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当前位置: 首页 > 文章 > 连栽马尾松人工林土壤肥力比较研究 林业科学研究 2011,24 (3) 357-362
Position: Home > Articles > Comparison on Soil Fertilities of Masson Pine Plantations of Different Generations Forest Research 2011,24 (3) 357-362

连栽马尾松人工林土壤肥力比较研究

作  者：
何佩云;丁贵杰;谌红辉
单  位：
贵州大学造林生态研究所;贵州师范大学生命科学学院;中国林业科学研究院热带林业实验中心
关键词：
马尾松;连栽;人工林;土壤肥力;地力衰退
摘  要：
采用配对样地法,以不同栽植代数(1、2代)、不同发育阶段(8、15、18、20 a)的马尾松人工林为对象,研究了连栽幼龄林、中龄林土壤肥力的变化情况。结果表明:连栽后,无论是幼龄林还是中龄林,林地土壤密度趋于下降,土壤总孔隙度和含水率则呈上升趋势,林地土壤物理性质得到改善,且中龄林20 40 cm层土壤密度和总孔隙度在1、2代间的差异达显著水平;连栽后,林地土壤全K、全Mg及pH值趋于下降,而有机质、全N、全P、全Ca及速效N、P、K养分均呈上升趋势,且幼龄林0 20 cm层土壤有效P含量以及土壤pH值、中龄林0 20 cm层土壤水解N含量以及土壤全N、有效P、速效K、全K含量在1、2代间的差异达显著或极显著水平。连栽后,幼龄林和中龄林土壤全Fe、Al、Cu、Zn、Mn含量均呈下降趋势,且Mn含量在1、2代幼龄林和中龄林间的差异达显著水平。
译  名：
Comparison on Soil Fertilities of Masson Pine Plantations of Different Generations
作  者：
HE Pei-yun1,2,DING Gui-jie1,CHEN Hong-hui3(1.Institute of Siviculture and Ecology,Guizhou University,Guiyang 550025,Guizhou,China;2.College of life Sciences,Guizhou Normal University,Guiyang 550001,Guizhou,China;3.Experimental Centre of Tropical Forestry,Chinese Academy of Forestry,Pingxiang 532600,Gangxi,China)
关键词：
Pinus massoniana;successive rotation;plantation;soil fertility;soil fertility degradation
摘  要：
The changes of soil fertilities on young and half-mature Masson pine(Pinus massoniana) plantations with different generations were studied through the pair method with different generations(1,2) and ages(8,15,18,and 20 a).The results as follows: after successive rotation,regardless of being the young growth or the half-mature forest,the soil density decreased,soil total porosity and soil moisture were on the rise,the soil physical properties was got improvement.The differences of soil density and soil total porosity in 20-40 cm half-mature forest between first and second generation were significant level.After successive rotation,the total K,total Mg and pH were declining,while the organic matter,total N,total P,total Ca and alkaline hydrolysis N,available P,available K were on the rise,and the differences of available P in 0-20 cm young forest and pH,the differences of alkaline hydrolysis N in 0-20 cm half-mature forest and total N,available P,available K,total K between first and second generation were significant or most significant level.The soil total Fe,Al,Cu,Zn,and Mn contents in young and half-mature forest were declining,and the differences of total Mn contents in young and half-mature forest between first and second generation reached significant level.

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