农业机械学报2012，Vol.43Issue(5)：43-48,42,7.DOI:10.6041/j.issn.1000-1298.2012.05.008
黄土丘陵区土壤粒径分布单重分形和多重分形特征
Monofractal and Multifractal Analysis on Soil Particle Distribution in Hilly and Gully Areas of the Loess Plateau
摘要
Abstract
Monofractal and multifractal analysis were combined to quantitatively investigate soil particle size distribution ( PSD) in hilly and gully areas of the Loess Plateau, and the effect of land uses on PSD parameters was analyzed. The results indicated that the PSD showed heterogeneous distribution, had multifractal feature, and multifractal spectrum functionf(α) -α were asymmetrical convex curve. There was no significant relationship between capacity dimension (D0) and soil particle contents. Clay contents were positively correlated with the entropy dimension (D1), correlation dimension (D2) and the width of multifractal spectra △α (P <0. 01). The clay contents, silt contents, sand contents and dimension of silt domain (Dsilt) values were significantly influenced by land uses (P < 0. 01). The multifractal analysis provided an accurate method to characterize the PSD.关键词
黄土丘陵区/土壤粒径分布/单重分形/多重分形Key words
Hilly and gully areas of the Loess Plateau/ Soil particle size distribution/ Monofractal/ Multifractal分类
农业科技引用本文复制引用
白一茹,汪有科..黄土丘陵区土壤粒径分布单重分形和多重分形特征[J].农业机械学报,2012,43(5):43-48,42,7.基金项目
国家高技术研究发展计划(863计划)资助项目(2010AA11A302-1)和国家科技支撑计划资助项目(2007BAD88B05) （863计划）
