摘要
藏东南是西藏原始森林的主要分布区,2001年10月15日~25日在林芝地区色季拉山生态系统定位站原始冷杉林,采用固定样地法测定了生态系统中草本层不同器官的养分含量。研究表明,草本植物地上部分的养分总含量比地下部分高出20%左右。各元素的含量大小依次为:N>K>Mg>Ca>Mn>Fe>P>Na>Cu>Zn,变动范围为0.004%~1.27%。草本层养分总贮量是15.36 kg.hm-2,不同种类草本植物的养分平均含量和养分总贮量有较大的差异。
The Southeast Tibet is covered with abundant virgin forest.The nutrient contents in the various parts of herbage layer in fir(Abies georgei var smithii) forest ecosystem,which was located on positioning station for ecosystem research in SeJila mountain of Linzhi region,Tibet,by the fixed sampling method from October 15 to 25,2001.It was showed that the total content of nutrient is more about 25% in the overground parts than in the underground ones of herbage layer.A serial of elements in nutrient with the r...
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2008年第4期7-12,共6页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
中国林业科学研究院基金
关键词
西藏
冷杉
草本层
养分特征
Tibet fir
Abies georgei var smithii
herbage layer
nutrient characteristics
