| 不同代次木麻黄人工林土壤理化性质的动态变化 |
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| 引用本文： | 徐文辉.不同代次木麻黄人工林土壤理化性质的动态变化[J].福建林业科技,2012,39(3):29-33. |
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| 作者姓名： | 徐文辉 |
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| 作者单位： | 福建省林业调查规划院,福建福州,350003 |
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| 基金项目： | 国家“十一五”科技支撑计划(2009BADB2B0302) |
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| 摘 要： | 为探讨木麻黄人工林连栽地土壤理化性质的变化,对福建省东山岛林龄为46、15、8 a的1代、2代、3代木麻黄林地的土壤物理性质、养分含量进行了比较研究。结果表明:连栽导致土壤肥力降低,2代和3代林地土壤有机质、全N、水解N及全K含量比1代林均有所下降,pH有所升高,不同土层内各代数间差异均达到显著水平;连栽造成土壤板结,土壤物理性质1代优于2代、3代,土壤容重随林地的连栽代数增加而增大,总孔隙度、管孔隙度均呈现下降趋势。
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| 关 键 词： | 木麻黄 连栽 土壤理化性质 |
Dynamics of Soil Physical and Chemical Properties of Casuarina equisetifolia Plantations of Different Generations |
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| XU Wen-hui.Dynamics of Soil Physical and Chemical Properties of Casuarina equisetifolia Plantations of Different Generations[J].Journal of Fujian Forestry Science and Technology,2012,39(3):29-33. |
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| Authors: | XU Wen-hui |
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| Institution: | XU Wen-hui(Fujian Forestry Investigating and Planning Institute,Fuzhou 350003,Fujian,China) |
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| Abstract: | A research was performed in Casuarina equisetifolia forest on Dongshan Island in the first,the first,second and third generations with the age of 46a,15a and 8a were compared by the soil physical properties and nutrient contents,the results showed that: there was measurable reduction in soil fertility with successive planting,the soil organic matter,total N,valid-N and total K in the second and third generation were fewer than those in the first generation,but the pH was higher,differences among generations on different soil layers reached the evident level;successive planting could cause soil harden,the physical properties of soil in the first generation was better than the second and third generation,the unit weight was increased with the successive rotation,the total porosity and capillary porosity were declined. |
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| Keywords: | Casuarina equisetifolia successive planting soil physical and chemical properties |
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