中文摘要：

年度分泌物和年度推迟的沉积 Jialing 河集水的大量 Beipei 水文学车站被分析在最后五十年(19562006 ) 描述 Jialing 河的趋势。这些负担也被分析查明在 Kendalls Tau-b 关联分析和回归分析的帮助下与它的变化联系的有影响的因素。结果显示 Jialing 河年度分泌物没显示出重要趋势在 >95% 信心水平当年度沉积负担看起来在最后 50 年有一个重要减少趋势时。在年度沉积负担的减少在一年 1985 以后是特别地明显的，在哪个在沉积水平的实质的移动发生了。这移动在 1980 年代被归因于众多的水坝的构造。在 1985 的一年以后，然而，有不同沉积负担和沉积流量比率的二个期刊阶段(19861991 和 19922006 ) 被识别。时期 19922006 被低沉积负担描述，它最可能由于土壤和水保存的大规模的影响，它发生在 1980 年代的结束。最后，当模特儿描述在分泌物和沉积之间的关系象在沉积负担之间一样的负担，分泌物和沉积流量比率和沉积流量比率被构造。

英文摘要：

Annual discharge and annual suspended sediment loads of Beipei Hydrological Station of the Jialing River catchment were analyzed to describe the trend of Jialing River over the last five decades （1956-2006）. These loads were also analyzed to ascertain the influential factors associated with its variation with the help of Kendall＇s Tau-b correlation analysis and regression analysis. The results indicated that the Jialing River annual discharge showed no significant trend at 95% confidence level while the annual sediment load appeared to have a significant decrease trend over the last 50 years. A decrease in the annual sediment load was particularly apparent after the year 1985, at which a substantial shift in the sediment level occurred. This shift is attributed to the construction of numerous dams in 1980s. However, after the year of 1985, two periodical stages （1986-1991 and 1992-2006） with distinct sediment load and sediment-runoff ratio were identified. The period 1992-2006 is characterised by low sediment load, which is most probably due to the impact of large scale of soil and water conservation, which took place at the end of the 1980s. Last, models describing the relationship between the discharge and the sediment load, discharge and sediment-runoff ratio as well as between the sediment load and sediment-runoff ratio were constructed.