This work aims to study and date the erosion process in a gully located at the Experimental Station of Tupi (Piracicaba, São Paulo, Brazil) using dendrogeomorphology. Dendrogeomorphology is a relatively new science that relates the growth of tree-rings with geomorphological processes allowing chronological reconstruction and occurrence of events. The relevance of this study is to know the potential of this science in tropical areas because currently this type of study is lacking in these areas. This technique was applied using exposed roots of species of Pinus ssp. The dating of the erosion process was based on the changes in the pattern of root growth, such as the width of the ring, eccentric growth, percentage of latewood and density of the wood that occur after exposure by erosion. Through the study of these changes the first year of root exposure was determined, and the annual rate of erosion was estimated. Erosion rates of 0.65 and 2.39 m/year were found, characterizing the longitudinal advancement of the gully. Finally, dendrogeomorphology demonstrates great potential as a tool in tropical areas. The data and information obtained can be translated into a dendrogeomorphological database and contribute to the expansion of this science in Brazil and areas of tropical environments.

这项工作旨在利用树状地貌学研究并确定位于图皮实验站（巴西圣保罗的皮拉西卡巴）的一条沟中的侵蚀过程并确定其年代。树突形态学是一门相对较新的科学，它将树轮的生长与地貌过程联系起来，从而可以按时间顺序重建和发生事件。这项研究的相关性是要了解这种科学在热带地区的潜力，因为目前在这些地区尚缺乏此类研究。使用松属树种的裸露根来应用该技术ssp。侵蚀过程的年代是根据根部生长模式的变化而定的，例如环暴露的宽度，偏心率的增长，胶合板的百分比和木材的密度等。通过研究这些变化，确定了第一年的根系接触，并估算了年侵蚀率。发现侵蚀率分别为0.65和2.39 m /年，这是沟壑纵向发展的特征。最后，树状地貌学在热带地区显示出巨大的潜力。获得的数据和信息可以转换成树状地貌数据库，并有助于该科学在巴西和热带环境地区的扩展。