值与全钾、速效钾随密度的增加而上升,交换性钙与交换性镁含量受密度影响不明显;(2)土壤有机质、全氮、碱解氮、有效磷、速效钾、交换性钙、交换性镁和有效性铁含量均随土层深度的增加而明显下降,030 cm表层土壤的降幅较大,密度对不同土壤深度养分含量的变化具有一定影响.[结论]初植密度对杉木人工成熟林土壤养分含量影响明显,低初植密度更有利于杉木人工林土壤肥力的长期维持,南亚热带杉木林密度对土壤养分的影响深度可达60 cm. |
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| AbstractList | S714%S791.27; [目的]研究5种不同密度林分土壤剖面养分含量的变化规律.[方法]以广西大青山37年生杉木密度试验林为研究对象,测定了A(1667株·hm-2)、B(3333株·hm-2)、C(5000株·hm-2)、D(6667株·hm-2)、E(10000株·hm-2)5种密度下0100 cm土层土壤养分含量.利用单因素方差分析和多重比较判断不同密度和不同土层土壤养分含量的差异.[结果]表明:(1)杉木人工成熟林大多数土层土壤有机质、全氮、碱解氮、全磷、有效性铁含量在A、B等低密度林分中最高,并且在030 cm的土壤中,随密度的增加表现出总体下降的变化趋势,而土壤pH值与全钾、速效钾随密度的增加而上升,交换性钙与交换性镁含量受密度影响不明显;(2)土壤有机质、全氮、碱解氮、有效磷、速效钾、交换性钙、交换性镁和有效性铁含量均随土层深度的增加而明显下降,030 cm表层土壤的降幅较大,密度对不同土壤深度养分含量的变化具有一定影响.[结论]初植密度对杉木人工成熟林土壤养分含量影响明显,低初植密度更有利于杉木人工林土壤肥力的长期维持,南亚热带杉木林密度对土壤养分的影响深度可达60 cm. |
| Abstract_FL | [Objective]To study the effect of five initial planting densities and different soil profile on soil nutrient contents of Chinese fir (Cunninghamia lanceolata)mature plantation.[Method]The soil nutrient contents (0-100 cm soil layers)of C.lanceolata mature plantation in Daqingshan Forest Farm under five different planting den-sities of A (1667 trees·hm-2 ),B (3333 trees·hm-2 ),C (5000 trees·hm-2 ),D (6667 trees·hm-2 ), and E (10000 trees·hm-2 )were measured.One-way ANOVA and the least significant difference were applied to determine the soil nutrient contents in different densities and different soil layers.[Result]The results showed that:(1 )The contents of organic matter,total N,P,available N and available Fe were the highest in most soil lay-ers of stands with density A or B.In general,as initial planting density increased,the contents of organic matter, total N,P,available N and available Fe in upper soil layers (0-30 cm)decreased.While soil pH,total K and a-vailable K increased with initial planting density.Moreover,the initial planting density did not significantly influ-ence the contents of exchangeable Ca and Mg;(2)Soil organic matter,total N,available N,P,K,exchangeable Ca,Mg and Fe contents obviously decreased with increasing soil depths.This pattern was particularly evident in the top 0-30 cm.The initial planting density had obvious effect on nutrient content in different soil depths.[Conclu-sion]The nutrients in 60 cm soil are affected by stand density in South Asia,while the low initial planting density is more conducive to the long term conservation of soil fertility in Chinese fir plantation. |
| Author | 段爱国 张建国 郭光智 张雄清 胡小燕 郭文福 杜海伦 |
| AuthorAffiliation | 中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,林木遗传育种国家重点实验室,北京 100091%中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,林木遗传育种国家重点实验室,北京 100091;南京林业大学南方现代林业协同创新中心,江苏南京 210037%中国林业科学研究院热带林业实验中心,广西凭祥,532600%山东潍坊市林业局,山东潍坊,261061 |
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| Author_FL | GUO Guang-zhi DUAN Ai-guo ZHANG Jian-guo GUO Wen-fu HU Xiao-yan ZHANG Xiong-qing DU Hai-lun |
| Author_FL_xml | – sequence: 1 fullname: HU Xiao-yan – sequence: 2 fullname: DUAN Ai-guo – sequence: 3 fullname: ZHANG Jian-guo – sequence: 4 fullname: DU Hai-lun – sequence: 5 fullname: ZHANG Xiong-qing – sequence: 6 fullname: GUO Wen-fu – sequence: 7 fullname: GUO Guang-zhi |
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| DocumentTitle_FL | Effect of Stand Density on Soil Nutrient of Chinese Fir Mature Plantations in South Asia Subtropical Zone |
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| Keywords | Cunninghamia lanceolata soil profile planting density nutrient content 杉木 土壤剖面 mature stand 成熟林 养分含量 初植密度 |
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| Publisher | 南京林业大学南方现代林业协同创新中心,江苏南京 210037%中国林业科学研究院热带林业实验中心,广西凭祥,532600%山东潍坊市林业局,山东潍坊,261061 中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,林木遗传育种国家重点实验室,北京 100091%中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,林木遗传育种国家重点实验室,北京 100091 |
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| Title | 南亚热带杉木人工成熟林密度对土壤养分效应研究 |
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