植物生态学报 ›› 2002, Vol. 26 ›› Issue (5): 525-532.

所属专题: 稳定同位素生态学

• 论文 • 上一篇    下一篇

酚类物质对杉木幼苗15N养分吸收、分配的影响

陈龙池,廖利平,汪思龙,黄志群,高洪   

  • 发布日期:2002-05-10
  • 通讯作者: 陈龙池

Effect of Phenolics on 15N Nutrient Absorption and Distribution of Cunninghamia lanceolata

CHEN Long-Chi, LIAO Li-Ping, WANG Si-Long, HUANG Zhi-Qun and GAO Hong   

  • Published:2002-05-10
  • Contact: CHEN Long-Chi

摘要:

应用15N同位素示踪技术,通过盆栽实验研究了香草醛和对羟基苯甲酸对杉木(Cunninghamia lanceolata)幼苗N素养分吸收、分配的影响,结果发现香草醛及其与对羟基苯甲酸的混合物(浓度比1∶1)明显抑制了杉木幼苗的生长和对15NO3-离子的吸收,10 mmol·L-1的香草醛使杉木幼苗根、茎、叶生物量分别下降了25.3%、13.5%、5.7%,15N吸收量分别减少了38.5%、48.1%、46.5%;10 mmol·L-1的混合物使杉木幼苗根、茎、叶生物量分别下降了33.5%、36.0%、21

Abstract:

Pure Chinese fir (Cunninghamia lanceolata) plantations, a major commercial tree species in South China, have been extensively replanted on the same site in successive rotations, in response to the growing need for timber. The resultant soil degradation ha