Influence of topography on the asymmetry of rill cross-sections in the Yuanmou dry-hot valley.

ABSTRACT: Rill erosion is one of the most common types of erosion, and the development conditions of the asymmetric characteristics of rill cross-sections are still relatively poorly understood. To explore the relationship between rill topography and rill cross-sectional asymmetry, we used the microtopographic profiler method to measure 712 groups of rill cross-sections in the Yuanmou dry-hot valley area. The results of correlation analysis and principal component analysis to investigate the topographical conditions of rill development show that: (1) asymmetry is the main feature in rill cross-sections; 53% of rill cross-sections are right-biased and 47% are left-biased. (2) There is an extremely significant positive correlation between the slope difference and the rill cross-section asymmetry ratio

SUBMITTER: Gu X 

PROVIDER: S-EPMC9385726 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature