CAJ | 학술논문

采用分形理论与线性回归方法研究了黄河宁蒙河段附近地区沙漠表层沙样的粒度及其分形维数特征,发现其机械组成中以细砂、粉砂为主,粒度分形维数值与砂粒呈反相关关系,与粉粒、黏粒呈正相关关系.从腾格里沙漠沿河而下直到库布齐沙漠,4个沙区的分选系数、粒度分形维数值依次减小,并且两者呈现较好的正相关关系.在粒度及分形维数分析结果中,0.10 mm粒径是一个重要的分界值.
채용분형이론여선성회귀방법연구료황하저몽하단부근지구사막표층사양적립도급기분형유수특정,발현기궤계조성중이세사、분사위주,립도분형유수치여사립정반상관관계,여분립、점립정정상관관계.종등격리사막연하이하직도고포제사막,4개사구적분선계수、립도분형유수치의차감소,병차량자정현교호적정상관관계.재립도급분형유수분석결과중,0.10 mm립경시일개중요적분계치.
@@@@The fractal theory and the linear regression method were used to analyze the grain sizes and fractal dimension features of surface sand samples from the regions near Ningxia-Inner Mongolia section of the Yellow River. The result showed that the mechanical composition of these samples was mainly dominated by fine sand and silt. The fractal dimension values were positively correlative with the sand, but negatively with the silt and clay. From the Tengger Desert to the Hobq Desert along the Yellow River, the sorting coe?cients and grain-size fractal dimension values were gradually reduced, and they had a good positive correlation with each other. The 0.10 mm grain size was the important demarcation in the analysis results.