| 马尾松人工幼林土壤肥力变化及其综合评价研究 |
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| 引用本文： | 覃其云,曹继钊,李军,黄开勇,唐健.马尾松人工幼林土壤肥力变化及其综合评价研究[J].林业资源管理,2013(1):80-85. |
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| 作者姓名： | 覃其云 曹继钊 李军 黄开勇 唐健 |
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| 作者单位： | 1. 广西壮族自治区林业科学研究院,南宁530002;国家林业局中南速生材繁育实验室,南宁530002;广西优良用材林资源培育重点实验室,南宁530002
2. 广西环江毛南族自治县华山林场,广西环江,547100 |
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| 基金项目： | 世界银行贷款广西综合林业发展和保护项目监测子项目"土壤肥力监测" |
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| 摘 要： | 通过分析广西环江县桉树林及砍伐后种植马尾松和荒地的土壤化学性质,运用灰色关联分析方法,研究和评价马尾松和荒地取代桉树后土壤肥力变化状况。研究结果显示:取代桉树林后,4.0a马尾松和荒地的土壤碱解N、有效P、速效K、交换性Ca和有效Zn有所提高,土壤pH值有所改善,而全N、全P、全K、交换性Mg和有效Cu有所减少。0～20cm层土壤有机质和有效B有所降低,20～40cm层的反而有所提高。不同林龄马尾松和荒地的土壤综合肥力普遍较差。造林4年后,同土层马尾松林的土壤综合肥力低于荒地。除4.0a荒地0～20cm层的土壤综合肥力基本无变化外,其他4.0a马尾松和荒地土壤综合肥力都有不同程度退化,而以4.0a马尾松20～40cm层的土壤肥力退化最严重。研究结果可为马尾松人工幼林的配方施肥提供理论依据。
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| 关 键 词： | 马尾松 土壤肥力 灰色关联分析 |
Research on the Variation of the Soil Fertility in the Planted Young Pinus massoniana Forest and Comprehensive Evaluation of Its Soil Fertility |
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| QIN Qiyun
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CAO Jizhao
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LI Jun
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HUANG Kaiyong
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TANG Jian.Research on the Variation of the Soil Fertility in the Planted Young Pinus massoniana Forest and Comprehensive Evaluation of Its Soil Fertility[J].Forest Resources Management,2013(1):80-85. |
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| Authors: | QIN Qiyun CAO Jizhao LI Jun HUANG Kaiyong TANG Jian |
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| Institution: | 1,2,3(1.Guangxi Zhuang Autonomous Region Forestry Research Institute,Nanning,Guangxi 530002,China;2.Key Laboratory of Central South Fast-growing Timber Cultivation of the State Forestry Administration,Nanning,Guangxi 530002,China;3.Guangxi Key Laboratory of Superior Timber Tree Resource Cultivation,Nanning,Guangxi 530002,China;4.Huashan Forest Farm of Huanjiang County,Huanjiang,Guangxi 547100,China) |
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| Abstract: | The soil chemical characteristics were analyzed from the forest land of eucalyptus and from the forest land of Pinus massoniana and wasteland that were planted in the same land of the former-eucalyptus growing after they had been felled in Huanjiang county of Guangxi province.Grey correlation analysis was used to study and evaluate the status of soil fertility changes for Pinus massoniana and wasteland.The results showed that for 4 year-old Pinus massoniana and the wasteland,the content of alkaline solution N,effective P,available K,exchangeable Ca and effective Zn in forest soil increased and the pH value was also improved as before,however,total N,total P,total K,exchangeable Mg and effective Cu decreased.The content of organic matter and effective B decreased in 0~20cm soil layer,but increased in 20~40cm soil layer.The integrated soil fertility was generally poor in different aged Pinus massoniana and the wasteland.After 4 years growth,soil integrated fertility of same soil layer of Pinus massoniana was lower than the wasteland.Except the soil integrated fertility of 4 age wasteland had no any variation in 0~20cm soil layer,and that of 4 the Pinus massoniana and the wasteland degraded,but with the most serious soil fertility of the Pinus massoniana.The research results provide theories for formula fertilization of the planted young Pinus massoniana forest. |
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| Keywords: | Pinus massoniana soil fertility grey correlation analysis |
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