基于主成分回归分析的河道淤积成因研究

针对长江流域下游平原感潮河网地区河道淤积受自然条件和人类活动诸多因素交叉影响的特点，综合分析区域内中小河道淤积的影响因素并按重要程度排序，以便制定相应的控制对策。选取上海市青浦区作为研究区域，监测区域内33条河道2006~2010年的淤积情况，结合监测期间的水文、气象以及土地利用等资料，运用主成分回归分析方法和MATLAB软件进行计算对比。结果表明，监测河道附近的人类活动所引起的水土流失、垃圾排放和水体污染等是导致区域内中小河道产生淤积的主要因素。

Study on sedimentation in river channel based on principal component regression analysis

According to the fact that the sedimentation of tidal river channels in river network region in the plain of lower Yangtze River Basin is affected by natural conditions and human activities,the influential factors of sedimentation in this region are analyzed and ordered according to their importance to make corresponding countermeasures.We chose Qingpu district,a typical plain tidal river area in Shanghai,as a study area,and measured the sedimentation in 33 small tidal rivers from 2006 to 2010,and collected...