人为干扰对轿子山自然保护区典型 植物群落及土壤理化性质的影响
DOI:
作者:
作者单位:

西南林业大学

作者简介:

通讯作者:

中图分类号:

中图分类号:Q145; Q149

基金项目:

国家自然科学基金:气候变暖对哀牢山常绿阔叶林根际土壤碳过程的影响研究(编号:31560189)


Effects of Human Disturbance on Plant Communities and Physicochemical Soil Properties in the Natural Reservation Area of Jiaozi Mountain
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    摘 要:采用样方法对轿子山主干线路两侧不同海拔高度的土壤和植物群落进行样地调查,分析了不同人为干扰强度(对比区CK、轻度干扰区LD、中度干扰区MD、高度干扰区HD)下对土壤理化性质和典型植被群落的影响和相互关系。结果表明:(1)人为干扰对土壤理化性质具有较大影响,土壤含水量、土壤孔隙度和土壤电导率随着人为干扰强度的增大而降低,土壤容重随着人为干扰强度的增加而增加,土壤pH值未表现出明显差异。(2)人为干扰降低了土壤碳素和氮素的含量,钾素浮动最大表现的最为敏感,磷素没有明显差异(p>0.05),人为干扰对土壤磷素变化影响较小。(3)随着人为干扰强度的增大,土壤酶活性也显著降低,三种酶活性变幅的大小顺序依次是:脲酶活性>过氧化氢酶活性>磷酸酶活性。(4)轿子山乔木、灌木、草本受人为干扰强度的影响,群落生物量的大小排序为CK>LD>MD>HD。(5)人为干扰区域的有机碳与TN、TK和生物量呈极显著正相关(p<0.01),与TP没有显著相关。

    Abstract:

    Abstract: Using field investigation and quadrat method, a study was conducted on soil and plant communities of the main trunk both sides and different altitude in Jiaozi mountain. The impacts and relationships between physicochemical properties and typical plant communities were analyzed under different human disturbance (check plot CK, light degree disturbance area LD, medium degree disturbance area MD, height degree disturbance area HD). The results showed that: 1) human disturbance has a great effect on soil physicochemical properties; soil water content, soil porosity and soil electrical conductivity decreased with increase of the human disturbance; soil bulk density increased with increasing human disturbance and there being no obvious differences on PH value; 2) human disturbance lower the content in carbon in the soil and nitrogen; potassium is floating and most sensitive among the analyzed data; there being no obvious differences on phosphorus (p>0.05) and human disturbance has less effected on phosphorus; 3) with the increasing intensity of human disturbance, soil enzyme activities significantly reduced, three enzyme activities changed from big to small is urease activity, catalase activity and phosphatase activity; 4) the impact of human disturbance on the biomass of tree, shrub and herb in Jiaozi mountain from big to small is CK, LD, MD and HD; 5) organic carbon, TN, TK and biomass in the human disturbance area have a significant correlation, but no obvious correlation in TP.

    参考文献
    相似文献
    引证文献
引用本文

杨大新. 人为干扰对轿子山自然保护区典型 植物群落及土壤理化性质的影响[J]. 科学技术与工程, 2016, 16(32): .
yangdaxin. Effects of Human Disturbance on Plant Communities and Physicochemical Soil Properties in the Natural Reservation Area of Jiaozi Mountain[J]. Science Technology and Engineering,2016,16(32).

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2016-07-04
  • 最后修改日期:2016-07-04
  • 录用日期:2016-08-12
  • 在线发布日期: 2016-11-22
  • 出版日期:
×
律回春渐,新元肇启|《科学技术与工程》编辑部恭祝新岁!
亟待确认版面费归属稿件,敬请作者关注