| 尾巨桉树干茎流影响因子分析 |
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| 引用本文： | 王志超,魏国余,竹万宽,杜阿朋.尾巨桉树干茎流影响因子分析[J].桉树科技,2015(4):10-14. |
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| 作者姓名： | 王志超 魏国余 竹万宽 杜阿朋 |
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| 作者单位： | 1. 国家林业局桉树研究开发中心,广东 湛江,524022;2. 广西国有高峰林场,广西 南宁,530001 |
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| 基金项目： | 国家自然科学基金项目(31300383)；中央级公益性科研院所基本科研业务费专项(CAFYBB2014QB024)；广东湛江桉树林生态系统国家定位观测研究站(2015-LYPT-DW-006) |
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| 摘 要： | 为了准确认识桉树的生态水文功能，本文通过野外实测法，对尾巨桉不同径级下的树干茎流量进行连续观测，并配合降雨量及树体自身特征对茎流量的影响因子特征进行研究。结果发现：尾巨桉树干茎流量与降雨量呈显著的正相关线性模型，且产生茎流的降水临界值随着径级的增加而增大；尾巨桉树干茎流与胸径和冠幅呈极显著正相关(P＜0.01)，相关系数分别为0.471和0.573，也与树高呈显著正相关(P＜0.05)，相关系数为0.36。
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| 关 键 词： | 尾巨桉 树干茎流 降雨量 树体特征 |
Analyses of Factors Influencing Tree Stem Flow of Eucalyptus |
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| Abstract: | In order to accurately understand the ecological and hydrological functions of Eucalyptus plantations, this article reports on field surveys conducted to study factors influencing tree stem flow of Eucalyptus, focusing on rainfall and tree size and morphology. The results showed that stem flow of eucalypt trees and rainfall showed a significantly, positive and linear relationship. Stem flow also increased as diameter class increased with stem flow being significantly, positively correlated with both DBH and crown size (P<0.01) with correlation coefficients of 0.47 and 0.57 respectively. Tree height also had a significant, positive correlation (P<0.05) with stem flow, with a correlation coefficient of 0.36. |
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| Keywords: | Eucalyptus urophylla × E grandis stem flow rainfall tree characteristics |
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