[China Instrument Network Instrument Development] Gravity erosion is a common and destructive phenomenon of soil erosion in mountain areas around the world, and is particularly serious in the Loess Plateau region of China. For the gravitational erosion process, research on key technical issues such as difficult observations, difficult experiments, and difficult verifications, recently, the Water Environment Institute of the Faculty of Engineering of Dalian University of Technology proposed a method combining geomorphometers and mobile laboratories to achieve undisturbed performance. Observing the gravitational erosion process of the original steep slope, and separating the gravity erosion from the hydraulic erosion.
The self-designed geomorphometer in this paper has an observation error of gravitational erosion volume within 10%; the self-designed test chamber has a strong structure; during the experiment, it experienced severe weather with more than 100 mm of rainfall and more than 10 instantaneous winds before the rain. The test. This study also analyzed the contribution of gravity erosion and hydraulic erosion to the slope erosion and its role. The study found that gravitational erosion can reach 2 times the amount of hydraulic erosion on a steep loess slope of 70 degrees or more, and gravitational erosion occurs in a short time and is therefore more dangerous. This research result is of great significance for the formulation of the decision-making for soil erosion control in the Yellow River Basin. This study was jointly funded by the National Natural Science Foundation of China and the Talent Support Program for Higher Education of Liaoning Province.
The research results were published in the international journal Scientific Instruments Review under the title “Measuring Systems for Gravity Erosion Field Tests†and were featured by the American Physical Society Press.
"Scientific Instrument Review" is an academic journal published by the American Physical Society Press on instrument research. The American Physical Society is one of the most prestigious physics professional societies in the world. The American Physical Society Press is sponsored by the American Physical Society and owns 19 high-level academic journals.
(Original title: Dalian University of Technology R&D Measurement System for Gravity Erosion Site)
The self-designed geomorphometer in this paper has an observation error of gravitational erosion volume within 10%; the self-designed test chamber has a strong structure; during the experiment, it experienced severe weather with more than 100 mm of rainfall and more than 10 instantaneous winds before the rain. The test. This study also analyzed the contribution of gravity erosion and hydraulic erosion to the slope erosion and its role. The study found that gravitational erosion can reach 2 times the amount of hydraulic erosion on a steep loess slope of 70 degrees or more, and gravitational erosion occurs in a short time and is therefore more dangerous. This research result is of great significance for the formulation of the decision-making for soil erosion control in the Yellow River Basin. This study was jointly funded by the National Natural Science Foundation of China and the Talent Support Program for Higher Education of Liaoning Province.
The research results were published in the international journal Scientific Instruments Review under the title “Measuring Systems for Gravity Erosion Field Tests†and were featured by the American Physical Society Press.
"Scientific Instrument Review" is an academic journal published by the American Physical Society Press on instrument research. The American Physical Society is one of the most prestigious physics professional societies in the world. The American Physical Society Press is sponsored by the American Physical Society and owns 19 high-level academic journals.
(Original title: Dalian University of Technology R&D Measurement System for Gravity Erosion Site)