| 紫茎泽兰入侵对桉树人工林土壤的影响分析 |
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| 引用本文： | 黄娟,杨蕊.紫茎泽兰入侵对桉树人工林土壤的影响分析[J].绿色科技,2011(12). |
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| 作者姓名： | 黄娟 杨蕊 |
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| 作者单位： | 西南林业大学环境科学与工程学院,云南昆明,650214 |
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| 摘 要： | 通过研究紫茎泽兰入侵对桉树人工林土壤有机质、全氮、水解氮的影响，选取了不同坡向的紫茎泽兰入侵桉树人工林高、中、低密度下0～100cm的10层土壤中有机质、全氮、水解氮的含量分析，并以没有紫茎泽兰入侵下的按树人工林土壤作为对照样地来进行说明。结果表明：随土壤深度的增加，土壤中有机质、全氮、水解氮的含量均呈下降趋势，在50～100cm基本趋于稳定，有机质、全氮、水解氮三者之间呈正相关性，阴坡和阳坡高、中、低密度下有机质、全氮、水解氮含量存在着明显差异，与未入侵区相比也有差异。
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| 关 键 词： | 紫茎泽兰 桉树 有机质 全氮 水解氮 密度 |
Invasive Effects of Ageratina Adenophora Spergel on Soil TOC,TN and HN Ot Eucalyptus Plantation |
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| Abstract: | This paper studies the invasion effects of Eupatorium adenophorum on soil ~I＇OC,＇rN and HN of Eucalyptus plantation. To explore the effects of this weed invasion on soil TOC,TN and HN The paper selects a different aspect and different density（high,medium and low） of the weed invasion,makes an analysis of 0-100cm in soil TOC, TN and HN, and compares with no invased zone. The results show that soil TOC,TN and HN content decrease as soil depth increases,but it is basically stabilized in the range of 50-- 100cm. There is a positive correlation among TOC,TN and HN. TOC,TN and HN of high,medium,low density are clearly different in the shady and sunny slope, and those of no invaded zone also varies. |
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| Keywords: | Eupatorium adenophorum Eucalyptus organic matter total N hydrolytic N density |
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