| 马尾松种源针叶内痕量元素数量变异与生长相关性* |
| |
| 引用本文： | 季孔庶.马尾松种源针叶内痕量元素数量变异与生长相关性*[J].浙江农林大学学报,1997,14(3):231-236. |
| |
| 作者姓名： | 季孔庶 |
| |
| 作者单位： | 1.南京林业大学森林资源与环境学院, 南京 210037 |
| |
| 基金项目： | 八五国家科技攻关资助项目 |
| |
| 摘 要： | 采用电感耦合等离子直读光谱仪(ICPQ)测定休眠期马尾松10个种源针叶内10种痕量矿质元素的水平, 并测量树高和胸径的平均生长量。ICPQ检测到其中7种痕量元素, 而其余的3种均低于其测定范围。痕量矿质营养存在种源水平上的变异, 各元素在种源间的离散程度随含量降低而趋小, 且不少元素与原产地经、纬度呈负相关。对马尾松树高和胸径生长量与痕量矿质营养水平进行逐步回归分析, 初步认为锂元素可作为马尾松生长量的早期预测因子。
|
| 关 键 词： | 马尾松 叶痕量元素 种源试验 生长量 |
| 收稿时间： | 1996-11-15 |
Quantitative Variation of Trace Elements inNeedles of Pinus massoniana From Different Provenances and Their Correlation With Annual Growth. |
| |
| Ji Kongshu.Quantitative Variation of Trace Elements inNeedles of Pinus massoniana From Different Provenances and Their Correlation With Annual Growth.[J].Journal of Zhejiang A&F University,1997,14(3):231-236. |
| |
| Authors: | Ji Kongshu |
| |
| Affiliation: | 1.Nanjing Forestry University, Nanjiang 210037, Jiang su, PRC |
| |
| Abstract: | Ten trace elements in needles of Pinus massoniana from 10 provenances were analysed during dormancy with an Inductively Couped Plasma Quantometer ( ICPQ) . And the annaual growth of DBH and height was measured. The concent ration of three elements was too low to be determined by ICPQ. Variation of the trace element was noted among provenances. Coefficients of the variation tend to be smaller with the decrease of the element concentration. Contents of severa l elements were negatively correlated with the latitude and the longitude of provenances. An analysis of stepwise regression between trace elements and the growth o f both DBH and height indicated that the content of Li could be used as an early test factor for the growth of Pinus massoniana. |
| |
| Keywords: | |
|
| 点击此处可从《浙江农林大学学报》浏览原始摘要信息 |
|
点击此处可从《浙江农林大学学报》下载全文 |
