| 氮、硫沉降下邓恩桉人工林土壤与植株养分特征关系研究 |
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| 引用本文： | 吴承祯,洪伟,陈灿,林晗,范海兰,林勇明,李键,叶绍全.氮、硫沉降下邓恩桉人工林土壤与植株养分特征关系研究[J].南平师专学报,2013(2):1-7. |
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| 作者姓名： | 吴承祯 洪伟 陈灿 林晗 范海兰 林勇明 李键 叶绍全 |
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| 作者单位： | [1]武夷学院,福建武夷山354300 [2]福建农林大学桉树研究中心,福建福州350002 [3]福建省高校森林生态系统过程与经营重点实验室,福建福州350002 |
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| 基金项目： | 教育部博士点学科专项基金资助项目（项目编号：200803890010;20123515110011）; 国家自然科学基金资助项目（项目编号：30671664）; 福建省自然科学基金资助项目（项目编号：2011J01072） |
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| 摘 要： | 设计16个模式模拟氮、硫复合沉降对邓恩桉（Eucahetus dunnii）幼龄林土壤全量元素、土壤有效元素及林木枝、叶营养元素影响,采用典范相关分析方法探讨土壤和植物养分特征之间的关系。土壤全量元素与土壤有效元素的第一典范相关系数达显著水平,说明土壤全量元素对土壤有效元素有一定影响;在该对典范变量中U1的X4系数（0.4553）绝对值最大,V1的Y5系数（4.1306）绝对值最大,即土壤全量元素与土壤有效元素相关主要集中在土壤有机质与土壤交换性铝的正相关关系上。土壤全量、有效元素与叶营养元素的第一典范相关系数达到显著水平,说明土壤土壤全量、有效元素对叶营养元素有一定影响;在该对典范变量中U1的X9系数（12609.81）绝对值最大,V1的Y3系数（-0.7404）绝对值最大,即土壤全量、有效元素与叶营养元素主要集中在土壤交换性铝与叶钙含量之间呈现的负相关关系。土壤全量、有效元素与枝营养元素的第一典范相关系数达到显著水平,说明土壤土壤全量、有效元素对枝营养元素有一定影响;在该对典范变量中U1的X9系数（64.0683）绝对值最大,V1的Y4系数（-0.8676）绝对值最大,即土壤全量、有效元素与枝营养元素主要集中在土壤交换性铝与枝钾含量之间呈现的负相关关系。叶营养元素与枝营养元素的第一典范相关系数达显著水平,说明叶营养元素对枝营养元素有一定影响;在该对典范变量中,U1的X4系数（0.4781）绝对值最大,V1的Y4系数（0.7843）绝对值最大,即叶营养元素与枝营养元素主要集中在叶镁含量与枝钾含量之间呈现的正相关关系。通过对氮、硫沉降下土壤和植物养分特征之间的关系研究,为在酸沉降背景下制定邓恩桉管理和应对方案提供理论基础。
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| 关 键 词： | 氮、硫复合沉降 邓恩桉 养分特征 典范相关分析 |
The Relationship of Soil and Plant Nutrient in Eucahetus dunnii Plantation under the Deposition of Nitrogen and Sulfur |
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| WU Chengzhen,HONG Wei,CHEN Can,LIN Han,FAN Hailan,LIN Yongming,LI Jian,YE Shaoquan.The Relationship of Soil and Plant Nutrient in Eucahetus dunnii Plantation under the Deposition of Nitrogen and Sulfur[J].Journal of Nanping Teachers College,2013(2):1-7. |
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| Authors: | WU Chengzhen HONG Wei CHEN Can LIN Han FAN Hailan LIN Yongming LI Jian YE Shaoquan |
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| Institution: | 1.Wuyi University, Wuyishan, Fujian 354300;2.Research Center of Eucalyptus,Fujian Agriculture and Forestry University,Fuzhou Fujian 350002;3. Key Laboratory for Forest Ecosystem Process and Management of Fujian Province,Fuzhou,Fujian 350002) |
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| Abstract: | This article designs 16 patterns to simulate the effects of nitrogen and sulfur complex deposition on soil total quantity elements, soil effective elements, tree branches nutritions and tree leaves nutritions of young forest plots of Eucahetus dunnii, exploring the relationship between soil and plant nutrient characteristics by the method of typical correlation analysis. The results show that the first canonical correlation coefficient（r=0.9633） between soil total quantity elements and soil effective elements is significant. This illustrates that soil total quantity elements have certain influence on soil effective elements. And the main relationship between soil total quantity elements and soil effective elements concentrate on the positive correlation between soil organic matter and soil exchange aluminum, because the absolute value of X4 coefficient about U1 is greatest （0.4533） and absolute value of Y5 coefficient about V1 is the greatest （4.1306）. The first canonical correlation coefficients（r=0.9963） among soil total quantity elements, soil effective elements, leaf nutrition elements is significant. This means that soil total quantity elements and soil effective elements have certain influence on leaf nutrient elements. And the main relationship among soil total quantity elements, soil effective elements and leaf nutrient elements concentrate on the negative correlation between soil exchange aluminum and leaf calcium, because the absolute value of X9 coefficient about U1 was greatest（12609.81） and absolute value of Y3 coefficient about V1 was greatest（-0.7404）. The first canonical correlation coefficients（r=1） among soil total quantity elements, soil effective elements and branch nutrient elements is significant. This means that soil total quantity elements, soil effective elements have certain influence on branch nutrient elements. And the main relationship among soil total quantity elements, soil effective elements and branch nutrition elements concentrate on the negative correlation between soil exchange aluminum and branch potassium, because the absolute value of X9 coefficient about U1 was greatest（64.0683） and absolute value of Y4 coefficient about V1 was greatest（-0.8676）. The first canonical correlation coefficients（r=0.9427） between leaf nutrient elements and branch nutrient elements is significant. This means that leaf nutrient has certain influence on branch nutrient elements. And the main relationship between leaf nutrient elements and branch nutrient elements concentrate on the positive correlation between leaf magnesium and branch potassium, because the absolute value of X4 coefficient about U1 was greatest （0.4781） and absolute value of Y4 coefficient about V1 was greatest （0.7843）. This article studies the relationship between soil and plant nutrient characteristics under the deposition of nitrogen and sulfur, which provides the reasonable theoretical basis for scientific management and prevention scheme of Eucahetus dunnii under the circumstance of the increase of acid deposition. |
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| Keywords: | nitrogen and sulfur complex deposition Eucahetus dunnii nutrient characteristics typical correlation analysis |
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