关键词: 崩岗, 侵蚀, CORS-RTK, GIS空间分析

Abstract:

The collapsing gully is seriously harmful for its tremendous amount of erosion. At present, the traditional methods (runoff plots and plug sign method) in monitoring collapsing gully are limited to some extent. The CORS-RTK dynamic measurement combined with GIS spatial analysis was adopted to study the collapsing gully in Chengfeng Village in eastern Hubei Province. We measured the parameters quantitatively, such as the fracture morphology, slope and retreat, and then calculated the erosion amount by comparing the collapsing gully data in different phases. The results fully showed the advantages of CORS-RTK survey in monitoring of collapsing gully, such as high accuracy and high-speed, which provides an alternative approach for monitoring collapsing gully.

Key words: collapsing gully, erosion, CORS-RTK, GIS spatial analysis