| 速生阶段秃杉与杉木人工林营养元素积累及其分配特征 |
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| 引用本文： | 何斌,罗柳娟,梁机,邓荣艳,刁海林,陈玉萍,荣薏.速生阶段秃杉与杉木人工林营养元素积累及其分配特征[J].福建林学院学报,2010,30(1). |
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| 作者姓名： | 何斌 罗柳娟 梁机 邓荣艳 刁海林 陈玉萍 荣薏 |
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| 作者单位： | 广西大学林学院,广西,南宁,530004 |
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| 基金项目： | 广西“十五”林业科学研究资助项目(2001-27) |
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| 摘 要： | 对广西南丹山口林场相似立地条件下速生阶段(11年生)的秃杉与杉木(第2代)人工林5种营养元素(N、P、K、Ca和Mg)的含量、积累量、年净积累量和分配进行了研究。结果表明,秃杉与杉木不同器官中营养元素含量排序均为树叶>干皮>树枝>树根>干材,林木各器官营养元素含量均以N最高,其次是Ca和K,Mg和P最低。秃杉人工林分营养元素贮存量为573.40kg.hm-2,明显高于杉木人工林(330.33kg.hm-2),其中乔木层、林下植被层和凋落物层分别为517.97、11.05和47.05kg.hm-2,分别占林分营养元素积累量的89.91%、1.92%和8.17%。5种营养元素贮存量在秃杉与杉木人工林乔木层的分配均为树叶>树枝>干材>干皮或树根。秃杉人工林营养元素平均年净积累量为47.09kg.hm-.2a-1,是杉木人工林(26.55kg.hm-.2a-1)的1.77倍。秃杉的营养元素利用效率低于杉木,但明显高于马尾松、刺槐和马占相思。
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| 关 键 词： | 秃杉 杉木 人工林 速生阶段 营养元素 积累 分配 |
Nutrient accumulation and distribution in Taiwania flousiana and Cunninghamia lanceolata plantation |
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| HE Bin,LUO Liu-juan,LIANG Ji,DENG Rong-yan,DIAO Hai-lin,CHEN Yu-ping,RONG Yi.Nutrient accumulation and distribution in Taiwania flousiana and Cunninghamia lanceolata plantation[J].Journal of Fujian College of Forestry,2010,30(1). |
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| Authors: | HE Bin LUO Liu-juan LIANG Ji DENG Rong-yan DIAO Hai-lin CHEN Yu-ping RONG Yi |
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| Institution: | College of Forestry;Guangxi University;Nanning;Guangxi 530004;China |
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| Abstract: | The contents,accumulation,annual net accumulations and distribution of five nutrient elements (N,P,K,Ca and Mg) in Taiwania flousiana and Cunninghamia lanceolata (the second generation) plantation at fast growing stage (11-year-old) of same habitats were studied in Nandan Shankou Forestry Farm of Guangxi,China.The results showed that the nutrient content in various organs of T.flousiana and C.lanceolata was in the order of leaves>stem bark>branch>root>stem wood.The content of N was the highest among the fiv... |
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| Keywords: | Taiwania flousiana Cunninghamia lanceolata plantation fast growing stage nutrient element accumulation distribution |
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