期刊论文

中文

中南林业科技大学学报

1673-923X

2004

24

4

6-10

10.3969/j.issn.1673-923X.2004.04.002

国家自然科学基金项目"森林水文学过程中多烷芳烃迁移转化机制研究"的部分内容(编号30271043).；

本校为第一机构

对樟树人工林生态系统的大气降水,树干茎流,穿透水中N、P、K、Ca、Mg、Cu、Zn、Mn、和SiO29种养分元素含量进行了测定.结果表明:不同月份大气降水养分元素含量不同,各元素各月平均含量按大小排序为Ca>SiO2>NH4+-N>Zn>K>NO3--N>Mg>Mn>P>Cu;大气降水经过林冠层后,树干茎流、林内穿透水中各养分元素含量变化基本一致,均表现季节动态变化,大多数元素含量增加;树干茎流中各元素含量按大小排序为Ca>K>NH4+-N>SiO2> NO3--N>Mg>Zn>Mn>P>Cu,林内穿透水中各元素含量按大小排序为Ca>K>NH4+-N>SiO2>Zn>NO3--N>Mg>Mn>P>Cu,树干茎流中Cu和Zn为负淋溶.

The concentrations of 9 nutrient elements (N、P、K、Ca、Mg、Cu、Zn、Mn、SiO_2) in rainfall, stem-flow and through-fall were measured in the artificial forest of Cinnamomum camphora (L.) Presl. The results show: the concentrations of the nutrients in rainfall vary according to the month; the concentration sequence of the nutrient elements in precipitation goes as follows: Ca>SiO_2>NH_4~+-N>Zn>K>NO_3~--N>Mg>Mn>P>Cu; the concentrations of the nutrients in both stem-flow and through-fall also vary in the same way and change seasonally, most of them...