欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 1993, Vol. 4 ›› Issue (1): 7-11.

• 研究论文 • 上一篇    下一篇

安徽马尾松人工林营养元素分配格局的研究

张旭东, 薛明华, 许军   

  1. 安徽农业大学, 合肥 230036
  • 收稿日期:1991-12-05 修回日期:1992-06-25 出版日期:1993-01-25 发布日期:1993-01-25

Distribution pattern of nutrient elements in masson pine plantation of Anhui province

Zhang Xudong, Xue Minghua, Xu Jun   

  1. Anhui Agricultural University, Hefei 230036
  • Received:1991-12-05 Revised:1992-06-25 Online:1993-01-25 Published:1993-01-25

摘要: 本文系统地研究了马尾松人工林营养元素的分配格局.结果表明马尾松不同器官营养元素含量是叶>枝皮>干皮>枝木>干木;同化器官——针叶中营养元素含量规律为N>K>Ca>Mg>P,非同化器官为Ca>N>K>Mg>P;不同器官营养元素的贮量为干木>干皮>叶>枝木>枝皮,同化器官对不同营养元素的贮量呈N>K>Ca>Mg>P,非同化器官为Ca>N>K>Mg>P;不同立地条件下,马尾松林生产1t干物质所贮存的营养元素不同,立地条件愈好,营养元素效率愈高,贮存愈少;母岩、土层厚度和养分总量是影响马尾松林地上各器官,特别是针叶营养元素含量的重要因子,土壤N、P含量越高,马尾松人工林生物量越大.

关键词: 马尾松人工林, 森林生态系统, 营养元素, 生长规律, 生产力

Abstract: The study shows that the content of nutrient elements in various organs of masson pine is in order of needle>branch bark>stem bark>branch wood>stem wood, that in assimilated organ is in order of N>K>Ca>Mg>P, and that in non-assimilated organ is in order of Ca>N>K>Mg>P. The accumulated amount of nutrient elements in various organs is in order of stem wood>stem bark>needle>branch wood>branch bark, that in assimilated organ is in order of N>K>Ca>Mg>P, and that in non-assimilated organ is in order of Ca>N>K>Mg>P. The content of nutrient elements in1000kg dry matter under various site conditions is different. The better site condition, the higher efficiency of nutrient elements, and less accumulated amount. Parent rock, soil depth and total soil nutrient content are the major factors affecting the nutrient content of aboveground organs and of needles in particular. The higher soil Nand Pcontent, the greater biomass in masson pine plantation.

Key words: Masson pine plantation, Forest ecosystem, Nutrient element, Growth pattern