Structures and techniques aiming at controlling sediment transport-related or erosion-related issues are numerous and sometimes very old. Hillslope management and bioengineering, reforestation, and torrent control works using transverse structures, as check dams and more recently open check dams, are common all over the world to curtail soil erosion and torrential hazards. These actions may be launched for the control of sediment supply (i) to the stream fans and valley rivers for flood protection, (ii) to dam reservoirs for water storage, and basically, (iii) for the mere mountain soil conservation and agriculture protection. The profound objectives of each action are diverse and vary depending on the geomorphic context and local state of the sediment cascade, where the implementation takes place. The lack of sufficient understanding of soil erosion processes, sediment (dis)connectivity activation and torrential hazards propagation continues to make soil erosion prevention and torrent control complex topics with insufficient implementation criteria and long-term effect assessment methods. Consequently, some projects still experience disappointing results due to many different reasons, such as poor construction quality, inadequate location or lack of adequate design criteria. In addition, these actions induce secondary effects (e.g., block of the downstream transfer of water and sediments), which should be better controlled or possibly prevented. This EGU session aims at gathering the whole community interested in human actions on control works and soil conservation techniques at the waterhed scale. Any contributions to the understanding of soil erosion control and sediment transport management based on detailed field experiences, high-quality laboratory works, validated numerical models and effectiveness assessment methods are welcome. Using the knowledge gaps identified above as a starting point, the proposed EGU session wishes, for the third year, to join and share scientific and technical opinions from all around the world, related to the legacy effects of soil erosion control and (open) check-dam design criteria, highlighting the role of the complex interactions between ecological elements, geomorphic processes and engineering activities.

Co-organized as GM7.12/HS11.67
Convener: Demetrio Antonio Zema | Co-conveners: Manuel Esteban Lucas-Borja, Guillaume Piton, Yang Yu
| Mon, 08 Apr, 14:00–15:45
Room -2.32
| Attendance Mon, 08 Apr, 16:15–18:00
Hall X1

Attendance time: Monday, 8 April 2019, 16:15–18:00 | Hall X1

Chairperson: Manuel Esteban Lucas-Borja - Yu Yang
X1.171 |
Zhimeng Zhao, Youxin Shen, and Yang Yu
X1.172 |
Geraldo Alves Damasceno Junior, João Semir, and José Carlos Casagrande
X1.173 |
Ararso Etana, Barbro Ulén, and Thomas Keller
X1.174 |
Peng Shi, Peng Li, guoce Xu, Zongping Ren, Shengdong Cheng, Kexin Lu, and Yan Zhang
X1.177 |
Evaluation of the debris flow channels in Beijing mountainous area
(withdrawn after no-show)
Bingjin Qi
X1.178 |
Demetrio Antonio Zema, Giuseppe Bombino, Manuel Esteban Lucas Borja, Bruno Gianmarco Carrà, Marco Daniel Hinojosa Guzmán, Alejandro Cruz Hernandez, and Antonino Labate
X1.179 |
Johannes Bramberger and Johannes Hübl
X1.180 |
Ellen Desie, Karen Vancampenhout, Bart Nyssen, Leon Van den Berg, and Bart Muys
X1.181 |
Giuseppe Bombino, Daniela D'Agostino, Pietro Denisi, Antonino Labate, Manuel Esteban Lucas-Borja, Demetrio Antonio Zema, and Santo Marcello Zimbone
X1.182 |
Goswin Heckrath, Nils Onnen, Antoine Stevens, Preben Olsen, Johannes W.M. Pullens, Brian Kronvang, and Kristof Van Oost
X1.183 |
Yawei Ning, Guohua Liang, and Huicheng Zhou