桉树人工林土壤养分效应及其评价  

Effects of Eucalypt Plantation on Soil Nutrient and Its Soil Fertility Evalution

作　　者：刘涛 杨民胜[2] 刘德桃[3] 易平 吴志华[2] 

机构地区：[1]广西区黄冕林场,广西鹿寨545600 [2]国家林业局桉树研究开发中心,广东湛江524022 [3]华南理工大学制浆造纸工程国家重点实验室,广东广州523616

出　　处：《桉树科技》2007年第1期31-34,共4页Eucalypt Science & Technology

基　　金：国家林业局"948"创新项目"桉树大径材培育技术创新与示范"

摘　　要：研究了桉树人工林的土壤养分效应,并通过改进的内梅罗(Nemerow)综合指数对土壤肥力进行了综合评价。结果表明:试验地林地土壤属于贫瘠水平,表土层A层土壤肥力综合指标值显著高于中土层B层;不同树种人工林土壤肥力存在着显著差异,依据综合肥力系数大小:柳桉>巨尾桉>赤桉>粗皮桉>巨桉;综合表明桉树人工林土壤养分效应呈正面效应。但由于多因素影响以及时间较短的缘故,而这种养分效应作用不显著。Effects of euealypt plantation on soil nutrient and its soil fertility evalution by the improved Nernerow composite index were performed.The results were showed： the site soil fertility was very poor. The soil fertility indexes of its surface soils（layer A） were higher markedly than that of subsur- face soils（layer B）.There existed marked differences among different euealypt plantations in soil fertility, and its soil fertility rank was E. saligna 〉 E. grandis × E. urophylla 〉 E. camaldulensis 〉 E. pellita 〉 E.grandis . Eucalypt plantation had a positive effect on soil nutrient, but this effect was not marked by reason of many factors and forest age possibly.

关 键 词：桉树人工林 土壤养分 内梅罗综合指数 土壤肥力 

分 类 号：S718.516[农业科学—林学]