坝上地区是我国重要的农牧交错带，生态环境较为脆弱。本研究基于高分辨率遥感影像和5米分辨率的DEM数据，对坝上一典型区域共303条切沟进行解译。计算得到切沟的单一形态参数（周长、面积、体积等）和复合形态参数（形状指数、逼近度等），以期从多个角度分析研究区域切沟形态特征的空间分布格局。此外，通过收集气候、地形、地质、土壤等自然以及人文因素数据，借助地理探测器工具，探究影响研究区切沟形态特征空间分布的主要因子。研究结果表明：1）坝上地区切沟形态参数差异较大，存在不同规模和不同发育阶段的切沟；2）坝上地区切沟形态特征空间分布差异较大，但除平均宽度、垂直逼近度外，在空间上呈现一定的聚集特点；3）利用地理探测器对坝上地区不同形态特征切沟影响因子进行探究发现，地形因子，尤其是平面曲率、剖面曲率、坡度等，以及距道路距离、距河流距离等影响因子的解释力较强。

The Bashang region is an important agricultural and pastoral crossover zone in China with a fragile ecological environment. Based on high-resolution remote sensing images and 5-meter resolution DEM data, this study interpreted a total of 303 gullies in a typical area of Bashang. The study calculated the single morphological parameters (perimeter, area, volume, etc.) and composite morphological parameters (shape index, convergence degree, etc.) of the gullies, in order to analyze the spatial distribution pattern of the gully morphology characteristics in the study area from multiple perspectives. In addition, by collecting natural and human factors data such as climate, topography, geology, soil, etc., and using the geographic detector tool, the study explored the main factors affecting the spatial distribution of gully morphology characteristics in the study area. The results of the study show that: 1) there is a large difference in gully morphological parameters in the Bashang region, with gullies of different sizes and development stages; 2) there is a large difference in the spatial distribution of gully morphology characteristics in the Bashang region, but except for average width and vertical convergence degree, there is a certain aggregation pattern in space; 3) using the geographic detector to explore the impact factors of different morphological characteristics of gullies in the Bashang region, it was found that topographic factors, especially plane curvature, profile curvature slope, soil texture, distance from roads, and distance from rivers, have strong explanatory power and large correlation.