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林业资源管理 ›› 2014, Vol. 0 ›› Issue (4): 92-97.doi: 10.13466/j.cnki.lyzygl.2014.04.018

• 科学研究 • 上一篇    下一篇

玉树东南部森林土壤养分评价

赵串串1, 赵巧玉1, 安若兰1, 孟汉龙1, 宋枘泽1, 董旭2   

  1. 1.陕西科技大学 资源与环境学院,西安 710021;
    2.青海省林业调查规划院,西宁 810008
  • 收稿日期:2014-05-08 修回日期:2014-06-12 出版日期:2014-08-28 发布日期:2020-11-23
  • 作者简介:赵串串(1976-),女,西安人,副教授,硕士,主要从事流域水环境模拟与生态环境保护方面研究。Email:sxkjdxzcc@126.com
  • 基金资助:
    青海省公益林横向项目

Evaluation of the Forest Soil Nutrient in Southeast of Yushu

ZHAO Chuanchuan1, ZHAO Qiaoyu1, AN Ruolan1, MENG Hanlong1, SONG Ruize1, DONG Xu2   

  1. 1. College of Resources and Environment,Shaanxi University of Science and Technology,Xi’an,710021,China;
    2. Qinghai Provincial Forest Inventory and Planning Institute,Xining 810008,China
  • Received:2014-05-08 Revised:2014-06-12 Online:2014-08-28 Published:2020-11-23

摘要: 将土壤有机质、全氮、全磷、全钾、速效氮、速效磷和速效钾作为评价指标,应用物元分析法建立综合评价模型,对玉树东南部森林土壤养分进行了评价,并对土壤养分限制因子的影响因素进行方差分析。结果表明:玉树东南部森林土壤整体养分状况良好,速效磷含量缺乏成为限制因子;林型和森林群落复杂性对速效磷影响显著(P=0.05),针阔混交林与复杂群落结构下速效磷含量最高。物元模型在评价过程中表现出优势,是土壤养分评价的理想方法。

关键词: 土壤养分, 物元分析, 林型, 群落结构

Abstract: The comprehensive evaluation model based on matter-element analysis method was applied to evaluation of the forest soil nutrient in southeast of Yushu,with the soil organic matter,total nitrogen,total phosphorus,total potassium,available nitrogen,available phosphorus and available potassium chosen as evaluation indexes.Results indicated that the situation of forest soil nutrient in southeast of Yushu was favorable,but the available phosphorus became the limiting factor due to its poor content among the seven indicators.Forest type and forest community complexity had significant effects on available phosphorus (P=0.05).Available phosphorus content under mixed needle leaf forest and complex community structure was highest.Matter-element model presented its advantage in the process of assessment,and was an ideal method for soil nutrient evaluation.

Key words: matter-element analysis, partial correlation analysis, forest type, community structure

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