土壤颗粒粒径分布质量分形维数和体积分形维数的对比
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金项目(No.4062500140601040);土壤与农业可持续发展国家重点实验室开放基金资助


COMPARISON OF MASS AND VOLUME FRACTAL DIMENSIONS OF SOIL PARTICLE SIZE DISTRIBUTIONS
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:

    用激光衍射法(LD法)和吸管法实测了60个富铁土土样的颗粒粒径分布(PSD)数据,在此基础上分别计算了颗粒的质量分形维数Dm和体积分形维数Dv。结果发现:由于LD法"低估"了黏粒部分,因此Dv相对低于Dm;由于DvDm之间呈现出了一定的正相关性(p<0.001),且Dv与其实测黏粒之间呈一定的正相关性,因此Dv在一定程度上也能够用于表征土壤的某些基本属性;LD法可以对粒径进行更多的分级,但不同的粒径分级会对Dv产生影响,对粒径的再细分会导致Dv略微降低。

    Abstract:

    Laser diffraction(LD)technique and pipette method were used to measure particle size distributions(PSD)of 60 ferrosol samples. Based on the measurements,mass fractal dimension,Dm,and volume fractal dimension,Dv,were calculated and compared. Results show that Dv is lower than Dm because the laser diffraction technique "underestimated" the clay fraction compared to the pipette method. As significant linear correlations were observed between Dv and Dm as well as between Dv and its measured clay fraction,Dv could also be used to characterize some basic soil properties. The LD method could divide soil particle size into more classes with distinctive Dv value. Further division of particle size classes might lead to slight decrease in Dv.

    参考文献
    相似文献
    引证文献
引用本文

杨金玲,李德成,张甘霖,赵玉国,赵文君,唐先干.土壤颗粒粒径分布质量分形维数和体积分形维数的对比[J].土壤学报,2008,45(3):413-419. DOI:trxb10.11766/200612270305 Yang Jingling, Li Decheng, Zhang Ganlin, Zhao Yuguo, Zhao Wenjun, Tang Xiangan. COMPARISON OF MASS AND VOLUME FRACTAL DIMENSIONS OF SOIL PARTICLE SIZE DISTRIBUTIONS[J]. Acta Pedologica Sinica,2008,45(3):413-419.

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:2006-12-27
  • 最后修改日期:2007-06-11
  • 录用日期:
  • 在线发布日期: 2013-05-10
  • 出版日期: