This article aims to evaluate the impact of urbanization on land use changes and the effects of land use changes on catchment’s runoff. The maximum likelihood method was used to interpret the seven remote sensing images of the Puhe River Basin from 1985 to 2015. The Mann-Kendall test, sliding T test, and double accumulation method are adopted to analyze the impact of land use changes on watershed runoff. The results show that with the development of urbanization, a large amount of cultivated land was replaced by urban construction land. By 2015, the construction land area accounted for 72.16% of the total area. The year 1995 was a turning point in the urbanization development. The change of land use type has substantial influence on runoff and results in the increase of runoff coefficient. Human activities become the main factor affecting runoff change in the Puhe River Basin.

本文旨在评估城市化对土地利用变化的影响以及土地利用变化对流域径流的影响。采用最大似然法对1985-2015年浦河流域7幅遥感影像进行解译。 Mann-Kendall检验，滑动T采用双累积法分析土地利用变化对流域径流的影响。结果表明，随着城市化的发展，大量耕地被城市建设用地取代。到2015年，建设用地面积占总面积的72.16%。1995年是城镇化发展的转折年。土地利用类型的变化对径流有较大影响，导致径流系数增加。人类活动成为影响浦河流域径流变化的主要因素。