| 火炬松人工林林木营养特性的研究 |
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| 引用本文： | 费世民.火炬松人工林林木营养特性的研究[J].林业科学,1995,31(4):299-309. |
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| 作者姓名： | 费世民 |
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| 作者单位： | 四川省林业科学研究院 |
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| 摘 要： | 通过试验控制，定位观测和养分元素分析测定，定量地研究了莎下蜀林场１５年生火炬松人工林林木矿质营养特征。
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| 关 键 词： | 火炬松 人工林 营养元素 空间变异 季节动态 |
STUDY ON NUTRIENT CHARACTERISTICS OF THE FOREST TREE IN A LOBLOLLY PINE PLANTATION |
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| Fei Shimin.STUDY ON NUTRIENT CHARACTERISTICS OF THE FOREST TREE IN A LOBLOLLY PINE PLANTATION[J].Scientia Silvae Sinicae,1995,31(4):299-309. |
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| Authors: | Fei Shimin |
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| Institution: | Forestry Academy of Sichuan Province Chengdu610081 |
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| Abstract: | The results from a quantitative study on the nutrient characteristics of the forest trees in a 15-year-old Pinus taeda plantation, located in Xiashu Forest Farm, Jiangsu Province by experimental control fixed position observation, and analysis of nutrient elements, show that (1) There is only a significant difference in P element among different layers of tree corwn,and in K element among various individual plants; (2) The seasonal dynamics changes in the contents of N, P, K, and Mg elements have a pattern of increase-decrease, however the cont entof Ca element enhance slightly. The contents of N, P, K in new shoots are relatively high, that of Ca, Mg is low, hereafter the contents of N, P, K have a pattern of incresae-constantdecrease, the content of Mg has a pattern of increase-relatively constant, Ca element is in a sustained increase status ; (3) There is a significant seasonal change in the contents of nutrient elements in branch, stem, bark and root; (4 ) The nutrient element contents in different parts of forest tree are in a rank of leaf>branch>root>stem>bark. |
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| Keywords: | Piuns taeda plantation Nutrient element Spacial variation Seasonal dynamics |
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