中国水土保持科学2011，Vol.9Issue(5)：79-85,7.
江子河小流域不同植被类型土壤粒径的多重分形特征
Multifractal analysis on soil particle size distribution for different vegetation types in Jiangzihe small watershed
摘要
Abstract
For exploring the effect of vegetation types on heterogeneity characteristics of soil particle size distribution and soil structure, the composition of soil particles and its multi-fractal characteristic for five vegetation types of Jiangzihe small watershed were studied with laser particle-size analysis method and muLti-fractal theory. The results show that; 1 ) The volume fractal dimension D and multi-fractal parameters Aa, R, f[ α ( -1)] - f[α (0 ) ] and/[α(l)]/f[α(0)] are significant positively correlated with the content of clay particles, I. E. , the higher the content of- soil fine particles, the more heterogeneous the soil particle distribution and the greater singularities. 2) The fractal dimension and multifractal parameters of different vegetation types are give as the following order; the spinney and mixed forest ( Pinus massoniana + Quercus variabilis) > tea plantation ( Camellia sinensis) > bamboo forest ( Phyllostachys pubescent) > paddy field, which means that the forest vegetation (protective forest) could improve the heterogeneity of soil texture and soil structure by raising the content of clay particles.关键词
土壤粒径/多重分形/激光粒度分析/江子河小流域Key words
soil particle size/multi-fractals/laser particle-size analysis/Jiangzihe small watershed引用本文复制引用
于东明,胡小兰,张光灿,刘霞,姚孝友,胡续礼..江子河小流域不同植被类型土壤粒径的多重分形特征[J].中国水土保持科学,2011,9(5):79-85,7.基金项目
国家自然科学基金“沂蒙山区退耕坡地土壤结构与入渗动态及其分形学机理”(31070627) （31070627）
淮河水利委员会水土保持监测专项“淮河流域水土保持监测站点布局与下垫面优化配置研究”(SBJ-2010-001)和“淮河流域水土保持监测分区研究”(SBJ-2011-001) （SBJ-2010-001）
