Since the last decades of nineteenth century, Italian rivers experienced remarkable morphological changes. Most of the previously investigated river channels were affected by intense human disturbances, which were frequently indicated as the main control factor. In contrast, the Tammaro River (southern Italy) underwent less complex human interventions than other Italian rivers, at least since the recent closure of the Campolattaro Dam in the median zone of the catchment. Thus, it represents a good example to analyze the effects of changes in climate and land use on short-term channel adjustments. In this paper, the channel adjustments experienced by the Tammaro River over a period of ~140 yr (1870–2011) were investigated. The study integrated results from GIS-based geomorphological and land-use analysis, field surveys, and analysis of hydrological data (rainfall, flow discharges, extreme floods). From the last decades of nineteenth century to the mid 1930s, the river experienced widening and a slight increase in transitional channel morphologies (Phase-1). From the 1930s to the late 1990s, the river underwent a marked narrowing and limited to moderate incision (Phase-2). The geomorphological effects of the 1949 extreme flood were superimposed on the Phase-2 response. Finally, from 1990s onwards (Phase-3), the river experienced substantial stability with respect to the changes during the previous phases and different behaviors at the reach scale. During Phase-3, changes in channel morphology were observed a few years after the closure of the Campolattaro Dam. The morpho-evolutionary phases observed for the Tammaro River were very similar, even if slightly diachronous, to those reported in the literature for more anthropized rivers of southern Italy.

自19世纪最后几十年以来，意大利河流经历了显着的形态变化。先前调查的大多数河道都受到强烈的人为干扰的影响，这经常被认为是主要的控制因素。相比之下，塔玛罗河（意大利南部）受到的人为干预比其他意大利河流要少，至少自从最近流域中部地区的坎波拉塔罗大坝关闭以来。因此，它是分析气候和土地利用变化对短期渠道调整的影响的一个很好的例子。本文研究了塔玛罗河在约140年（1870年至2011年）期间经历的河道调整。该研究综合了基于GIS的地貌和土地利用分析，实地调查，和水文数据分析（降雨，流量排放，特大洪水）。从19世纪的最后几十年到1930年代中期，这条河经历了拓宽和过渡河道形态略有增加（第一阶段）的情况。从1930年代到1990年代后期，这条河经历了明显的变窄并仅限于中等切口（第二阶段）。1949年特大洪水的地貌影响叠加在第二阶段响应上。最后，从1990年代开始（第3阶段），这条河经历了前几个阶段的变化以及河段范围内的不同行为，因此具有了相当大的稳定性。在第三阶段，在坎波拉塔罗大坝关闭数年后，观察到河道形态发生了变化。塔玛罗河的形态演化阶段非常相似，