Assessment of Gully Erosion in the Chinese Loess Plateau
- Boden und Landökosysteme
- Wasser - Atmosphäre - Umwelt
- Lebensraum und Landschaft
Abstract
Gully erosion is an enormous type of environmental degradation which leads to loss of valuable land used for agricultural and domestic purposes, as well as to loss of property and even human lives. This erosion process creates major environmental and economic problems. Processes of gully erosion often involve (1) hydraulic erosion at gully headwater region, (2) failure of gully walls at headwater section and along the gully channels, (3) scour at the toe of gully headwater section, and (4) longitudinal erosion along gully channel bed. Gully development has been quantified by monitoring the progress of gully length as well as gully cross sections and by quantification through estimation of sediment production that deposited at the toes of gullies or farther downstream in the channels. A wide range of techniques - ranging from ground based to airborne - exist to determine volume and development of gullies. In last years digital photogrammetry and geographic information system (GIS) techniques are used to access multi-date digital surface models (DSMs) and to document spatial erosion patterns as well as to estimate sediment production.
Project staff
Andreas Klik
Ao.Univ.-Prof.i.R. Dipl.-Ing.Dr.nat.techn. Andreas Klik
andreas.klik@boku.ac.at
Tel: +43 1 47654-81567
Project Leader
01.10.2016 - 30.09.2017
BOKU partners
External partners
Northwest A&F University
Dr. Fenli Zheng
partner